A multimeter will check the battery voltage. If it’s higher than the rated voltage, your battery capacity is okay. But if it’s lower, you’ll have to replace your battery. Testing without a multimeter ...

A car battery is a crucial component that plays ... Cold Cranking Amps (CCA) Test: Some multimeters or specialized testers can measure the CCA of the battery. Check the battery's CCA rating ...

How long should a new car battery last? A new car battery should last ... (free of corrosion), check your battery’s charge levels, and regularly test your battery. Using a multimeter (from $10 to buy) ...

Before you start, make sure you have the necessary tools. To test your car battery at home, you’ll need a digital multimeter ...