04554500 is referenced by 41 patents and cites 38 patents.

A battery charging apparatus and method is disclosed. The battery charger includes a programmable two level constant current source having an inhibit input. A clock signal is fed to counting stages which time out after a specified time, during which time the battery is charged with constant current. A temperature sensing circuit detects the temperature of the charging battery and will allow the battery to charge at a reduced rate for a longer time period if the temperature increases above a threshold level. Once the counting stages time out, the battery charger pulse charges the battery at the reduced current level, preferably at a 20% duty cycle, at relatively long intervals to keep the battery from self discharging.

Title
Battery charging apparatus and method
Application Number
6/480746
Publication Number
4554500
Application Date
March 31, 1983
Publication Date
November 19, 1985
Inventor
Thomas J Sokira
Cheshire
CT, US
Agent
Kenyon & Kenyon
Assignee
Anton Bauer
CT, US
IPC
H02J 7/04
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