The company's battery and alternator tester are compact and easy to read, with an LED display that indicates the condition of a 12-volt battery.

The company's battery and alternator tester are compact and easy to read, with an LED display that indicates the condition of a 12-volt battery.

When the car is running, the alternator should keep battery voltage between 13.5 and 14.5 volts to keep your car from dying. When your car is off, ...

Learn why your car battery struggles in winter and how to prevent cold-weather breakdowns with expert tips from TEPA and ...

Not the battery. Or alternator. What’s up with this Dodge Ram? “It does not have a draw on the battery. ... @royaltyautoservice Another example of how you test, not guess!