I started to notice over the last few weeks that the battery life on my iPad 1 has gone down from the 10 hours per day I’d been getting since purchase (received mine in June, 2010) to approx. 7 hours per day now. The battery drain has been visually consistent in that previously I’d see it deplete almost exactly 1% every six minutes, and now it drops that far in only four minutes (no OCD here

). My use case has stayed predominantly the same (Wi-Fi usually on; mainly web browsing; manipulation of research files via Dropbox, etc.; regular use of voice-note apps.; very light e-mailing; reading e-books on Kindle and Stanza apps.; infrequent video streaming). I was curious to know what the experience has been of others who’ve owned the iPad 1 for at least a year, so I’m placing this poll “in the field.” I realize there is subjectivity in some of the terms used (e.g., “usage,” “decreased/increased”), but I’m just trying to get a general sense of where things stand 15 months out. Thanks for your input!
[EDITED TO ADD - Sorry, I should have made it clearer that you can make three choices: one from Options 1-4, one from Options 5-7, and one from Options 8-10.]