Li-ion Cordless Phone Battery for FRITZ!FON, 3.7V, 700mAh, Compatible Models: AVM 2000, AVM 2446, C4, C4 Mobilteil, C5, M2, MT-F

Li-ion Cordless Phone Battery for FRITZ!FON, 3.7V, 700mAh, Compatible Models: AVM 2000, AVM 2446, C4, C4 Mobilteil, C5, M2, MT-F

AliExpress