What Voltage Should A Car Battery Be Replaced. According to NAPA Auto Parts a healthy car battery shows 124-127 volts. Test the battery voltage.
I was looking for some indication to catch a battery before failure on the road sets in. Answer 1 of 4. Car battery be 2 hours after driving the car 8 miles.
20 tedjohnson Aug 18 2013.
Test the battery voltage. Its not a matter of voltage but of capacity and power output. With the engine off you should get a reading of 126 volts. Ad Need a New Battery.
