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Reply To: car battery question

#993603
vincenzo masiello
vincenzo masiello
Participant

I personally experimented with that for a long time many years ago when i was a field tech and have to leave cars in long term airport lots. More than two weeks will kill a car battery unless a miracle happens. These days they sell little solar squares that you can just throw at your dash (if you pick a spot where there is sun) that works as a trickle charger when connected to a lighter outlet. Otherwise, carry a fully charged lithium battery pack (10-20 Ah’a) with a USB to about 12.5 volt converter to feed the car battery with a few milliamp’s continuously and keep the car topped off until you come back to use it again

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