It's a charger, the only thing I don't like about it is that the whole system has to be plugged into the wall, not an extension cord. one cable goes to the truck and the whole device is under the hood of the truck or under the hood of the ATV. I have to leave the cables uncapped that don't have caps on the quad or my truck isn't very secure maybe a little 16 here and there on the actual final price of the products but so far I'm very happy with it
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