Car batteries are expensive, and you want them to last as long as possible. The more demand there is on the battery, though, the more quickly it will run out of power. Extra accessories, such as cell phone car chargers, will increase the drain.
Effects
Cell phone chargers are like any other electrical accessory in your car, drawing power from the battery and gradually draining it. The charger can't tell when the car battery is low, so if you think your battery is about to die, do not charge your phone in your car unless it is an emergency. Extra accessories are such a common cause of battery power loss that websites such as AA1Car.com recommend looking for them first before hunting down other possible sources of power drain.
Continual Power Source
The battery's flow of power to accessories isn't dependent on running the engine. This is why your lights and radio still work after shutting off the engine -- don't assume that because the engine is off, there's no power available in the car.
Solution
Unplug the cell phone charger when the phone is fully charged, otherwise the charger will continue to draw power as long as it's plugged in. Alternatively, charge your phone at home, if possible, where you can use a wall plug instead of a portion of your battery's limited supply.
Tags: accessories such, charge your, charge your phone, Extra accessories, Extra accessories such
