There is only 1 battery that comes with all of these tablets.
7 are locked down with some type of software that only allows you to access certain apps and features.
8 are unlocked and aren't locked with the software and you can freely navigate the tablet and features.
3 will not power on.
13 have cracked screens.
2 have 1 small crack on the screens.
3 have screens that aren't cracked and seem to be good.
9 don't have back battery covers.
Please let me know if you have any questions