4 ms·
Anecdotal, but if I leave a USB charger plugged into the cigarette socket, without even anything plugged into the usb, it drains my battery overnight.
by PetahNZ 7y ago
Anecdotal, but if I leave a USB charger plugged into the cigarette socket, without even anything plugged into the usb, it drains my battery overnight.
- oh_sigh 7y agoIf it's not a car from the 80s there may be a fuse you can add/remove which converts your cigarette lighter from always on to only when engine is on. Check the back of your car manual.
- bt848 7y agoGet a refund. I leave a phone plugged into my car's USB port 24x7 and the car has its own GSM modem too and obviously it starts right up every time.
- dharmab 7y agoThe difference is that you're using a USB port directly built into the car (which is "smart" about not draining the battery) while the other user is using a cigarette lighter to USB adapter (the cigarette lighter is a "dumb" circuit).
- deleted 7y ago[deleted]
- allannienhuis 7y agogetting your battery tested might be useful too.