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Old 19-07-2012, 11:09   #16
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Re: Advice on adding starter battery

Quote:
Originally Posted by rebel heart View Post
John;

It's an issue (over charging the starting battery), but not that big of a deal to me. The house bank costs nearly 10x the single starter, the house can start the engine if need be, and it's just filling up water on a every-few-months schedule that I'm on regardless.
One thing to note, when using battery combiners and overcharging the start bats.

The number one killer of bats., right behind chronic under-charging = sulfated.

Is chronic over-charging, this results in positive grid plate corrosion, which sloughs off and will eventually causes a dead short circuit in the battery. Positive grid plate corrosion comes from the high voltage, and has nothing to do with the acceptance of current.

Lloyd
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Old 24-01-2013, 09:17   #17
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Re: Advice on Adding Starter Battery

I am in this same situation now. I can double my house battery bank by adding a starter battery. Currently the boat is wired with two batteries one hooked up to (1) and the other to (2) on the switch. My thought is to wire the two existing batteries together and then to add a house battery as shown in Post #3. My question is what is the purpose of the On/Off switch in line for the starter battery. I'm probably missing something.
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Between us there was, as I have already said somewhere, the bond of the sea. Besides holding our hearts together through long periods of separation, it had the effect of making us tolerant of each other's yarns -- and even convictions. Heart of Darkness
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Old 24-01-2013, 10:56   #18
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Re: Advice on Adding Starter Battery

Quote:
Originally Posted by Charlie View Post
I am in this same situation now. I can double my house battery bank by adding a starter battery. Currently the boat is wired with two batteries one hooked up to (1) and the other to (2) on the switch. My thought is to wire the two existing batteries together and then to add a house battery as shown in Post #3. My question is what is the purpose of the On/Off switch in line for the starter battery. I'm probably missing something.
Charlie,

See my PM.

Bill
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Old 11-08-2015, 10:36   #19
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Re: Advice on Adding Starter Battery

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Originally Posted by btrayfors View Post
Charlie,

See my PM.

Bill
......................

So what was the answer to "what is the purpose of the On/Off switch in line for the starter battery"?

I assume it's for added isolation and to keep it out of the mix when the starting battery is dead(?)

thanks

Mark
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