How To Do A Battery Drain Test. Both methods require a digital multimeter. Check for battery drain.
In this video I show how you can perform an in depth testing procedure to determine whether your car has a parasitic draw when the car is turned off. Grab your prongs red goes to positive black goes to negative. That means your battery is fully charged.
The digital panel or the analog scale will give a numbered read out indicating the state of the charge.
If not look for a generic solution on the web. The voltage-drop battery drain test This test allows you to examine whether there is any voltage drop in your vehicles battery. That means your battery is fully charged. It would be best if you referred to your manual to have an idea of the duration that your car modules need to be switched off and then check whether the control modules have a cycle that is either on or off.
