In announcing the news after practice Sunday night, coach Chan Gailey said both are expected to miss too much of the regular season to carry them on the active roster.
Easley, a fourth-round pick out of Connecticut, is recovering since having surgery to repair a left knee injury he sustained Aug. 2. Batten, a sixth-round pick out of South Dakota State, has been out since hurting his right shoulder in practice on Aug. 1.
The Bills could also be down another tight end after Michael Matthews hurt his left ankle or foot in practice Sunday. Gailey had no immediate update on the player's status.