So I had a four-year-old iPhone 4 up at school where the signal blows goats. Used it with wifi always on, could easily go two days on a charge. My iPhone 5 with a new battery was lucky to see a full day of charge. Came home where the signal is always strong, and my iPhone 5 suddenly crushes my 4 battery. At this rate, I'll have three days before a charge. The 4 was always worth about two days. I would guess that low signal puts a higher drain on LTE systems than 3G, since my 4 would only have to switch between 3G and E, but my 5 hunts for LTE, 4G, 3G and E. Thoughts?