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Re: [Shop-talk] Battery minders?

To: "'shop-talk@autox.team.net'" <Shop-talk@autox.team.net>
Subject: Re: [Shop-talk] Battery minders?
From: "Randall" <tr3driver@ca.rr.com>
Date: Tue, 14 Feb 2012 10:37:23 -0800
> I don't think AGM batteries become sulfated, at least not in the sense
> that a lead-acid battery will.

They can (AGM is lead-acid, just with the acid held in a fiberglass mat);
but it's a much less common failure mode.  As Doug said, they usually fail
by loss of electrolyte and no charger can fix that.  Wet lead-acid cells
(like conventional car batteries) generally have a surplus of electrolyte
instead of just barely enough, so they are less sensitive to loss.

-- Randall 
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