Dodge ram 2500 has a low battery voltage even with a new battery

Asked by Chrismar Jul 12, 2014 at 09:01 PM about the Dodge RAM

Question type: Maintenance & Repair

Truck is having a low battery voltage even with a new battery on it. What causes this
problem? Can somebody help please?

6 Answers
199,785

dandyoun answered 9 years ago

Tighten and clean all battery connections. Test output voltage of your alternator. It should be putting out 14.5 or so volts. If it's not then it's probably going to need to be replaced.

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199,785

dandyoun answered 9 years ago

Also what year model is your truck? If older than about 2002 or so might want to tighten and clean the negative battery cable on the frame and motor. If they loose or dirty they can cause the same issue.

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175

Kraisor answered 9 years ago

Beyond cleaning the battery cable connections, and replacing the battery cables, your alternator might be going bad.

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90

Lopez10101010 answered 5 years ago

I just changed the battery and alternator on my 2005 ram 1500 and it has a code of low power voltage and ac started to blow hot air and has check gages light on

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20

JOHNNY7j answered 3 years ago

I dunno why but mines brand new and shows low voltage every dodge I know shows low voltage

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10

Truth answered about a year ago

I get 14v consistently before and after new batteries. Only 43400 miles on truck hoping this is normal

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