Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1994-08-18
1996-04-23
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 22, 320 39, H01M 1044
Patent
active
055106935
ABSTRACT:
The battery charging process of the present invention uses three charging rates. The initial charge rate of C charges the battery (101) until the battery's temperature reaches a certain level (102). The charger then changes to a trickle charge rate of C/8 to finish charging the battery (103). Next, the charger reduces the charging rate to C/40 to maintain the battery's charge (105). The process then monitors the battery's voltage. If the voltage signal has a slope that indicates the battery is being used by an attached device (106), the charging rate is increased to the trickle charge rate to simultaneously power the device and charge the battery.
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Dapp Robert
Halling Dale B.
Kordich Donald C.
Motorola Inc.
Wong Peter S.
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