30+ hours in low usage (during the workday the device pretty much sleeps the whole time), but I could probably get 18-20 for moderate use. Right now I put the device into charging roughly every 24 hours.
Pdroid, when you plug in your phone to charge, what is your battery level at? Also, 18 hours is pretty good compared to me. Can you let us know if/what you did so your battery lasts as long as it does?