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H3 dead batteries

5 messages,  Last post on Nov 08, 2009 at 6:59 PM

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What is this discussion about? HUMMER H1, HUMMER H2, HUMMER H3, Electrical, SUV

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#1 of 5 H3 dead batteries by dfsh3 Feb 25, 2008 (3:51 pm)
have 2007 H3 purchased new in august now has 4800 mi. have had 4 dead batteries and rwice towed to GM dealer. the last time it would not start was 15 minutes afterthe dealer test drove it with a new battery..after keeping truck another 3 days they could not explain what happens as everything was ok on computer. only problem is it wont start dead battery..GM had no answers except replace battery..ANY IDEAS??? doug Replies to this message: tidester (Feb 25, 2008 4:22 pm) mac24 (Feb 26, 2008 6:02 am) brairblades (Nov 08, 2009 6:59 pm)
#2 of 5 Re: H3 dead batteries [dfsh3] by tidester HOST Feb 25, 2008 (4:22 pm)
Replying to: dfsh3 (Feb 25, 2008 3:51 pm) There are three possibilities: (a) Your electrical system is being short-circuited, (b) your electrical contacts are defective or (c) you're the one in million who just happened to get four batteries in a row that have manufacturing defects.   The fact that one of them discharged in 15 minutes has me puzzled. For a battery to discharge that quickly without some telltale signs of electrical shorting (smoking, sparking, excessive heat etc.) suggests that the problem is not a short circuit. I would check out all the electrical contacts if only to rule out possibility (b). As for the one in a million chance, it's actually not quite that unlikely to happen if all those batteries were made in the same factory with the same lot number which is entirely possible.   tidester, host SUVs and Smart Shopper
#3 of 5 Re: H3 dead batteries [dfsh3] by mac24 Feb 26, 2008 (6:02 am)
Replying to: dfsh3 (Feb 25, 2008 3:51 pm) While Tidester is correct, you should know that you are not alone. Many H3s are having this problem. I don't know what the solution will finally be, but at the moment it appears that having a battery size that's on the bleeding edge of minimal isn't helping any. Replies to this message: brairblades (Nov 08, 2009 6:59 pm)
#5 of 5 Re: H3 dead batteries [mac24] by brairblades Nov 08, 2009 (6:59 pm)
Replying to: mac24 (Feb 26, 2008 6:02 am) Know what you mean, I have a 2006 H3 and I have to replace the battery every year. Got to take it in tomorrow...it went dead today. No sense tring to re-charge...it won't...Never have found out the problem...just the barreries I quess.

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