4 and 3 series battery stack voltage power source selector

Details 4 and 3 series battery stack voltage power source selector 4 and 3 series battery stack voltage power source selector

2005-03-08

2005-03-08

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

Reexamination Certificate

active

06864666

ABSTRACT:
A method and system for selectively discharging a dual battery system, which includes a primary smart battery and a secondary smart battery, the dual battery system being operable to provide electrical energy to an information handling system device. The secondary smart battery having a sufficient amount of the electrical energy is housed in a removable media of the device and is selectively discharged in response to a loss of an AC power source providing the electrical energy to the device. The primary smart battery having a sufficient amount of the electrical energy is then discharged in response to the discharging of the secondary smart battery to a threshold level. The primary smart battery continues to provide the electrical energy upon removal of the secondary smart battery from the removable media.

REFERENCES:
patent: 5504907 (1996-04-01), Stewart et al.
patent: 5519261 (1996-05-01), Stewart
patent: 5545935 (1996-08-01), Stewart
patent: 5576609 (1996-11-01), Brown et al.
patent: 5592394 (1997-01-01), Wiscombe
patent: 5818200 (1998-10-01), Cummings et al.
patent: 6194867 (2001-02-01), Cummings et al.

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