I have a 2001 Jeep Grand Cherokee Laredo, and I can't get the battery to keep a charge.
Asked by rachaeld123 Jun 22, 2014 at 12:45 PM about the 2001 Jeep Grand Cherokee
Question type: Maintenance & Repair
I've had the battery tested, and it is
fine. The alternator has been tested
too, and it is running low but should
still be fine. I had the terminals
replaced, and there isn't corrosion on
the battery.
7 Answers
Alternator has to be putting out around 14.5 volts to keep a battery fully charged.
rachaeld123 answered 10 years ago
The mechanic said it was putting out 13.8, would that small of a difference cause my battery to discharge rapidly?
That's mighty close. Does it discharge over night or while you are driving?
www.youtube.com/watch?v=zdIKNnwEjIs -- check this out. Shows how to test for parasitic draw. You probably have something staying on draining the battery over night.
Do you leave a cell phone charger hooked up or any other after market item plugged into cig lighter over night? If so that's probably your drain.
rachaeld123 answered 10 years ago
Thanks, I'll definitely try that out! Nope, I always unplug my phone charger.
