Replacement battery fits 14 Smiths compatible models. Specifications: 2000mAh, 12V, Ni-MH. Compatible with: Corporation TOP-5300, TOP Infusion Pumps 2200, TOP Infusion Pumps 3300, TOP Infusion Pumps TOP-3300, TOP Infusion Pumps TOP-2200, TOP Syringe Pump 2200 and 8 more compatible models. Replaces: Smiths BP-53. Smiths replacement battery designed for Medical devices.