Three cells in shrink-wrap with two contacts on side. 3.6 Volt NiCad Cordless Phone Battery. Fits models; Bell Atlantic CL980, Cidco CL-980, Cidco CL-990, Cidco CL-991, Cidco CL-9HS, Cidco CL940, Cidco CL992, Cidco D271, Pacific Bell CL991, Southwestern Bell 2-9931A, Southwestern Bell 2-9932A, Southwestern Bell 980, Southwestern Bell FF980