The battery life has been pretty good for me. It has gotten better over the past week. All of my previous Android devices, except the G2X had pretty bad battery life under the same usage so I easily make it through the day and into the late evening. Whereas with the EVO, Thunderbolt, Droid Inc and Captivate, I barely could make it to 3pm on a workday without having to charge it. So it's all good considering those things. And trust me because I was skeptical of this device considering my experiences with HTC devices. If TMO's apps (TeleNav, app pack) didn't run in background on there own it would be even better. Can't wait to disable those.