Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)
The first time you charge your iPad, the battery will be respectfully bad.
Just bring it down to 10% or until it's completely dead and then completely charge it.
I thought my iPad was a defect because the battery only lasted 4-5 hours, but after it died, I left it overnight in the wall, and the next day I used it for a full 8 hours on 40% brightness browsing the web, it finally died after 2:00 am, it lasted 14 hours.