Connect another battery for increased fishing time, power all of your electronics all day with the worry of draining your starting battery. This unique system allows you to quickly add another battery to your house or starting battery. Dual Parallel Battery Connection for Boats needed to create more power for running your electronics, live wells, bilge pumps, power poles and more starting battery for Large outboards, battery's draw power from both battery's and will charge together off alternator or charger at same time.
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