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