Does Car Battery Drain If Not Used. If the battery drains when the vehicle sits for three or four days thats a lower amp draw than one that drains. With this power draw even if you leave your headlights on all night they wont be able to drain your battery.
The rate of self discharge determines the shelf life of just sitting around unused. I usually change my car battery every 3 years. It is a big drain on the battery much larger than the third-party apps that are being used.
According to BMW the maximum time you can let your car sit with the battery intact is four weeks.
A faulty charging system will drain the battery while the car is running. Car battery drains overnightdies or after days of no use parasitic drain parasitic draw engine will not start. Changing a new battery is the right choice for you by going to the trustful garage. Electric devices like timed and dimming dome lights can stay awake and produce excessive drain on the battery for up to 10 minutes.
