The Battery Tender® battery tester is the easiest way to check your battery's health! This meter is easy to use and read, and works with 6 Volt and 12 Volt batteries for cars, trucks, SUVs, RVs, motorcycles, boats, ATVs, and more. Test your battery condition, load, and amperage, or check starter motor draw and charging system diagnosis with ease. Simple and safe to use, you'll get accurate battery readings each time to ensure you catch any potential battery problems before they arise. BATTERY TESTING This handy tool helps you test battery condition and load, check starter motor draw, and assists with charging system diagnosis AUTOMOTIVE USE Test cars, pickup trucks, SUVs, motorcycles, RVs, boats, and ATVs; can be used on vehicles with up to 1,000 cranking amps SAFETY FEATURES Rubber insulated carrying handle and color-coded heavy duty alligator clamps to ensure user safety COMPATIBLE RANGE Able to perform 100 AMP load tests for 12V batteries or a 50 AMP load tests for 6V batteries EASY TO USE Offers accurate battery readings with the clearly marked and color-coded display and single switch operation