05633573 is referenced by 114 patents and cites 32 patents.

A battery pack and a method of operating a battery system. The battery pack includes a rechargeable battery and a processor for monitoring the battery during charging and discharging. The processor receives data values representing the battery voltage, temperature and current, and the processor performs a series of calculations using those data values. The processor has normal, standby and sleep modes. In the normal mode, the processor performs the series of calculations at first regular cycles, and in the standby mode, the processor performs the series of calculations at second regular cycles, which are longer than the first cycles. Preferably, the processor enters the standby mode when the battery current falls below a predetermined current level, and the processor enters the sleep mode when the battery voltage falls below a first predetermined voltage level. Also, the processor exits the sleep mode when the battery voltage rises above a second predetermined voltage level higher than the first predetermined voltage level.

Title
Battery pack having a processor controlled battery operating system
Application Number
8/336945
Publication Number
5633573
Application Date
November 10, 1994
Publication Date
May 27, 1997
Inventor
Daniel D Friel
Woburn
MA, US
Alwyn H Taylor
Wellesley Hills
MA, US
Matthew P Hull
Jamestown
RI, US
Louis W Hruska
Northboro
MA, US
Elmar Zeising
Haindlfing
DE
Rudi Wieczorek
Munich
DE
Duong van Phuoc
Eching
DE
Agent
Scully Scott Murphy & Presser
Assignee
Duracell
MA, US
IPC
H01J 7/00
H01M 10/44
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