Daily Facts
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Maximizing Battery Performance

January 21st Fact-of-the-Day

The most common reason for poor rechargeable battery performance is tarnished contacts. Batteries may not reach full charge if their contacts or the connectors that connect to them are tarnished, because tarnished contact resistance reduces charging current and battery voltage during charging. Even if batteries do eventually reach full charge, tarnished contact resistance will be in series with the discharge load. That will reduce the voltage available to the equipment being powered at all times during the discharge cycle and will cause the operational failure voltage to be reached sooner. Tarnished contacts can be cleaned with an eraser or with alcohol on a cotton swab if adjacent components will not be damaged by alcohol. Be sure that fragments of the eraser or cotton do not remain on the contracts after cleaning. ©2005 Martek International All rights reserved.

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