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Deep Cycle batteries
I have a couple of 100AH GEL batteries in my caravan and I'm concerned about their health.
I am wondering if anyone knows how to decide when a battery is cactus. I know, of course, that just putting a multimeter across the terminals will give me a voltage and if, after a good charge, it drops below about 12.3 or 12.4 then there is probably a cell on the way out. Are there any other indicators or tests, that a layperson can do?
peter
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