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It's over charging alot. Regulator stuck open and alternator running full tilt. Should also be able to smell the battery cooking after a long drive.Stick a volt meter across it and bring the rpm's up some and the volt meter will probally get up over 16/17 volts no problem.....needs only 13.8 or so while driving.


Exactly. 13.8 volts is max the regulator should let the alternator charge. Probably cooked that battery too. New regulator definitely, and probably a new battery now.