Home » Car Batteries » Can Leaving My Cell Phone Plugged Into My Car Charger Drain The Car Battery Can Leaving My Cell Phone Plugged Into My Car Charger Drain The Car Battery Can leaving my cell phone plugged into my car charger drain the car battery? Tags:Battery, Cell, Charger, Drain, Into, Leaving, Phone, Plugged Related Questions How Do I Figure Out If This Car Battery Is Positevly Or Negativly Grounded Its a battery in an OLLDDD oldsmobile 1959 – but obviously the battery isnt that old so i guess thats irrelavent. The battery is an interstatre mega tron PRO. Battery Charger For Nine Hours On Two Amps For Minivan I am wondering if I can move it to 4amps to fasten the pace, yet it is for motorcycles, not cars? I also charged it yesterday for four hours. Answers for The Question boogie2510 Technically, yes. But you would have to leave it parked for weeks. I would be far more concerned about the charger or phone battery overheating – and that probably won’t happen, either. dodge man it will drain it down a lot after about three or four days because mine did this once but it shouldn’t hurt it for a day or two and if you have a real good battery it wont hurt it at all the newer battery’s will take the drainage,and still start,,good luck,i hope this help,s. WiseWon As stated above, yes it could, but it depends on a number of factors. if you’re having trouble with the battery and think it might be the phone…it probably isn’t. davidslyviper you would have to have it on the charger for a very long time. Or have a very poor battery in your car. You would have to try very hard to kill the battery with a cell phone. rwings8215 no because the car chargers have a built in unit that once the phone is charged it will stop charging. Kind of like a light switch it cuts off the power to it. want2wild Not unless your battery is already worn out. dan Charging my ipod touch twice without ever starting the truck caused me to need a jump… so yes… But.. I have charged it once several times before without issues… My truck battery is 3 years old so a new one would obviously be better… Incoming search terms: What Can Happen To A Truck If Its On With A Car Charger Plugged In ?,Can A Car Charger Drain Your Car Battery,Leaving Something Plugged In 2021 Ford,What Makes My Cell Phone Charge Slow When Plugged In My Truck,Will A Phone Charge Plugged Into A Car With The Car Off,Will Leaving A Phone Charger Plugged In Run Down Truck Battery,Will Leaving Uour Car Charger Plugged In Drain Your Battery,Will My Phone Charge Wihile Plugged Into The Car Charger When The Car Is Off?,Will Your Car Battery Drain If U Leave Your Cell Phone Plugged In,Leave Phone Charging In Car Drain Battery?