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Old 24-10-2020, 19:53   #1
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Conditioning batteries?

So, I was at my boat, today.

It's sitting in a boatyard, waiting for spring.

I wanted to check on the tarp, see if the guys who'd winterized the engine had put everything away correctly, and I wanted to pack up the sails and cushions and bring them home, so I could store them someplace dry.

And while I was there I got to talking to one of the old guys and he said he always removed his lead-acid batteries and kept them on a battery conditioner, over the winter.

I have lead-acid batteries myself, one 12v starter battery and four 12v batteries for the house bank.

So I'm wondering if it's a good idea. Anyone have any opinions?

Any sources of information?
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Old 24-10-2020, 20:17   #2
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Re: Conditioning batteries?

Lead acid batteries and for that matter any battery needs to b on a trickle charger if left for any time in a no use situation. Much better if u can take them out and put them in a heated environment. I have learned this from my aviation experience for over 50 years.
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Old 24-10-2020, 20:55   #3
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Re: Conditioning batteries?

Here’s a white paper from Trojan on LA battery storage. And a bit more from Trojan.

The biggest point; make sure batteries are at 100% SoC before storage, and don’t let them drop below 70% (remember, LA can self-discharge at 3-5%/month at winter temperatures).
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Old 24-10-2020, 21:05   #4
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Re: Conditioning batteries?

Quote:
Originally Posted by cropduster View Post
Lead acid batteries and for that matter any battery needs to b on a trickle charger if left for any time in a no use situation. Much better if u can take them out and put them in a heated environment. I have learned this from my aviation experience for over 50 years.
Actually not correct as a blanket statement.
Fla yes but lifepo4 definately not they prefer to be stored between 30 and 60 % . Keeping them on a trickle charger will kill them as upposed to saving a flooded lead acid.
Must make that distinction.
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Old 24-10-2020, 21:35   #5
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Re: Conditioning batteries?

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Originally Posted by newhaul View Post
Actually not correct as a blanket statement.
Fla yes but lifepo4 definately not they prefer to be stored between 30 and 60 % . Keeping them on a trickle charger will kill them as upposed to saving a flooded lead acid.
Must make that distinction.
Sweet!!! How do I switch to LifePo4??? I have two (2) Lifeline GPL-27T batteries and wouldn't mind switching to LifePo4 since I've been hearing sooooo many good things about them
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Old 24-10-2020, 21:47   #6
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Re: Conditioning batteries?

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Originally Posted by Cool Hand Luke View Post
Sweet!!! How do I switch to LifePo4??? I have two (2) Lifeline GPL-27T batteries and wouldn't mind switching to LifePo4 since I've been hearing sooooo many good things about them
Pm me
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