Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1994-03-09
1996-12-24
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
H02T 700
Patent
active
055876455
ABSTRACT:
A battery charger having a night light is described for use with a cordless telephone. The battery charger is energized by being plugged into a standard AC outlet and includes a cradle for receiving a cordless telephone handset having rechargeable batteries. The battery charger includes a phototransistor for detecting the level of light impinging on the battery charger and a lamp for providing illumination. When AC power is cut off and the phototransistor detects that the light level is below a predetermined level, the lamp is powered by the handset battery to provide illumination and to enable a user to locate the handset during low light conditions while it is being charged.
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Lang Michael
Sciammarella Eduardo
Miller Jerry A.
Musacchio Pasquale
Shin K.
Sony Corporation
Sony Electronics Inc.
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