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Old 03-17-2011
scottyt scottyt is offline
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its simple if just keeping charged you need about 10 watts per 100 amps of battery. if you need to charge the battery after use you need about 25 to 25 watts per 100 amps, which will charge the battery over a week.

if you go over the 10 watts per 100 amps you need a charge controller.
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