Can I use my alternator to recharge a discharged battery? No! When installing an alternator,
the battery should be fully recharged before vehicle use. In many cases, depending upon how
thoroughly discharged the battery is, it can take 4-8 hours. Most technicians and DIYers don't
want to wait that long so they just get the vehicle running, and figure that by driving the
car around the alternator will charge the battery. In some cases with weather extremes the
battery never gets fully charged, and in all cases the alternator is being overly stressed
asking it to do a job it was not designed to do. This leads to premature failure.
