Can The Alternator Kill The Battery. Changing an alternator is a relatively straightforward job. Check Charging System Output.
Test the alternator. When an alternator goes bad there is a chance it can overcharge the battery. It can if you let the new battery run down.
According to Prestolite electric an alternator producing less than 138 volts of power at idle is not producing enough current to charge the battery fully and needs to be replaced.
Find out how to test an alternator. Can recharging a dead battery kill an alternator. Yes any test they do on a low battery will show it is bad. Can a bad alternator kill a new battery.
