Rapid Charger for Maintenance-Free Batteries
Semi-annual rept. 1 May-31 Dec 1971
GOULD INC MENDOTA HEIGHTS MN GOULD LABS
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The purpose of this program was to evaluate various charging approaches for rapid charging sealed nickel-cadmium, vented nickel-cadmium, and silver zinc-oxide batteries. A programmable charger was to be designed, manufactured and used as a tool during the evaluation of the various charging approaches. To accomplish the objectives, a paper design and breadboard of the circuitry for the programmable charger was initiated at the beginning of the contract. Throughout the first nine months of the program, the charger was designed, breadboard portions were evaluated, and final hardware built. Upon the completion of initial hardware, the system was checked out and problem areas corrected. The charger was designed to have five basic operating modes with each having necessary controls for varying charge current, discharge current, charge frequency, and mode selection. As of the time period covered by this report, no testing of charge approaches has started therefore, the only results which can be stated are that a working programmable charger was designed, fabricated, and tested.
- Electrochemical Energy Storage