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Two boat deep cycle batteries. I don't know much more. I will have to check them for specifics. I know I need a charge controller. I know I need to do more then 15 watts. I use these batteries to start the engine. I also have another set of two batteries that I use for my stereo. I would like to be able to use the panels to charge them if I want to as well. The stereo batteries are pretty dead by the end of the day. But the engine batteries are still charged but not enough to start the engine. It needs to be 11.84 volts to start.
Is this enough info?
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