I had the original Droid, and I seem to recall about 12 hours between charges with light to moderate use. Then in May 2011, I upgraded (ha!) to the HTC Thunderbolt, and on an average day, the indicator would be in the yellow in about 5 hours. On the other hand, I've had my Maxx of the charger for about 15 hours now, and with the light to moderate use it's seen today, I'm still at 70%. For the first time in a long time, I don't have to be thinking ahead throughout the day as to howI'm going to keep my phone running.