I got a usb cell phone charger that sits flush into the 12v power outlet (front dash). And then you plug a usb cord into that. If I just leave it plugged into the 12v outlet will that drain my battery. Hoping when the car is off there is no power to the outlet and when on of course power runs off alternator. but not sure and don't want to drain my battery.
Will I drain my battery?
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You should be fine. I have an 08 and I leave my gps plugged in all the time. when you shut off the truck the power is cut from the outlets. At least the front. I have yet to check the back one. If you need to confirm find a plug with an LED light and test it out or check you phone's charger icon when you shut off the truck.
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When you turn on the key it shuts off both outlets unless you have done the outlet mod and you will not drain your battery.
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