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I just want to verify, that a lead-acid battery fully charged, will be
sitting at 2.11 volts per cell. This is 6.33 volts for a 6 volt battery and
12.66 volts for 12 volt batteries. Would this be correct for all lead acid,
whether gell, flooded, and agm?

Thanks,
Brian
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Brian Staffanson wrote:
> I just want to verify, that a lead-acid battery fully charged, will be
> sitting at 2.11 volts per cell. This is 6.33 volts for a 6 volt battery and
> 12.66 volts for 12 volt batteries. Would this be correct for all lead acid,
> whether gell, flooded, and agm?

It is approximately correct; but it varies depending on the type of
cell, construction, temperature, age, etc. 2.11v/cell is on the low end;
that's about right for flooded batteries with antimony-alloy plates.

Sealed AGMs or gels with pure lead plates and higher specific gravity
electrolyte can be as high as 2.18v/cell.

Old batteries, or ones that have lost some electrolyte will be lower.
"How low" just depends on how bad you let them get before giving up on them.
--
Ring the bells that still can ring
Forget the perfect offering
There is a crack in everything
That's how the light gets in -- Leonard Cohen
--
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net

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