Tests 6V and 12V batteries up to 1000 CCA, ideal for cars, light trucks, RVs, motorcycles, ATVs, boats and lawn tractor batteries 100A load test for 12V batteries; 50A load test for 6V batteries Tests load, battery condition, starter motor draw, with complete charging system diagnosis Features top-mounted rocker switch for easier operation Includes super-grip, heavy-duty, color-coded battery clamps