About this replacement
Designed for Innovaphone, Avaya, Ascom devices. Compatible models include D81 EX, DECT 3740, DECT 3749, 3700 EX, D81, 660273, DH5, DH5-AABAAA/2E, D61, D65, DT413, DT423. Replacement part numbers include 660273/1B, 1220187. Key specifications: 3.7V, 1100mAh, Li-ion.