OTC 7645 Parasitic Battery Draw Test Switch Shop By Category > Cooling System>Radiator Filler Adjustment Range:

Adjustment Range:

Brush Research BDM4S12 Bdm-4s

Baum Tools B722-0315 MB Overflow Pipe Remover for 722

200 Lumen LED Single Fixture Work Light w/Magnetic Base

OTC 7645 Parasitic Battery Draw Test Switch Shop By Category > Cooling System>Radiator Filler Adjustment Range:OTC Tools OTC 7645 Parasitic Battery Draw Test Switch. Finding electrical problems that drain the battery is getting harder all the time. Using the draw test switch w your digital amp meter takes the guesswork out of a complicated job. Attach the test switch between the negative battery cable & the battery, & then road test the vehicle. Next, connect an amp meter to the switch to determine the parasitic amperage draw, & locate the excessive electrical