12.3 is low Do easy stuff first go to auto parts store they have machine to load test battery, if you have a bad cell in batt It will give you fits. New bat can be bad. If alternator is charging bad batt you just waste time my car has been sitting all week . I have 12.56 volts. 13.2 is normal. Kiss > >>kept it simple. It’s a 12 volt system if batt goes below 12 v. Stuff won’t work right. So I just checked my car running it’s charging at 14.61. Or go back to who put alt in have them check operation
Last edited by Jv01jv01; 01-10-2019 at 03:38 AM.
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