Your car’s battery is essential for powering everything from starting the engine to running your headlights and electronics.

Fortunately, this best-selling Ancel BA101 car battery tester can get you out of a jam ... the Ancel BA101 can put a controlled load on the battery to assess its ability to maintain voltage ...

Load Test: If the voltage is low ... Starting the Engine: The primary function of a car battery is to provide the initial electrical power needed to start the engine. When you turn the key ...