Forum Discussion
pnichols
Jul 04, 2016Explorer II
Or you can save your time/energy and just go with a ready-made charger from the marine world that will charge a 12V battery from a 12V battery - just hook the battery in the vehicle to the battery(ies) in the RV with one of these in between:
https://www.amazon.com/Battery-Charger-12V-24V-Current-Limiting/dp/B008BL6MO8
https://www.amazon.com/Battery-Charger-12V-24V-Current-Limiting/dp/B008BL6MO8
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