Cellular really isn't all that power hungry, the problem is really data period, i.e. your phone being awake at all. If you get a 500MB plan, set everything unim

Cellular really isn't all that power hungry, the problem is really data period, i.e. your phone being awake at all. If you get a 500MB plan, set everything unimportant to restrict background data, and turn off WiFi your phone can last for days.