6v 12v 500 Amp Carbon Pile Battery Load Tester Alternator Starter 1000a Testing Tests For 6 Or 12V Lead-acid Batteries Test Batteries Up To 160Ah/1000CCA 500A Load Type Battery Tester Completely Portable; Outside Power Not Required Adjustable Dial Meter Heavy Gauge Solid Copper Wire Leads Heavy-duty Insulated Clamps Color-coded Temperature Compensation Pass Or Fail Chart And Color-coded Separate Voltmeter And Ampere Meter Suitable For Cars; Vans; Motorcycle; RVs And Farm Vehicles Load Test Time: 15 Second