Most places I fly there is no AC power source. I'm looking at purchasing a good car or marine battery for my 12v source to hook my charger to.(Not my car and end up stranded with dead battery) Is there a formula to figure how many 4s batteries I may be able to charge when in the field from that car/marine battery?? Should I look for a battery with the highest amp rating?
Thanks, Lon
Thanks, Lon
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