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Free shipping When you spend $149+

Electrical - Battery Isolators

At Royale-Seas, we have the best products and a wide variety; that is why we also offer battery isolators and automatic charging relays. These come to guarantee that all batteries receive current to charge, but isolate the batteries when they discharge so that a weak battery does not consume a fully charged battery. In this way, a depleted booster battery will not deprive the starter battery of the starting power needed to start the engine.