Thunderbolt 1.5 watt solar charger
Hi: Just bought a Thunderbolt 1.5 watt solar charger for my RV from Harbor Freight. The box and ads suggest that you can simply plug into cigarette lighter. The instructions, however, say that you ...
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1.5 will not maintain much. If you have anything more than a clock drawing the 12v, you will still kill the battery. Even if you only have a clock and it is cloudy, you will drain the battery. More than a month and you battery will be needing replacement.
