Performance Tool Battery Alternator Tester

The Performance Tool W2989 is an easy-to-use tester that allows you to quickly determine the condition of your car's battery and alternator without complicated procedures or tools. Featuring 3 LED indicators for battery condition and 3 for alternator voltage, this plug-in design simply requires you to plug the tester into your 12V cigarette lighter to get immediate results. This versatile tester is designed to work on any 12 volt system, from cars to trucks, boats, and motorcycles. With its compact size, you can conveniently store the W2989 in your glove box for on-the-go diagnosis and avoid costly breakdowns.