Quote Originally Posted by KiLL3R View Post
you can use a PSP-1000 battery for a PSP-2001 , but the PSP-2001 battery is smaller and doesn't fit properly in the phat psp.

So if you do make this and want to use it on both, use the phat battery (but u might need to buy a new one after)
you can!!!!! it didn't know that.
my slims about to join the dark side :E: