Can I Test My Battery When the Car is Running?

Normally, you test your battery while the car is not running. However, you can test the car when it is running. Indeed, there are times when testing a battery when a car is running is essential. If you are losing voltage while driving, the issue may be the alternator or the battery. The easiest way to find out which item is the culprit is to test the battery while it is running.

After you finish with your battery test while the car is at rest, leave your voltmeter connected to the battery. Start your vehicle and check the voltmeter. If the voltage is higher than 14.7 volts, then you are overcharging your battery and contributing toward battery failure. If the voltage measures less than 13.7 volts, then your alternator is not running properly.

Have a full-load test run in our service center at Acura of the Rio Grande Valley.

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