If my Twitter feed is any indication, you've been wanting to hear about the battery, and that's what I'm talking about in day 24 of the HTC One Challenge.  It's a 2,300 mAh non-removable battery, meaning you can't take it out of the device and replace it with another one.  Many consider this to be a point of contention, but I don't see it as a problem - there are a number of external charging solutions out there (HTC actually makes one in non-US markets).

Overall, I'm getting about 10-12 hours with moderate to heavy use.  Battery life varies depending on the person, and you have to keep it in perspective.  If you're coming from a Motorola DROID RAZR MAXX (HD) or Samsung Galaxy Note II, battery life will be a bit different.  For most, this is an incredibly capable battery.

Let me know what you'd like to see in the final videos @PhoneDog_Aaron on Twitter!