The 12-volt car battery isn't exactly cutting-edge technology, after all. The tester can handle 12V as well as 6V batteries, and is able to add up to a 100 amp load test to a 12-volt battery.

Cheap battery load testers might only work with 12-volt batteries, but many models work with 6-volt and 12-volt, or 12-volt and 24-volt.

Our favorite, the Foxwell Automotive Battery Load Tester, gives rapid reporting on a wide range of 12-volt and 24-volt batteries, alternators, and cranking systems, and it’s also compatible with ...

Cheap battery load testers might only work with 12-volt batteries, but many models work with 6-volt and 12-volt, or 12-volt and 24-volt. You’ll want to check the type of battery they work with ...

Cheap battery load testers might only work with 12-volt batteries, but many models work with 6-volt and 12-volt, or 12-volt and 24-volt. You’ll want to check the type of battery they work with ...