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Date:         Mon, 24 Oct 2011 10:07:26 -0700
Reply-To:     David Vickery <david_vickery@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Vickery <david_vickery@YAHOO.COM>
Subject:      Aux Battery Charging
Content-Type: text/plain; charset=iso-8859-1

I am wondering about something.  I have 2 newer matched Walmart batteries and use one for camping stuff and one for starting & radio.  If one battery is topped up and the other is at say 75%, does the fully charged prevent the other one from getting charged? I wouldn't have thought so but I was seeing low voltages on one of both of the batteries while on an extended camping trip (driving a few hours at least every day).   I was thinking that whatever feedback the alternator gets might sees a full charge from the one charged up one?  I use a manual battery connect/disconnect switch if that is relevant.   Also wondering if I see 12.6 volts, does that mean the battery is fully charged and in good shape or do I have to load test it to know for sure?   Thanks, Dave


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