Cat® power tools have an available 18V 2Ah Battery (DXB2), a 4Ah Battery (DXB4), and a 5Ah Graphene Battery (GXB5). All 1 For All 18V Batteries are compatible with every Cat® 18V tool. Cat® 60V Outdoor Power Equipment has an available 2.5Ah Battery (DC6B25), and a 5Ah Battery (DG6B5). Both of these batteries are compatible with all Cat® 60V Outdoor Power Equipment tools.