Battery charger

Details Battery charger Battery charger

2005-08-16

2005-08-16

Sparks, Donald (Department: 2187)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

C320S134000

Reexamination Certificate

active

06930466

ABSTRACT:
In an embodiment of the present invention, a charge voltage is coupled between the positive and negative terminals of a rechargeable battery, to charge the battery. The charge voltage is disconnected for a predetermined relax time period. A rechargeable battery voltage is present between the positive and negative terminals of the battery during the relax time. The battery voltage is measured and compared to a predetermined target voltage that is associated with a sample time. The comparison is then used to determine if the battery is charged.

REFERENCES:
patent: 5115182 (1992-05-01), Ehmke et al.
patent: 6285166 (2001-09-01), Cannon

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