Charging a Dead Battery - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
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post #1 of 4 (permalink) Old Mar 6th, 04, 01:09 AM Thread Starter
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Kevin
 
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Once a battery goes completely dead, can it ever maintain a FULL charge again? The paint shop left the ignition switch on for a long time. Now my six mounth old Die Hard is flatline. The guy says that after charging it, "It will be as good as new". My luck with batteries says different. I'm thinking he owes me a new one. Kevin
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post #2 of 4 (permalink) Old Mar 6th, 04, 02:42 PM
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If it was dead AND it got very cold, it could freeze the battery fluid and cause damage inside.

I'd charge it up and have it load tested. If it fails the test, maybe the shop will pay what the battery warranty does not cover.
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post #3 of 4 (permalink) Old Mar 6th, 04, 04:20 PM
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Lead acid batteries shouldn't experience any problem being fully discharged but it probably didn't do it any good. David Pozzi brings up a very good point.

NiCd and other multi-cell packs can be damaged though. Rarely are all the cells 100% equal in strength. During a full discharge, the stronger cells can reverse charge the weaker ones causing permanant damage. To my knowledge, lead acid batteries aren't affected by that.

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post #4 of 4 (permalink) Old Mar 8th, 04, 09:16 AM
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If battery is 6 months old, Sears should exchange it free of charge (money).

Yes, a battery can be slowly charged, but, will never be 100% as David & dnult suggest.

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