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Old 08-28-2013
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Re: Battery Switch

You can have either two batteries (or banks of batteries) - each one capable of running your house 12v systems and starting the engine; or have one battery for the house and one battery dedicated for starting the engine. Deep discharge batteries are preferable for house needs and starting batteries are preferable for starting the engine.

I recently had two identical large deep cycle batteries on my boat - one was battery 1 and the other was battery 2. Couple of years ago, I wired these two batteries togther, effectively making one double-sized battery and installed another dedicated starter battery.
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