Electrical storage battery charger and conditioner

Details Electrical storage battery charger and conditioner Electrical storage battery charger and conditioner

1994-07-29

1997-02-04

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 35, 320 39, H01M 1044, H01M 1046

Patent

active

056002270

ABSTRACT:
The present invention provides a charging, discharging and conditioning method and apparatus that provides an improved method of breaking in new rechargeable batteries and reconditioning old batteries. Batteries are charged according to the method of the present invention by applying a high frequency charging current to the batteries. The charging current is then removed once the batteries are substantially charged. The resulting charged batteries are thereafter rapidly discharged, using a high discharge current switched on and off at a high frequency. The resulting discharged batteries may then be charged by conventional techniques. A novel battery charger for use in the above described method includes a high frequency switch operably connected in the circuit path of a battery charging socket and a dc power supply. The high frequency switch is preferably driven by a high frequency, substantially rectangular wave signal.

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