How to Test and Find a Parasitic Battery Drain ( Key Off)

Is something draining your car s battery Don t pay a mechanic Use a multimeter and these stepbystep instructions to perform voltage drop tests to isolate the circuit that is draining your car s battery. Includes troubleshooting tips and advice for all levels of auto repair experience. Sponsored by BBB Industries makers of premium alternators and starters that meet or exceed OE form, fit and function. Related Video: How to Use a Multimeter to Troubleshoot Common Problems Eric the Car Guy is an ASEcertified Master Technician based in Cincinnati, Ohio.