Charging your phone via your car is simply energy transfer from your cars battery to your phone battery, says Duffy. So, if you had a 100Ah car battery, and your phones battery was 1. 8Ah (which is equal to 1800mAh), a completely dead handset would pull less than 2 of the charge out of your vehicle.Even with no phone plugged in, a charger draws a little current. If the audio jack is an FM transmitter, then it draws the same current whether there is audio going through it or not. Will it drain your battery? Only if your battery is so close to dead that it might not start the car even if you didnt leave those things plugged in. leaving phone charging in car
Reddit gives you the best of the internet my phone charger was never unplugged while my truck was in Say you leave the charger in the car plugged in over
I have a USB micro charging adapter for my smartphone for my car. When I dont have my phone Is it okay to keep a USB charger plugged into the cigar lighter? After seeing this special, I would personally not leave a lithium ion battery charging in my car. Yes, NOVA did show a video of an SUV on fire as a result of the owner having left his phone charging in the cars power port.leaving phone charging in car If the car is turned off, just as with the lights inside the car, the cell phone charger is drawing power from the car's battery. Leaving the charger plugged in when not charging a cell phone may also drain the battery's power, but this will be a slower drain on the battery than if charging a phone.
Even when it is not charging anything, leaving the phone charger plugged in may drain the car battery and may deplete its power if the engine is not running, which could leave you stranded or make for an inconvenient morning. leaving phone charging in car