Battery maintenance system

Details Battery maintenance system Battery maintenance system

1989-11-16

1993-03-23

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 31, 320 37, H02J 700

Patent

active

051967790

ABSTRACT:
A battery maintenance system for charging, analyzing, discharging and conditioning of a NiCad battery. The system displays voltage and capacity to determine whether or not a NiCad battery has enough capacity to power equipment for an optimal time period. The system charges the battery using a negative delta voltage method of detecting full charge, while also displaying instantaneous battery voltage. The system also analyzes the battery in a charge, discharge and recharge mode of operation, and during the charge mode the instantaneous voltage is displayed. The discharge mode discharges the battery to one volt per cell while displaying voltage and accumulative capacity alternately. The system also conditions batteries by cycling a battery through three cycles of charging, discharging and a subsequent recharge cycle.

REFERENCES:
patent: 3786343 (1974-01-01), Ehlers
patent: 4302714 (1981-11-01), Yefsky
patent: 4698579 (1987-10-01), Richter et al.
patent: 4709202 (1987-11-01), Koenck et al.

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