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FishHog
Member
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# Posted: 13 Jul 2025 07:30am
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Going strictly by voltage I shoot for 13.1 to 13.2 for storage and if it’s long term I start at 13.2. Tricky with voltage though. Make sure it’s a resting voltage
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paulz
Member
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# Posted: 13 Jul 2025 12:57pm
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Sounds good, I’ll juice em up. I think they say better to stay shy of 100%.
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gcrank1
Member
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# Posted: 13 Jul 2025 04:59pm
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That is about where Ive stored my 2 overwinter here, about 4 mo.
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FishHog
Member
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# Posted: 13 Jul 2025 07:43pm
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Quoting: paulz Sounds good, I’ll juice em up. I think they say better to stay shy of 100%.
I shoot for 50-60%. But if it’s long term like 4 months over winter I’ll start 60ish. A very accurate volt meter would help but “ish” is probably good enough. But yes not 100%
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gcrank1
Member
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# Posted: 26 Jul 2025 09:09pm
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Just found out Fri. my #1 bat's LVD is 10.5v, I turned everything off Except the inverter on the prev trip there, it sucked it down from the 13.0 we left at.
Fortunately we had the #2 in the wings so all was good. Today I put #1 on the Meanwell PS and took it to 13.2 and stopped, that seems like a good place to leave it in the cool basement for a while then top it up later.
Iirc we had #1 there since mid April/early May? and ran anything 120 whenever we wanted. It was a good long run for a 12v/100ah LFP.
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paulz
Member
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# Posted: 27 Jul 2025 08:57am
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Quoting: gcrank1 Today I put #1 on the Meanwell PS and took it to 13.2
Word of warning. One of my Meanwells just died. No light, no fan, no output. Luckily I still have a spare. Took the top off, fuse ok, AC power to that. Saw some advice online, possible diode, coil, blah blah, better to just pitch it. No idea what a 40 amp Lfp charger would cost new.
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