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Power Strokes
7.3 Tech
What would cause a drain on batteries without running.
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[QUOTE="dsberman94, post: 1024014, member: 12667"] Excuse my stupidity of electrical. Last spring the dealership replaced one battery, the main one on the passenger side. Is it possible that the driver side battery has gone bad and is killing the good battery as it sits. I started it before I left for work, came back 7 hrs later and the horn wouldn't even honk when I pressed the lock button twice, so it's dead again. Just wondering if this is a possibility. I'll be installing the new battery cable tomorrow and trying some of the ideas I've been given by you guys. Kinda hoping it's just a bad battery or gpr. Thanks again guys. Also I'm going to leave it on the charger overnight. Tomorrow I was thinking I would take the charger off, let it sit for a while while I change the battery cables, then leave one positive off and try to start it, if it starts I'll switch the positive cable that is attached and try to start it. Correct me if I'm wrong but this would tell me if either battery was bad and not holding a charge? [/QUOTE]
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What would cause a drain on batteries without running.
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