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Perko Switch with automatic charging relay


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I finally got around to buying a Blue Sea automatic charging relay. Found the 7610 on ebay for $75. I already have a Perko switch which is the model that allows for Bat 1, Bat 2, or All to be selected. I happened to notice that there was a different switch by Perko for use with the relay that had an OFF, ON, or Combine function. I was just wondering if I need to buy that switch or if I can use the one I have.


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So when running the boat I just leave it on "All" so that they both charge? This doesn't defeat the purpose of the automatic relay does it? I was curious why the other switch had an ON, OFF and Combine mode. The wiring looks the same in both cases. Run bat A to term A and bat B to term B. Then the starter to the Com term. Then I plan on running the stere, amp and Ballast pumps directly to the term B side of the Perko switch. Negative ground on the relay to the negative term of one battery.

Just thinking this through here for the first time.


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Just spoke with Paul over at Bakes. It turns out you can not just add a Blue Sea 7610 relay to your system if you have an existing Perko dual battery switch. I have to use the Blue Sea 5511 e series switch. Wired differently through the switch. It is always great to have a source like Bake's to rely on.

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Who or what is Bakes? I have a perko switch wiring question.

The Perko switch has one terminal for the Starter positive cable. What if I have a direct positive coming from the Starter, Altenator and Accesories? Do I attach all 3 of those positive cables to the same terminal on the perko switch?

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