Nothing to do with uC: measuring parasitic draw from car battery

Author	Message
Volhout Guru Joined: 05/03/2018 Location: Netherlands Posts: 6024	Posted: 09:56am 16 Aug 2024       Disconnecting the car battery does not give you information how to fix. It is 2 things 1/ a weak old battery. Measure the volts during engine start. When it goes down to 9 volt, replace it 2/ something eating power. Through the fuse box you get an idea where to look. Volhout