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Old 07-15-2013, 05:10 PM
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voltage problems

Hey everyone Im having trouble with my truck for a while now. It started when my battery light went on and i got the alternator tested Advance and Auto Zone both said the alternator was bad. I ended up getting a replacement at Pepboys since they were the only ones that it in stock. After I replaced the alternator, the battery light was still on. I had Napa batteries in it from the previous owner and went through them to get 2 replacement ones. After I installed them the light was still on. But the truck drove fine for about 2 weeks. Now the truck will only start when its jumped and after driving on the highway for a half hour the voltage on the batteries is 10.4v. I went back and had the new alternator tested and it passed.... Does anyone have any idea of what the underlying problem could be?
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Old 07-15-2013, 05:18 PM
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You need batteries. A buddy of mine had the same issue with cheap batteries. They were "rated" correctly, but didn't have the azz that they claimed to have.
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Old 07-16-2013, 04:32 AM
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So Napa Brand batteries is not good then? What do you recommend for a replacement?
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Old 07-16-2013, 06:35 AM
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my COSTCO/Kirkland batteries are doing the job. Get the biggest/cca batteries you can find for the application.
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