Portable computer battery recovery and reconditioning mechanism

Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging

Reexamination Certificate

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Details

C320S137000

Reexamination Certificate

active

07570019

ABSTRACT:
For recovering and reconditioning a smart battery, a functionally dead condition of the battery is detected. The battery includes an electronics unit. The electronics unit is operable for controlling an operating condition of the battery. In the functionally dead condition of the battery, the electronics unit becomes inoperable. While in this condition, a current limited trickle charge is provided to the battery such that the path of the trickle charge bypasses the inoperable electronics unit. Upon the battery receiving a sufficient amount of charge, the electronics unit regains control. The electronics unit reconditions the battery by recharging it to a fully charged state.

REFERENCES:
patent: 5568039 (1996-10-01), Fernandez
patent: 5818200 (1998-10-01), Cummings et al.
patent: 6144186 (2000-11-01), Thandiwe et al.
patent: 6262562 (2001-07-01), Cummings et al.
patent: 7039150 (2006-05-01), Drori
patent: 2003/0117112 (2003-06-01), Chen et al.
patent: 2003/0169019 (2003-09-01), Oosaki
patent: 2003/0231002 (2003-12-01), Johnson

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