XtremepowerUS 6 & 12 Volts Battery Load & Charging Tester Charger Tool Portable & Easy read scale from 1 to 16 Volt Test Both 6 And 12 Volts Baterries and Charging Sytem Outputs Load Test Capacity: 500 ~ 1000 Cold cranking amps Display Meters: Analog, 0 ~ 16 VDC (max) Battery Cable: 16-3/4" long clamp