05606242 is referenced by 353 patents and cites 51 patents.

A smart battery which provides electrical power and which reports predefined battery parameters to an external device having a power management system, includes: at least one rechargeable cell connected to a pair of terminals to provide electrical power to an external device during a discharge mode and to receive electrical power during a charge mode, as provided or determined by the remote device; a data bus for reporting predefined battery identification and charge parameters to the external device; analog devices for generating analog signals representative of battery voltage and current at said terminals, and an analog signal representative of battery temperature at said cell; a hybrid integrated circuit (IC) having a microprocessor for receiving the analog signals and converting them to digital signals representative of battery voltage, current and temperature, and calculating actual charge parameters over time from the digital signals, the calculations including one calculation according to the following algorithm;

Title
Smart battery algorithm for reporting battery parameters to an external device
Application Number
8/318004
Publication Number
5606242
Application Date
October 4, 1994
Publication Date
February 25, 1997
Inventor
Daniel D Friel
Woburn
MA, US
Louis W Hruska
Northboro
MA, US
Alwyn H Taylor
Wellesley Hills
MA, US
Matthew P Hull
Jamestown
RI, US
Agent
Scully Scott Murphy & Presser
Assignee
Duracell
CT, US
IPC
H02J 7/04
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