They were for the touch pro2 or tilt 2 but I researched and from what i see these batteries definately work in the Evo without needing a bigger back plate.
EDIT: here is the item mumber: 250629850592 . enter the item number and it takes you right to the auction.
EDIT: here is the item mumber: 250629850592 . enter the item number and it takes you right to the auction.