Battery Parasitic Drain Test Adapter

Allows technician to test for current drain caused by control modules, computers or other solid state devices. Attaches in-line to negative battery terminal and cable. Current drain is read by connecting ammeter across tester. Used on all computer controlled vehicles since 1980. Eliminates the “shot-gun” method of replacing suspected components. Fits both side terminal and top post batteries. Plated for excellent conductivity.