State-of-charge-measurable batteries

Details State-of-charge-measurable batteries State-of-charge-measurable batteries

1998-10-28

2000-01-11

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320110, 320125, H02J 700, H01M 1034, G01N 27416

Patent

active

060140143

ABSTRACT:
A storage device allows the state of charge of a main battery to be determined by measuring the state of charge of a dummy battery. The storage device may provide power to an electronic appliance such as a portable computer. The main and dummy batteries each have a storage capacity and a self-discharge rate. The storage capacity of the dummy battery is less than the storage capacity of the main battery; for example, the storage capacity of the dummy battery may be only about 1% of that of the main battery. The main and dummy batteries are configured so that the self-discharge rates thereof are substantially equal. The storage device also includes discharge circuitry which is configured so that the dummy battery discharges at a rate faster than the main battery when a load is connected to and drawing current from the main battery.

REFERENCES:
patent: 5625291 (1997-04-01), Brink et al.
patent: 5633573 (1997-05-01), VanPhouc et al.
patent: 5733674 (1998-03-01), Law et al.
patent: 5850134 (1998-12-01), Oh et al.

Affiliated with

Also associated with

Rating

State-of-charge-measurable batteries does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with State-of-charge-measurable batteries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and State-of-charge-measurable batteries will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1464873