First check the battery cable connections to be sure they're clean and tight. Next, use an inexpensive digital voltmeter to measure the battery voltage. If you find around 11 volts, it has a shorted cell and must be replaced. If you find closer to 12.2 volts, it's okay but discharged. Charge it for an hour at the slowest rate, then try to start the engine. Once it's running, measure the battery voltage again. It must be between 13.75 and 14.75 volts. If it is low, we'll have to test the alternator.
Tuesday, November 13th, 2012 AT 11:00 PM