Posts Tagged: battery drain test

How to Find What’s Draining Your Car

Step-by-Step Guide to Locate What’s Draining Your Car Battery Quick Summary If your battery keeps dying overnight or after sitting for a few days, you’re probably dealing with a parasitic battery drain. The good news is that you can find what’s draining your car battery with either a current-draw test or a voltage-drop test. In this guide, I’ll explain both methods, show you the tools I use, and reveal the most common causes of battery drain, including stuck relays, malfunctioning modules, glove box lights, aftermarket electronics, and charging system issues. … Read More