I have a small 15w panel & 7 amp controller just for maintaining between trips. Is it possible for it to drain @ night? I have noticed that my batt voltage is less @ night than during the daytime in f...
I only wanted something like a batt tender. Not using solar to completely charge the batt or run thing on just keep the batt from losing charge while sitting in the back yard for long periods of time. There is no usage anytime it is stored. cutoff swith is off. And it is in the + side so there is no drain. Like I said just a maintainer. While camping I don't need it. In full sun it puts out about 18v @ 7amps. Thanks for the response.
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