I have a proper Motorola extended battery with a new back door on the way now. I look forward to having more than 4 hours of heavier use before running to a charger. I like to play a game on my phone called Rage of Bahamut, but the thing is a data hog! Very little of the game is actually stored on the phone so the internet connection is constantly going. When i am at home, i can run wifi to save on power and charge when i need to, but running it on 4G just kills this battery quick.