Playing with it for about 45 minutes this morning after a full night of charging reduced it to about 93%. So from that I would imagine it would get 8-10 hours of battery life. That was just browsing and installing apps, however--I wasn't listening to music, streaming video, or playing games. So...
Have the exact same problem as the TC. Installed Android, it worked fine at first boot and connected to the internet, I restarted and installed gApps, and now it won't connect to my wifi even though the settings are saved.