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Old 03-03-2014, 09:22 AM   #2
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
Yes, a battery maintainer lacks the current output (read amperage) to properly recharge a dead battery. But if left connected to your car after the battery is either recharged or replaced, it would prevent it from happening again.
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