3.7V 1200mAh Li-Ion
FRA051
For: C6, C6 DECT

3.7V 700mAh Li-Ion
312BAT006
For: 2000 2446, AVM 2000 2446, C4, M2, MT-F

3.7V 700mAh Li-Ion
312BAT016, BAK130506
For: AVM 2000, AVM 2446, C4, C4 Mobilteil, C5, C5 Mobilteil, M2, M2 Mobilteil, MT-F, MT-F 2000, MT-F 2446

2.4V 600mAh Ni-MH

For: DECT MT-D, MT-D VOIP DECT, VOIP DECT