About this replacement
Designed for Unify, Mitel, Ascom devices. Compatible models include Openscape WL4, 5614, 5634, D63, D63 Messenger Lite, D63 Protector, D63 Talker Lite, DECT 3735, DH7, DH7-AABA, DH7-ABBA, DH7-ADAA. Replacement part numbers include 490933A, 660497. Key specifications: 3.7V, 800mAh, Li-ion.