It should come fully charged (at least my Wi-Fi iPad did). One thing I do know about the battery though, is it takes a VERY long time to charge the FIRST time. I let the battery run down to about 20% before I charge my battery. Be warned that if you leave Bluetooth/WiFi and Notifications turned on, your battery will drain like crazy overnight if you aren't charging it. Overall, I would say that I charge my iPad about 1-2 times a week, and it lasts about 12 hours when I use it for games, web surfing, email and other app usage.