This charger is used in 8 models.
Model: 51821, 51824 (Flex-Force Power System 60V MAX Axial Blower) Model: 51831 (Flex-Force Power System 13in or 15in 60V MAX String Trimmer) Model: 51833 (Flex-Force Power System 60V Stick Edger)
Model: 51841 (Flex-Force Power System 24in 60V Hedge Trimmer)
Model: 51851 (Flex-Force Power System 41cm (16in) 60V MAX Chainsaw) Model: 51870 (Flex-Force Power System 60V Pole Saw)
Model: 51881 (Flex-Force Power System 60V MAX Axial Blower and String Trimmer Combo)