No battery included (tray is included, though). Stand and screws are included.
Although the unit is in good cosmetic condition (minor scuffs/scrapes/dings from handling), it does not power up. I am not sure if this is just because the battery is missing, or because there is something more significant wrong with it.
Either way, it should be good for all kind of parts. I do know that this was working a couple years ago.