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

Author	Message
bigmik Guru Joined: 20/06/2011 Location: Australia Posts: 2981	Posted: 12:32am 17 Aug 2024       GDay Tom, All, Just pop out a fuse and put your multimeter across the terminals in AMP mode. Record the reading and go to the next etc etc etc. If you see a reading that seems high then you should also know the area to be looking. These cases are usually 3rd party car alarms or entertainment equipment powered off a permanent 12V rather than a switched AUX 12V that should be off when the car is off (and locked). You could use an old blown fuse and solder wires to it to connect your meter. Regards, Mick (The big one) .