How To Test If Your Car Battery Is Good. Ad View the Top 5 Auto Battery Testing. Perform a load test.
Leave the lights on for about 15 minutes. A reading above 125 V is an indication of a good battery while a 123 V charge means that your battery is 75 charged. See Offer Details Today.
Suspect your car battery is losing power pay attention to warning signs.
Place the red lead on the positive battery. With the lights still on crank the engine and see what happens. Free 2-Day Shipping Free Returns. Place the red lead on the positive battery.
