WO1990003682A1 - Batterie et systeme de recharge de batterie - Google Patents

Batterie et systeme de recharge de batterie Download PDF

Info

Publication number
WO1990003682A1
WO1990003682A1 PCT/US1989/003462 US8903462W WO9003682A1 WO 1990003682 A1 WO1990003682 A1 WO 1990003682A1 US 8903462 W US8903462 W US 8903462W WO 9003682 A1 WO9003682 A1 WO 9003682A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
charging
information
data representing
processing
Prior art date
Application number
PCT/US1989/003462
Other languages
English (en)
Inventor
Jaime Andres Borras
Original Assignee
Motorola, Inc.
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
Application filed by Motorola, Inc. filed Critical Motorola, Inc.
Priority to KR1019900701131A priority Critical patent/KR900702616A/ko
Publication of WO1990003682A1 publication Critical patent/WO1990003682A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00036—Charger exchanging data with battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule

Definitions

  • This invention relates generally to rechargeable batteries and battery chargers, and more specifically to a cooperative rechargeable battery system for facilitating battery recharging, while optimizing useful battery life.
  • rechargeable batteries have found wide utility in powering contemporary consumer and business products.
  • nickel cadmium batteries may be repeatedly used to energize computers, radios, pagers and other such devices.
  • rechargeable batteries may be readily re-energized after use (discharge) via a recharging unit.
  • a particular problem with rechargeable batteries arises when the battery (or the cells therein) are repeatedly subject to a full recharge after only a partial or incomplete discharge. For example, if a product powered by a rechargeable battery were used only a portion of each day, and the batteries were allowed to fully recharge each evening, the batteries may, over time, develop a voltage depression phenomena (commonly referred to as the "memory effect"), which may reduce the battery's useful capacity.
  • batteries are constructed and arranged to retain a historical record of their use (discharge), capacity, and discharge/recharge cycles.
  • This historical battery use data may be retrieved and analyzed by a charging system to optimally recharge the battery thereby maximizing battery life, while avoiding the "memory effect" problems of the prior art.
  • the historical battery data may be accessed by a device being powered by the battery so as to provide the device operator with information regarding the battery's capacity, useful life, and inform the operator when recharging is required.
  • Figure 1 is a block diagram illustrating a preferred embodiment of a battery and charging system in accordance with the invention
  • Figure 2 is is a block diagram illustrating another preferred embodiment of a battery and charging system in accordance with the invention.
  • the battery (10) is comprised chiefly of several cells (14), which collectively form an energy storage means.
  • the battery (10) includes a controller (or use monitor) comprising a microprocessor (16), which communicates via an address bus (26) and a data bus (24) with a suitable amount of read-only memory (ROM) (18), random access memory (RAM) (20), and electronically eraseable programmable read-only memory (EEPROM) (22).
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electronically eraseable programmable read-only memory
  • the microprocessor's operational instructions (program) reside in the ROM, while semi-permanent and temporary information may be stored in the EEPROM and RAM respectively.
  • one or more temperature activated fuses (28) are employed in conventional batteries to provide protection in the event that the internal temperature of the battery should rise above a predetermined level.
  • one of these fuses may be used to measure the rate of current discharged from the battery by measuring the voltage drop across the internal resistance of the fuse.
  • the battery (10) is preferably provided with a multiplexer (30), which routes the voltage present on each side of the fuse (28) to the microprocessor (16) via an analog to digital (A/D) converter (32). Further, the multiplexer (30) is coupled (31 ) so as to enable the microprocessor (16) to determine the present battery voltage. In this way, the battery (10) may determine its discharge rate, and, while in use, may provide a user with information regarding the battery's capacity, useful life, and inform the user when a recharge is required via a display (34).
  • each of the above described components are powered by the battery itself using either a regulated (36) or unregulated (38) version of the battery's energy.
  • each of the battery's active components are constructed using complementary metal oxide semiconductor (CMOS) technology, or comprise other suitable low current drain devices.
  • CMOS complementary metal oxide semiconductor
  • the battery (10) is provided with a battery saver (37), which may be activated (39) by the microprocessor (16) so as to conserve energy.
  • the battery (10) of the present invention activates the battery saver (37) after completing communication with the charging unit (12). Further, when powering a battery powered device, the battery saver (37) may be activated either independently or in response to an operational status of the battery powered device.
  • the battery saver (37) would be activated in response thereto so as not to be consuming battery power. Conversely, should the battery (10) be in the battery saving mode at a time when the battery powered device enters a higher power consuming state (i.e., transmitting), the battery (10) leave the battery saving mode to monitor the battery powered device. In this way, battery use (discharge) history data may be generated and maintained without unduly consuming energy.
  • the charging unit (12) may be seen to be controlled by a microprocessor (50), which communicates via an address bus (58) and a data bus (60) with a suitable amount of ROM (52), RAM (54) and EEPROM (56). Additionally, the major elements of the charging unit (12) include a programmable constant current source (46), which may be programmed (48) by the microprocessor (50) to provide at least a rapid charging current and a trickle charging current, and a discharge circuit (68), which is constructed and arranged to reduce any energy remaining in the battery (10) to a sufficient level to avoid any "memory effect" problems after recharging. As can be seen, the charging unit (12) interacts with the battery (10) at five contact points.
  • a common ground or return (40) is established.
  • the charging current is presented to the battery at a second contact (62).
  • a diode (64) is employed to prohibit unwanted discharge of the battery.
  • a separate discharge path is provided at a third contact (66) when a discharging current flow is required.
  • the remaining two contact points provide information which may be used to facilitate the charging of the battery.
  • a thermistor (70) which may be biased by a resistor (72) in the charging unit (12).
  • the voltage at a sensing contact (76) may be digitized (74) to enable the microprocessor to determine the internal temperature of the , battery.
  • the rate of the battery's temperature rise may be determined.
  • other information regarding the battery's charging requirements may be provided to the charging unit (12) via a serial communication link (78) (which couples the microprocessor (16) of the battery (10) with the microprocessor (50) of the charging unit (12)).
  • data representing the battery's identification code, model (or battery type) code, past charging history, and past use (discharge rate) history may be provided to the charging unit (12).
  • the battery may communicate with a device, such as a two-way radio, via the serial communication link (78).
  • the charging unit (12) is designed to selectively (42) present a sufficient charging current to the battery (10) so as to replenish any dissipated energy. According to the invention, this is accomplished by first requesting data from the battery.
  • the data received from the battery (10) includes at least a battery identification code, use (discharge rate) information, and data indicating the number of recharge cycles since the last discharge of the battery (either through use or discharges prior to recharging). If the number of charging cycles since the last discharge equals or exceeds a threshold, the battery (10) is discharged prior to charging by coupling (80) the battery to the discharging circuit (68).
  • the charging unit (12) determines the optimum charging time by analysis of the use (discharge rate) data either separately or in conjunction with digital representations (82) of the battery's total voltage, and/or measurement of the battery's internal temperature (via the sensing contract (76)). All or a portion of this information may be accessed by and/or presented to an operator via a display (84) either automatically, or under the command or inquiry of the operator which may be entered via a keypad (85).
  • the microprocessor (50) may program (48) the programmable constant current source (46) to achieve a rapid charging cycle (i.e., minimized charging time) that will not unduly overheat or overcharge the battery.
  • a rapid charging cycle i.e., minimized charging time
  • the useful life of the battery is maximized.
  • the "memory effect" may be avoided while battery life is optimized.
  • the charging unit (12) and/or the battery (10) may inform (via displays (34) and (84) respectively) a user when the battery has reached (or is about to reach) the end of its useful life.
  • the charging unit (12) may send updated charging information to the battery (10) via the serial communication link (78) to be processed (16), stored (22), and optionally displayed (34) by the battery.
  • Such information may include, but is not limited to, incrementing the history of total discharges; incrementing the number of charges relative to the last discharge; the total charging time; and, the total battery voltage after charging. All or a portion of this information may be accessed by and/or displayed to a user during use of the battery. Of course, in accordance with the invention, this information may again be retrieved, processed, updated, and stored during the next charging cycle.
  • the battery (10') of Figure 2 includes a microcontroller (130), which preferably comprises an MC68HC11 microcontroller manufactured by Motorola, Inc., or its functional equivalent.
  • the microcontroller (130) communicates via a serial link (78') with a microprocessor (100), which is controlling a two- way radio (102) that the battery (10') is powering.
  • the microprocessor (100) of the two-way radio (102) also communicates via an address bus (104) and a data bus (106) with a suitable amount of ROM (108), RAM (110), and EEPROM (1 12).
  • the major elements of the two-way radio (102) include a transmitter (114) and a receiver (116), which may be selectively (118) coupled to an antenna (122) via an antenna switch (120).
  • the two-way radio (102) may include a display (124) and a keypad (1 6).
  • all major elements of the two-way radio (102) are powered by a regulated (128) version of the battery's energy received at a contact (66').
  • a battery saver 127
  • a battery saver which may be activated (129) by the microprocessor (100) to enter a low power mode.
  • the activation, deactivation, or other operational mode variations of the radio (102) may be communicated to the battery (10') via the serial link (78'). This information may be used by the battery (10') to more efficiently monitor the radio's use of energy.
  • the microcontroller (130) of the battery (10') is powered by a regulated (132) version of the battery voltage, and includes a memory (130") for storing both charging history and use
  • the radio (102) may provide information to an operator via the radio's display (124). Also, information calculated by the microprocessor (100) of the radio (102) may be stored within the battery by sending it to the microcontroller (130). Additionally, the microcontroller (130) includes several conversion ports (130'), which receive each side of a protective fuse (28), which is typically included in batteries to protect the cells (14). Also, the microcontroller (130) coupled to the diode (64), which, in this embodiment, enables the microcontroller to determine the present battery voltage. By using this information, the microcontroller (130) may determine the use (discharge) rate of the battery (10'), and may display information regarding remaining operational time to the operator.
  • the microcontroller (130) may determine the use (discharge) rate of the battery (10'), and may display information regarding remaining operational time to the operator.
  • the battery (10') may enter the battery saving mode after determining that the discharge rate of the battery has met or fallen below a given threshold.
  • the radio (102) may inform (78') the battery (10') that the radio has been switched off or entered a low power mode (i.e., standby). In this way the battery (10') may enter the battery saving mode either independently or in response to an operational status change of the radio.
  • the battery (10') may leave the battery saving mode to monitor the battery powered device after receiving a status change message from the radio.
  • battery use (discharge) history data may be generated and maintained without unduly consuming energy.
  • this information may be used later by the charging unit (12) to facilitate charging in accordance with the invention.
  • the battery (10') is coupled to the charging unit (12) to replenish the battery's energy.
  • the microcontroller (130) of the battery (10') also enters the battery saving mode after completing communication with the charging unit (12).
  • the two-way radio (102) may remain coupled to the battery (10') or may be removed so as to remain in service by using another battery.
  • the charger (12) operates as discussed above in conjunction with Figure 1 , except that the microprocessor (50) of the charging unit (12) must retrieve (and/or store) information from the microcontroller (130) of the battery (10') via the serial link (78) as discussed above. In this way, the cost, size, and weight of the battery (10') is reduced by employing a single microcontroller to control data gathering, storage, retrieval, and processing. What is claimed is:

Abstract

On fabrique des batteries (10) conçues pour garder une trace dans le temps de l'utilisation (la décharge), de la capacité et des cycles de décharge/recharge. Ces informations sur l'utilisation de la batterie sont extraites et analysées par un système de recharge (12) permettant de recharger de manière optimale la batterie (10), augmentant ainsi la durée de vie de la batterie tout en éliminant les problèmes découlant de l'''effet de mémoire'' chez les modèles de batterie connus à ce jour.
PCT/US1989/003462 1988-09-30 1989-08-16 Batterie et systeme de recharge de batterie WO1990003682A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900701131A KR900702616A (ko) 1988-09-30 1989-08-16 밧데리 및 밧데리 충전 시스템

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25229488A 1988-09-30 1988-09-30
US252,294 1988-09-30

Publications (1)

Publication Number Publication Date
WO1990003682A1 true WO1990003682A1 (fr) 1990-04-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1989/003462 WO1990003682A1 (fr) 1988-09-30 1989-08-16 Batterie et systeme de recharge de batterie

Country Status (4)

Country Link
KR (1) KR900702616A (fr)
CN (1) CN1042457A (fr)
AU (1) AU4186289A (fr)
WO (1) WO1990003682A1 (fr)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404554A2 (fr) * 1989-06-20 1990-12-27 Cass Electronics Limited Système de charge
GB2260231A (en) * 1991-10-01 1993-04-07 Apple Computer Power management system for battery powered computers
EP0545633A1 (fr) * 1991-11-29 1993-06-09 Shaye Communications Limited Améliorations dans la charge des batteries
EP0545747A1 (fr) * 1991-10-30 1993-06-09 Texas Instruments Incorporated Améliorations et systèmes de batteries
EP0546872A1 (fr) * 1991-10-30 1993-06-16 Texas Instruments France Améliorations et systèmes de batteries
EP0574753A2 (fr) * 1992-06-19 1993-12-22 Robert Bosch Gmbh Dispositif de charge
EP0660489A2 (fr) * 1993-12-27 1995-06-28 Hitachi, Ltd. Système de stockage de puissance pour batteries secondaires
WO1995026588A1 (fr) * 1994-03-28 1995-10-05 Seymour, John, York Mode et appareil de traitement des batteries
US5619118A (en) * 1991-02-14 1997-04-08 Chartec Laboratories A/S Method and an apparatus for charging a rechargeable battery
EP0803957A2 (fr) * 1992-08-14 1997-10-29 Chartec Laboratories A/S Batterie et appareil pour la charge d'une batterie rechargeable
US5686815A (en) * 1991-02-14 1997-11-11 Chartec Laboratories A/S Method and apparatus for controlling the charging of a rechargeable battery to ensure that full charge is achieved without damaging the battery
EP0813706A1 (fr) * 1995-10-03 1997-12-29 Microchip Technology Inc. Microregisseur a equipement analogique frontal pour la gestion intelligente des batteries
EP0818869A1 (fr) * 1996-01-26 1998-01-14 Yamaha Hatsudoki Kabushiki Kaisha Procede et dispositif de reduction de l'effet de memoire d'une batterie d'accumulateurs
GB2327542A (en) * 1997-07-17 1999-01-27 Nokia Mobile Phones Ltd Battery deep discharge alert
US6018228A (en) * 1992-10-07 2000-01-25 Dallas Semiconductor Corporation Rechargeable battery pack capable of transmitting dynamic data about itself
US6075339A (en) * 1993-08-16 2000-06-13 Chartec Laboratories A/S Battery system providing indicia of a charging parameter
US6107802A (en) * 1992-07-08 2000-08-22 Matthews; Wallace Edward Battery pack with monitoring function utilizing association with a battery charging system
EP1050944A1 (fr) * 1998-10-15 2000-11-08 Yamaha Hatsudoki Kabushiki Kaisha Systeme d'alimentation en puissance pour vehicule electrique
US6369576B1 (en) 1992-07-08 2002-04-09 Texas Instruments Incorporated Battery pack with monitoring function for use in a battery charging system
EP1100172A3 (fr) * 1999-11-10 2004-10-13 Makita Corporation Dispositif de charge de batterie
USRE39908E1 (en) 1993-12-27 2007-11-06 Hitachi, Ltd. Secondary battery power storage system
EP2020723A3 (fr) * 2007-07-31 2012-11-21 Yamaha Corporation Chargeur de batterie, unité de batterie secondaire et appareil électrique équipé de celui-ci
US9705351B2 (en) 2015-11-09 2017-07-11 Johnson Industries, Inc. Battery exercising device
US9882248B2 (en) 2014-02-25 2018-01-30 Motorola Solutions, Inc. Method and apparatus for controlling access to one or more memories in a rechargeable battery
US10177589B2 (en) 2015-11-09 2019-01-08 Johnson Industries, Inc. Battery exercising device
WO2019246054A1 (fr) * 2018-06-21 2019-12-26 Bose Corporation Décharge à double zone de batteries rechargeables
US10886765B2 (en) 2015-11-09 2021-01-05 Johnson Industries, Inc. Lighted connector for a battery cable

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3920263B2 (ja) * 2003-12-22 2007-05-30 インターナショナル・ビジネス・マシーンズ・コーポレーション 情報処理装置、制御方法、プログラム、及び記録媒体

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US4639655A (en) * 1984-04-19 1987-01-27 Westhaver Lawrence A Method and apparatus for battery charging
US4670703A (en) * 1985-05-06 1987-06-02 General Electric Company Battery charger with three different charging rates
US4709202A (en) * 1982-06-07 1987-11-24 Norand Corporation Battery powered system
US4734635A (en) * 1986-09-26 1988-03-29 Motorola, Inc. Microprocessor controlled battery reconditioner for portable radio transceivers
US4749934A (en) * 1986-11-07 1988-06-07 Alexander Manufacturing Company Intrinsically safe battery circuit

Patent Citations (5)

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US4709202A (en) * 1982-06-07 1987-11-24 Norand Corporation Battery powered system
US4639655A (en) * 1984-04-19 1987-01-27 Westhaver Lawrence A Method and apparatus for battery charging
US4670703A (en) * 1985-05-06 1987-06-02 General Electric Company Battery charger with three different charging rates
US4734635A (en) * 1986-09-26 1988-03-29 Motorola, Inc. Microprocessor controlled battery reconditioner for portable radio transceivers
US4749934A (en) * 1986-11-07 1988-06-07 Alexander Manufacturing Company Intrinsically safe battery circuit

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404554A3 (fr) * 1989-06-20 1992-02-26 Cass Electronics Limited Système de charge
EP0404554A2 (fr) * 1989-06-20 1990-12-27 Cass Electronics Limited Système de charge
US5686815A (en) * 1991-02-14 1997-11-11 Chartec Laboratories A/S Method and apparatus for controlling the charging of a rechargeable battery to ensure that full charge is achieved without damaging the battery
US5619118A (en) * 1991-02-14 1997-04-08 Chartec Laboratories A/S Method and an apparatus for charging a rechargeable battery
GB2260231A (en) * 1991-10-01 1993-04-07 Apple Computer Power management system for battery powered computers
GB2260231B (en) * 1991-10-01 1995-10-11 Apple Computer A battery charging circuit
US5767659A (en) * 1991-10-30 1998-06-16 Texas Instruments Incorporated Batteries and battery systems
EP0545747A1 (fr) * 1991-10-30 1993-06-09 Texas Instruments Incorporated Améliorations et systèmes de batteries
EP0546872A1 (fr) * 1991-10-30 1993-06-16 Texas Instruments France Améliorations et systèmes de batteries
EP0545633A1 (fr) * 1991-11-29 1993-06-09 Shaye Communications Limited Améliorations dans la charge des batteries
EP0574753A2 (fr) * 1992-06-19 1993-12-22 Robert Bosch Gmbh Dispositif de charge
EP0574753A3 (fr) * 1992-06-19 1994-01-19 Bosch Gmbh Robert
US6107802A (en) * 1992-07-08 2000-08-22 Matthews; Wallace Edward Battery pack with monitoring function utilizing association with a battery charging system
US6369576B1 (en) 1992-07-08 2002-04-09 Texas Instruments Incorporated Battery pack with monitoring function for use in a battery charging system
EP0803957A3 (fr) * 1992-08-14 1997-11-19 Chartec Laboratories A/S Batterie et appareil pour la charge d'une batterie rechargeable
EP0803957A2 (fr) * 1992-08-14 1997-10-29 Chartec Laboratories A/S Batterie et appareil pour la charge d'une batterie rechargeable
EP1204187A3 (fr) * 1992-08-14 2005-01-05 Chartec Laboratories A/S Chargeur d'accumulateurs
EP0862256A2 (fr) * 1992-08-14 1998-09-02 Chartec Laboratories A/S Batterie et appareil pour la charge d'une batterie rechargeable
EP0862256A3 (fr) * 1992-08-14 1998-09-09 Chartec Laboratories A/S Batterie et appareil pour la charge d'une batterie rechargeable
US6018228A (en) * 1992-10-07 2000-01-25 Dallas Semiconductor Corporation Rechargeable battery pack capable of transmitting dynamic data about itself
US6075339A (en) * 1993-08-16 2000-06-13 Chartec Laboratories A/S Battery system providing indicia of a charging parameter
EP0969580A2 (fr) * 1993-12-27 2000-01-05 Hitachi, Ltd. Système de stockage de puissance pour batteries secondaires
US5834922A (en) * 1993-12-27 1998-11-10 Hitachi, Ltd. Secondary battery power storage system
EP0969580A3 (fr) * 1993-12-27 2000-07-26 Hitachi, Ltd. Système de stockage de puissance pour batteries secondaires
EP0660489A3 (fr) * 1993-12-27 1995-08-30 Hitachi Ltd Système de stockage de puissance pour batteries secondaires.
USRE39908E1 (en) 1993-12-27 2007-11-06 Hitachi, Ltd. Secondary battery power storage system
EP0660489A2 (fr) * 1993-12-27 1995-06-28 Hitachi, Ltd. Système de stockage de puissance pour batteries secondaires
USRE37678E1 (en) 1993-12-27 2002-04-30 Hitachi, Ltd. Secondary battery power storage system
USRE39749E1 (en) 1993-12-27 2007-07-31 Hitachi, Ltd. Electric vehicle with secondary battery power storage system
WO1995026588A1 (fr) * 1994-03-28 1995-10-05 Seymour, John, York Mode et appareil de traitement des batteries
EP0813706A1 (fr) * 1995-10-03 1997-12-29 Microchip Technology Inc. Microregisseur a equipement analogique frontal pour la gestion intelligente des batteries
EP0813706A4 (fr) * 1995-10-03 2000-11-15 Microchip Tech Inc Microregisseur a equipement analogique frontal pour la gestion intelligente des batteries
EP0818869A4 (fr) * 1996-01-26 1999-06-02 Yamaha Motor Co Ltd Procede et dispositif de reduction de l'effet de memoire d'une batterie d'accumulateurs
EP0818869A1 (fr) * 1996-01-26 1998-01-14 Yamaha Hatsudoki Kabushiki Kaisha Procede et dispositif de reduction de l'effet de memoire d'une batterie d'accumulateurs
GB2327542A (en) * 1997-07-17 1999-01-27 Nokia Mobile Phones Ltd Battery deep discharge alert
EP1050944A1 (fr) * 1998-10-15 2000-11-08 Yamaha Hatsudoki Kabushiki Kaisha Systeme d'alimentation en puissance pour vehicule electrique
EP1100172A3 (fr) * 1999-11-10 2004-10-13 Makita Corporation Dispositif de charge de batterie
EP2020723A3 (fr) * 2007-07-31 2012-11-21 Yamaha Corporation Chargeur de batterie, unité de batterie secondaire et appareil électrique équipé de celui-ci
US9882248B2 (en) 2014-02-25 2018-01-30 Motorola Solutions, Inc. Method and apparatus for controlling access to one or more memories in a rechargeable battery
US9705351B2 (en) 2015-11-09 2017-07-11 Johnson Industries, Inc. Battery exercising device
US9917465B2 (en) 2015-11-09 2018-03-13 Johnson Industries, Inc. Battery exercising device
US10177589B2 (en) 2015-11-09 2019-01-08 Johnson Industries, Inc. Battery exercising device
US10886765B2 (en) 2015-11-09 2021-01-05 Johnson Industries, Inc. Lighted connector for a battery cable
WO2019246054A1 (fr) * 2018-06-21 2019-12-26 Bose Corporation Décharge à double zone de batteries rechargeables
US11553267B2 (en) 2018-06-21 2023-01-10 Bose Corporation Dual zone discharge of rechargeable batteries

Also Published As

Publication number Publication date
KR900702616A (ko) 1990-12-07
CN1042457A (zh) 1990-05-23
AU4186289A (en) 1990-04-18

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