I haven't sat down and measured how often I charge my nook, but it's around every week or so. If I read for 8 hours straight, then I obviously have to charge it more frequently. I charge my BlackBerry every night, so a once-a-week charge seems pretty reasonable to me. Really, if the battery life ends up being a significant issue for you, you can always send it back and order a K3. Either way, you're readin'.
