OTC 7645 Parasitic Draw Tester wheellocknut Associated Battery Rack Stores up

Associated Battery Rack Stores up to 15 Batteries on convenient three shelf

T-Slot Centers | 2-1/2"

300 amp insulated safety clamps

OTC 6076 Ford Diesel Compression Test Adapter

OTC 7645 Parasitic Draw Tester wheellocknut Associated Battery Rack Stores upOTC Parasitic Draw Tester Finding electrical problems that drain the battery is getting harder all the time. But using No. 7645 with your digital amp meter takes the guess work out of a complicated job. Attach the test switch between the negative battery cable and the battery, and then road test the vehicle. Next, connect an amp meter to the switch to determine the parasitic amperage draw, and locate the excessive electrical drain on the battery.