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

Asked by 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?

3 Answers

108,605

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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108,605

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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85

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

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