- Feb 21, 2008
On link battery says 12.3-12.5 and just kinda bounces between there. I thought a normal charging battery when car running was between about 13.5-14.5. Battery is brand new and I had the alternator off the car and had advanced auto test it and they said it was fine. Do you think there is a chance that there machine doesn't give enough load and the alt is actually bad? Would this be a sign of the alt going out? Thanks.