Battery Drain No Parasitic Draw. Same thing goes for batteries and starters. Luckily you can usually find the cause of a parasitic draw yourself.
Car battery drains overnightdies or after days of no use parasitic drain parasitic draw engine will not start. The draw may be 300mA when it should be only 20mA. Check the charging system for a loose or worn-out alternator belt problems in the circuit loose disconnected or broken wires or a failing alternator.
Dude I can guarantee you well almost its the black cable going to the alternator in your fusebox on the battery thats going to be causing the drain.
No need for HazMat suits yet. This is known as parasitic draw. I compared this to my other working cars to make sure its not my multi meter and it is about the same on multiple. On occasion a battery may experience significant drain long after the engine has been shut off.
