Quote:
Originally Posted by ilikeike
I put together a couple of multi battery wakeboard boat stereo systems. Keeping it simple I just used a starter solenoid.
Key on engine running solenoid closed all batteries connected and charging.
Key off or acc. Solenoid open, batteries isolated.
Simple and works, for years.
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I would but my research led me to a few articles that point out that the AGM batteries require a DC-DC isolator to charge to 100%. Apparently they otherwise only charge to 80% with an basic switch. Same thing with 120v chargers. You should use one designed for AGM batteries verses wet batteries.