To load test a car battery, use a load tester suited for your battery’s 12V or 24V system and cold cranking amps (CCA). A load test helps determine if the battery can perform under pressure, preventing potential failures and extending your vehicle’s electrical system life.
Using the ANCEL BST600 battery tester, connect it to the battery terminals to check the voltage. A healthy battery reads around 12.6 volts. If below 12 volts, it may need charging or replacement.