I have a Verizon brand car charger but have never had the need to use it until this weekend when I traveled from NJ to VT for skiing. I had the navigation and pandora going the entire trip with the charger pluged in. However when I got there and unplugged the battery was almost completely dead. Does the car charger not supply enough power to charge and run the droid with all the data and gps usage going? Also the area where I was staying had very poor coverage and once the droid was charged it lost its charge very quickly. should I turn off sync in areas of poor coverage?