12v Solar Panel

Lynn Said:

Is it safe to have 12v battery charged with solar panel inside car?

We Answered:

I'd worry more about overcharging that tiny battery and killing it. Check the manufacturer's direction, but one rule of thumb is max charge rate s 1/10 the capacity, which in this case is 0.13 amps or 130 mA. So 130 mA for 10 hours should recharge it if it started out flat. Any longer time or higher current will overcharge it and cause damage.

If your charge controller is good enough and sized for that battery, you should be ok.

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