Schumacher 100-amp Battery Load Tester is available at Amazon for $23.98. The price goes down to $15.59 if you clip off the coupon on the product page.
- 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