WO2021163286A1 - Dynamic battery charging system and method, and battery charging device - Google Patents

Dynamic battery charging system and method, and battery charging device Download PDF

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Publication number
WO2021163286A1
WO2021163286A1 PCT/US2021/017602 US2021017602W WO2021163286A1 WO 2021163286 A1 WO2021163286 A1 WO 2021163286A1 US 2021017602 W US2021017602 W US 2021017602W WO 2021163286 A1 WO2021163286 A1 WO 2021163286A1
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WO
WIPO (PCT)
Prior art keywords
current
phase
time
battery charger
battery
Prior art date
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Ceased
Application number
PCT/US2021/017602
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French (fr)
Inventor
Daniel L. SIMON
James Richard STANFIELD
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noco Co
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Noco Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN202180013999.1A priority Critical patent/CN115104232A/en
Priority to US17/904,170 priority patent/US12401218B2/en
Priority to GB2211901.0A priority patent/GB2607513B/en
Priority to MX2022009816A priority patent/MX2022009816A/en
Priority to AU2021218589A priority patent/AU2021218589B2/en
Priority to EP21754631.6A priority patent/EP4091231A4/en
Application filed by Noco Co filed Critical Noco Co
Priority to JP2022548999A priority patent/JP7429800B2/en
Priority to CA3170979A priority patent/CA3170979C/en
Publication of WO2021163286A1 publication Critical patent/WO2021163286A1/en
Anticipated expiration legal-status Critical
Priority to AU2023226751A priority patent/AU2023226751B2/en
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/96—Regulation of charging or discharging current or voltage in response to battery voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/90—Regulation of charging or discharging current or voltage
    • H02J7/94—Regulation of charging or discharging current or voltage in response to battery current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention is directed to a dynamic battery charging system and method, and a battery charging device including or incorporating the dynamic battery charging method according to the present invention.
  • Lead Acid battery technology is over 100 years old. Battery companies have improved the technology over the years but many of the problems that the original batteries had, still exist today. For example, Lead Acid batteries tend to age rapidly and lose capacity because of sulfation (i.e. a buildup of lead sulfate crystals on battery plates) and other issues. One of the main methods used to fight these problems is properly charging the batteries.
  • the present invention is directed to a system and method for dynamic battery charging, and an improved battery charger incorporating the system and/or method.
  • the method comprises or consists of a number of steps for reducing the time to fully charge a battery (e.g. lead acid battery), and improving finishing or topping-off the charging of the battery.
  • a battery e.g. lead acid battery
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an
  • the presently described subject matter is directed to a battery charger, including or incorporating a dynamic battery charging method, comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the
  • the presently described subject matter is directed to a battery charger, including or incorporating a dynamic battery charging system using or incorporating a dynamic battery charging method, comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage
  • FIG. 1 is a flow chart showing the Dynamic Battery Charging method according to the present invention.
  • the Dynamic Charging method according to the present invention is shown in FIG. 1.
  • the Dynamic Charging method allows this threshold to be variable by doing a
  • DI/DT calculation as follows: ) Mark time when charger switches from Constant Current (CC) to Constant voltage(CV) (start of Absorption) - CV Start time; ) Starting at CV Start Time - At 5 minute intervals (this length of the time interval can vary) - measure charger current by averaging current samples spaced 1 second apart; ) Calculate the Delta Current - Subtract the current 5 minute measurement from the previous 5 minute charger current measurement. ) Terminate the CV phase once the Delta Current is less than or equal to 40mA (this current level can vary) OR once the charger current drops below 1-2 Amps (this current level can vary). Mark the time when the charger terminates the CV phase as CV Finish Time.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

A dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, including marking a time when battery charger switches from Constant Current (CC) phase to Constant voltage (CV) phase to establish CV Start Time; starting at CV Start Time; calculating Delta Current by subtracting current measurement at particular time interval from previous current measurement at an earlier time interval; terminating CV phase once Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking CV Finish Time; switching back to another CC phase once CV phase is terminated; and staying at another CC phase for a time period equal to the CV Finish Time minus CV start Time OR until lead acid battery reaches CV voltage plus an additional voltage amount to complete charging.

Description

TITLE
DYNAMIC BATTERY CHARGING SYSTEM AND METHOD, AND BATTERY CHARGING DEVICE
FIELD
The present invention is directed to a dynamic battery charging system and method, and a battery charging device including or incorporating the dynamic battery charging method according to the present invention.
BACKGROUND
Lead Acid battery technology is over 100 years old. Battery companies have improved the technology over the years but many of the problems that the original batteries had, still exist today. For example, Lead Acid batteries tend to age rapidly and lose capacity because of sulfation (i.e. a buildup of lead sulfate crystals on battery plates) and other issues. One of the main methods used to fight these problems is properly charging the batteries.
Charging Lead Acid batteries presents many challenges, particularly at the end of charge. Smart chargers have provided improvement, but still have many limitations. Some of those limits are listed below:
1 ) The termination of Taper Charge (Absorption) is not ideal. For some Lead Acid batteries it is too early, and for other Lead Acid batteries it is too late. Currently, hard coded thresholds for Specific Gravity Optimization Current Threshold being used are currently fixed values. Instead, it is desired to make this threshold variable based on how the charger current changes over time.
2) Currently, the Optimization step is too long because the Specific Gravity/Maintenance current is too low. This leads to very long charge times.
3) Trying to charge a Lead Acid battery that is only slightly discharged makes the charger go to specific gravity optimization which leads to very long charge time.
The variation in battery sizes as well as plate damage adds to this challenge. A new Dynamic Battery Charging method is desired to help address these challenges.
SUMMARY
The present invention is directed to a system and method for dynamic battery charging, and an improved battery charger incorporating the system and/or method.
The method comprises or consists of a number of steps for reducing the time to fully charge a battery (e.g. lead acid battery), and improving finishing or topping-off the charging of the battery.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the time interval is a fixed length time interval.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the time interval is a fixed length time interval and wherein the fixed length time interval can be varied or set to a different fixed length time interval before or during charging operation.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the time interval is a fixed length time interval, wherein the fixed length time interval is five (5) minutes.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein a length of the time interval can vary in a sequence during charging operation.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the multiple operating current samples are taken at fixed lengths of time.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the multiple operating current samples are taken at fixed lengths of time, and wherein the fixed length of time is one (1) second.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the multiple operating current samples are taken at a timed sequence.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the multiple operating current samples are taken at a timed sequence, and wherein the timed sequence comprises a sequence of fixed time intervals and/or varying time intervals.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the CV phase is terminated once the Delta Current is less than or equal to the particular current level of 40mA.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the CV phase is terminated once the Delta Current is less than or equal to the particular current level of 40mA, and wherein the particular battery charger operating current is 1-2 amps.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the CV Time occurs when the value of the operating current meets a CV exit threshold. The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein instead the CV phase is terminated when a set level of optimization current is met.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein instead the CV phase is terminated when a set level of optimization current is met, and wherein a CC optimization current to be used is a value of the operating current when the battery charger exited the CV phase.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein the additional voltage amount is 500mV.
The presently described subject matter is directed to a dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery, wherein instead the CV phase is terminated when a set level of optimization current is met.
The presently described subject matter is directed to a battery charger, including or incorporating a dynamic battery charging method, comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery.
The presently described subject matter is directed to a battery charger, including or incorporating a dynamic battery charging system using or incorporating a dynamic battery charging method, comprising or consisting of: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a flow chart showing the Dynamic Battery Charging method according to the present invention.
DETAILED DESCRIPTION
Most smart battery chargers use “fixed time methods” to finish or top-off charge on Lead Acid batteries. They include fixed current thresholds.
The Dynamic Charging method according to the present invention is shown in FIG. 1. The Dynamic Charging method allows this threshold to be variable by doing a
DI/DT calculation as follows: ) Mark time when charger switches from Constant Current (CC) to Constant voltage(CV) (start of Absorption) - CV Start time; ) Starting at CV Start Time - At 5 minute intervals (this length of the time interval can vary) - measure charger current by averaging current samples spaced 1 second apart; ) Calculate the Delta Current - Subtract the current 5 minute measurement from the previous 5 minute charger current measurement. ) Terminate the CV phase once the Delta Current is less than or equal to 40mA (this current level can vary) OR once the charger current drops below 1-2 Amps (this current level can vary). Mark the time when the charger terminates the CV phase as CV Finish Time. Note the value of the current once the CV exit threshold is met; ) The charger will then switch back to CC mode (optimization) once the above threshold has been met. Instead, a set level of optimization current can be used (it is desired that the CC optimization current to be used is the value of the current when the charger exited the CV phase in the above step); and ) It is desired to stay at the CC level for a time = (CV Finish Time - CV start Time) OR until the battery reaches (CV voltage + 500mV (temperature compensated). At this point the charge is considered complete.

Claims

1. A dynamic battery charging method for use in a battery charger configured to charge a lead acid battery, the method comprising: marking a time when the battery charger switches from a Constant Current (CC) phase to a Constant voltage (CV) phase to establish a CV Start Time; starting at the CV Start Time, begin measuring at successive time intervals an operating current of the battery charger by averaging multiple operating current samples taken during one or more successive time intervals; calculating a Delta Current by subtracting a current measurement at a particular time interval from a previous current measurement at an earlier time interval; terminating the CV phase once the Delta Current is less than or equal to a particular Delta Current current level OR once the battery charger operating current drops below a particular battery charger operating current; marking a CV Finish Time when the battery charger terminates the CV phase; switching back to another CC phase once the CV phase is terminated; and staying at the another CC phase for a time period equal to the CV Finish Time minus the CV start Time OR until the lead acid battery reaches CV voltage plus an additional voltage amount to complete charging of the lead acid battery.
2. The method according to claim 1, wherein the time interval is a fixed length time interval.
3. The method according to claim 2, wherein the fixed length time interval can be varied or set to a different fixed length time interval before or during charging operation.
4. The method according to claim 2, wherein the fixed length time interval is five (5) minutes.
5. The method according to claim 1 , wherein a length of the time interval can vary in a sequence during charging operation.
6. The method according to claim 1, wherein the multiple operating current samples are taken at fixed lengths of time.
7. The method according to claim 6, wherein the fixed length of time is one (1 ) second.
8. The method according to claim 1, wherein the multiple operating current samples are taken at a timed sequence.
9. The method according to claim 8, wherein the timed sequence comprises a sequence of fixed time intervals and/or varying time intervals.
10. The method according to claim 1, wherein the CV phase is terminated once the Delta Current is less than or equal to the particular current level of 40mA.
11. The method according to claim 10, wherein the particular battery charger operating current is 1-2 amps.
12. The method according to claim 1 , wherein the CV Time occurs when the value of the operating current meets a CV exit threshold.
13. The method according to claim 1, wherein instead the CV phase is terminated when a set level of optimization current is met.
14. The method according to claim 13, wherein a CC optimization current to be used is a value of the operating current when the battery charger exited the CV phase.
15. The method according to claim 1, wherein the additional voltage amount is 500mV.
16. A battery charger, including the dynamic battery charging method according to claim 1.
17. A battery charger comprising a battery charging system, the battery charging system, using or incorporating the dynamic battery charging method according to claim 1.
PCT/US2021/017602 2020-02-14 2021-02-11 Dynamic battery charging system and method, and battery charging device Ceased WO2021163286A1 (en)

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US17/904,170 US12401218B2 (en) 2020-02-14 2021-02-11 Dynamic battery charging system and method, and battery charging device
GB2211901.0A GB2607513B (en) 2020-02-14 2021-02-11 Dynamic battery charging system and method, and battery charging device
MX2022009816A MX2022009816A (en) 2020-02-14 2021-02-11 Dynamic battery charging system and method, and battery charging device.
AU2021218589A AU2021218589B2 (en) 2020-02-14 2021-02-11 Dynamic battery charging system and method, and battery charging device
EP21754631.6A EP4091231A4 (en) 2020-02-14 2021-02-11 DYNAMIC BATTERY CHARGING SYSTEM AND METHOD, AND BATTERY CHARGING DEVICE
CN202180013999.1A CN115104232A (en) 2020-02-14 2021-02-11 Dynamic battery charging system and method and battery charging device
JP2022548999A JP7429800B2 (en) 2020-02-14 2021-02-11 Dynamic battery charging system and method and battery charger
CA3170979A CA3170979C (en) 2020-02-14 2021-02-11 Dynamic battery charging system and method, and battery charging device
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024979A1 (en) 1995-02-07 1996-08-15 Benchmarq Microelectronics, Inc. Lead acid charger
US20030006735A1 (en) * 2001-05-29 2003-01-09 Canon Kabushiki Kaisha Detecting method for detecting internal information of a rechargeable battery, detecting apparatus for detecting internal information of a rechargeable battery, apparatus in which said detecting method is applied, apparatus including said detecting apparatus, and storage medium in which a software program of said detecting method is stored
US20050007075A1 (en) * 2003-06-19 2005-01-13 Woo Lee Won Battery charger circuits using constant current/constant voltage mode using maintenance offset currents and methods of operating the same
US20060192531A1 (en) * 2002-07-30 2006-08-31 Junji Nishida Method and apparatus for battery charging with constant current, constant voltage, and pulsed charging
US20080203974A1 (en) * 2007-02-22 2008-08-28 Atmel Corporation Soft transition from constant-current to a constant-voltage mode in a battery charger
CN102130368A (en) 2011-02-16 2011-07-20 江苏技术师范学院 Preheating charging method of valve-controlled type lead-acid storage battery
US20120081068A1 (en) * 2010-10-04 2012-04-05 Shigefumi Odaohhara Method and Apparatus for Charging Batteries

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0322370A (en) * 1989-06-20 1991-01-30 Matsushita Electric Ind Co Ltd How to charge a sealed lead acid battery
JP3384027B2 (en) * 1993-05-14 2003-03-10 ソニー株式会社 Charging method and charger
JPH09289741A (en) * 1996-04-19 1997-11-04 Suzuki Motor Corp Charger
JP3966810B2 (en) * 2002-12-11 2007-08-29 松下電器産業株式会社 Storage battery full charge determination device, remaining capacity estimation device, full charge determination method, and remaining capacity estimation method
EP1905143A1 (en) 2005-06-30 2008-04-02 Koninklijke Philips Electronics N.V. Method and charger for boost charging a chargeable battery on the basis of a physical model
US7375491B2 (en) * 2005-12-16 2008-05-20 Sunjett Corporation Battery charge circuit with multi-charge stage and method thereof
US20100102781A1 (en) * 2008-10-24 2010-04-29 Sony Ericsson Mobile Communications Ab Apparatus and method for charging a battery
US8970180B2 (en) 2009-04-07 2015-03-03 Qualcomm Incorporated Wireless power transmission scheduling
US9762069B2 (en) * 2009-05-19 2017-09-12 Duracell U.S. Operations, Inc. Multi-use fast rate charging stand
CN201846097U (en) 2010-07-14 2011-05-25 陈赖容 Charging optimization manager for lead-acid storage battery
AU2011316798B2 (en) 2010-10-22 2017-02-02 Nucleus Scientific, Inc. Apparatus and method for rapidly charging batteries
US20170288417A1 (en) 2016-03-31 2017-10-05 Active-Semi (BVI) Inc. Fast Charging Apparatus and Method
WO2018051866A1 (en) * 2016-09-14 2018-03-22 富士電機株式会社 Lead storage battery device, device for controlling lead storage battery, and method for controlling lead storage battery
EP3721528A1 (en) * 2017-12-06 2020-10-14 Yazami Ip Pte. Ltd. Method and system for fast-charging an electrochemical cell and fast-charging controller implemented in this system
US11035904B2 (en) * 2018-07-23 2021-06-15 Samsung Sdi Co., Ltd. Battery control apparatus and method for detecting internal short of battery

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024979A1 (en) 1995-02-07 1996-08-15 Benchmarq Microelectronics, Inc. Lead acid charger
US20030006735A1 (en) * 2001-05-29 2003-01-09 Canon Kabushiki Kaisha Detecting method for detecting internal information of a rechargeable battery, detecting apparatus for detecting internal information of a rechargeable battery, apparatus in which said detecting method is applied, apparatus including said detecting apparatus, and storage medium in which a software program of said detecting method is stored
US20060192531A1 (en) * 2002-07-30 2006-08-31 Junji Nishida Method and apparatus for battery charging with constant current, constant voltage, and pulsed charging
US20050007075A1 (en) * 2003-06-19 2005-01-13 Woo Lee Won Battery charger circuits using constant current/constant voltage mode using maintenance offset currents and methods of operating the same
US20080203974A1 (en) * 2007-02-22 2008-08-28 Atmel Corporation Soft transition from constant-current to a constant-voltage mode in a battery charger
US20120081068A1 (en) * 2010-10-04 2012-04-05 Shigefumi Odaohhara Method and Apparatus for Charging Batteries
CN102130368A (en) 2011-02-16 2011-07-20 江苏技术师范学院 Preheating charging method of valve-controlled type lead-acid storage battery

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4091231A1

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