Something is draining my car battery overnight. Brand new battery and all lights are turned off.
Any ideas?
What car ?
Mk1 mx5
Is there a light in the boot.
Thoroughly clean all earth points. Trace them back from the battery negative terminal to where they attach to the body and take them off and use emery cloth or something pretty abrasive to clean the contact area and replace connections.
A smear of Petrolium Jelly will help to prevent further corrosion😉
If you keep it garaged take the keys out of the ignition.
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