Q&A

 Journeyman

hi,
Make sure your fan belt is still on your vehicle. If it's not there, your alternator isn't charging your battery at all.
If the belt is there, it could be slipping which would cause the alternator to not be charging properly. If you check the alternator with a digital voltage meter with the car running, it must read 13.6 volts or higher (up to 14.2 volts) for the alternator to be charging properly.
If the voltage meter says anything under 13.6 volts, say 13 volts, then there is still a problem even though it is still charging,it's not charging properly.

good luck