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Old 08-31-2008
btrayfors btrayfors is offline
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Otaga,

Good advice. Charge them separately or, better, use a Xantrex EchoCharge or a Balmar DuoCharge device (NOT a battery combiner or an isolator, etc.).

Sorry, halekai36, while I very much value your expertise and thoughts on many things, I have to disagree on your philosophy re: starting batteries.

The preferred setup is:

1. ONE large house bank, charged by every onboard device (battery charger, alternator, solar, wind, generator, etc.);

2. ONE starting battery, sized for your engine and NOT a deep-cycle battery; and

3. an EchoCharge or DuoCharge device, as per above.

This gives you a near bullet-proof, very efficient setup, and provides all the safety and redundancy you need.

Switches, fuses, breakers, etc. are a related but separate topic.

Bill
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