Is It Safe To Leave Cell Phone Chargers Plugged In. While its convenient to leave your phone plugged in while you drive it might not be the best choice. This would be one of the notable problems you may face while charging your iPhone overnight.
Cell phone chargers only use electricity when they are charging LaMay explains. For the most part leaving your modern phone plugged into a charger overnight isnt going to be a problem. Yes its safe to leave your smartphone plugged into the charger overnight.
Its not possible to exceed these limits by leaving your phone on the wireless charging pad for too long or by leaving it plugged in overnight.
A desktop computer by comparison uses a maximum of 921 watts annually when switched off translating to 9. This means that even though your phone is full and plugged in its technically not in use. For example if you still have a cell phone or other portable electronics device from the 90s its charger might continually use a noticeable amount of power if you leave it plugged inbut even that amount of vampire power probably wont make a noticeable dent in your electricity bill. Leaving cell phone chargers plugged into outlets draws energy from that outlet even when the charger is not in use.
