How to Test a Car Battery

Jun 25 , 2020

How to Test a Car Battery

The Family HandymanHow to Replace a Car Battery If you car battery is five years old or older, you should do this soon. It only takes a few minutes and can save you from being stranded due to a dead battery. Learn more about car battery care and make sure you know how to manage a roadside emergency with these tips.

Avoid Driving for Several Days, Then Locate the Battery

Wait at least a few days without driving to test your car battery, unless you’ve already determined it won’t start and suspect battery issues.
- Your car’s alternator charges the battery while the vehicle is running. Testing the battery after not driving for a few days will tell you how well your battery is holding a charge. If it runs down significantly, it probably needs replacement.
Lift your vehicle’s hood when you’re ready to test the battery, if that’s where it’s housed. If not, find it elsewhere in the vehicle.

Locate the Battery