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Old 04-01-2009, 06:43 PM   #1
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1971 23' Safari
Groveport , Ohio
Join Date: Mar 2006
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3rd try battery ? Do I have the worm

My, I'll make it short this time. I kept my 27 series lifeline in all winter and kept a 12.84-12.94 charge with a disconnect switch. I would plug in to shore power when spending time pumping watts through the sound system thinking about the first trip of spring. Should I deplete the battery charge from time to time and recharge to get better battery life. Robert

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Old 04-01-2009, 09:28 PM   #2
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If it was NiCd then a deplete recharge might be a good thing, but a lead acid, such as an AGM doesn't like it.

It is a good idea to 'exercise' the battery regularly but only in taking it down to about 12.2 to 12.4 volts before a proper recharge.

The AGM has a low internal discharge rate so it can survive a few months without a maintenance charge. Letting one sit, though, is not the optimum for longest life. You should use a battery maintainer that will keep a proper float voltage and provide some desulfation technique during storage.
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