I cam from the Droid Razw Maxx. I got two days out of that battery. Yesterday was my first full day with the phone. I was on it more than usual just learning the phone. At the end of the day I still had 32% left on the battery. Today, day two, I went for a 25 mile bike ride tracking my route with location services on and I still have 84% left on the battery and it is early afternoon. So far I am pleased. I don't expect to get two days out of the battery but if I can get a full day I will be happy.