Even though you don't intend to use your iPhone for some time, you ought not to keep it having a dead battery. Let your phone to fully charge each time it's put on the charger as opposed to allowing it to rundown. Otherwise, you run the risk of adversely affecting the chemical structure of the battery, possibly damaging the device. Buy an iphone 5 car charger to take care of the battery when you are away from home or your office.
Are you wondering how to remove your iPhone 3G or Advantage Connection? You've to find yourself in the cellular data network by going into settings, then standard, then network.