Using Micro 420 Battery Tester (Gasoline Engines): Notes
NOTE:
The Micro 420 Battery Tester should only be used to test vehicles equipped with gasoline engines. If the vehicle being tested has a diesel engine the OTC One Step Battery Analyzer and Charger special tool number OT-3641 or equivalent should be used to test the battery.
Always use the Micro 420 Instruction Manual that was supplied with the tester as a reference. If the Instruction Manual is not available the following procedure can be used:
WARNING:
Always wear appropriate eye protection and use extreme caution when working with batteries.