Battery capacity test method and apparatus

Details Battery capacity test method and apparatus Battery capacity test method and apparatus

1998-12-02

2000-09-05

Berhane, Adolf Deneke

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

320162, 340636, 324430, H02J 700, G08B 2100

Patent

active

061148385

ABSTRACT:
A battery capacity tester method and apparatus are provided. The battery capacity tester determines the present internal battery impedance by measuring terminal voltages during successive applications of a known load, each load drawing a predetermined current from the battery. This calculated internal battery impedance is used to determine battery capacity based on a precharacterization of the battery that establishes a relationship between the internal battery impedance and the remaining battery capacity.

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