Thanks for your responses.
Very useful comments so far.
I am now thinking of getting a 0.1R resistor. But given the risk of higher current I think I should up it to 100w rather than 10w.
For the same reason I'm going to need some better rated leads to connect the resistor to the battery...
Hi all, I'm new to the forum.
My car has a battery drain problem that is proving difficult to diagnose.
I want to measure the current being drawn over a long period of time (e.g. 24 hours). I know it decreases to about 80mA after 20 minutes, but I suspect the car wakes up periodically and...
