MaximalPower Power Tool Replacement Battery for BLACK & DECKER 18V 244760-00, A1718, A18, HPB18, HPB18-OPE and Firestorm A18, FS180BX, FS18BX, FS18FL, FSB18 Amazon.com is the only authorized dealer selling MaximalPower brand products. Please make sure your item is ONLY sold and shipped by Amazon.com! All other marketplace vendors are selling counterfeit products that do not perform the same, and/or are not covered by our MaximalPower Warranty. Replaces the following OEM battery part numbers: Black & Decker # 244760-00, A1718, A18, HPB18, HPB18-OPE and Firestorm # A18, FS180BX, FS18BX, FS18FL, FSB18 Battery Type: Ni-Cd. Capacity: 18v EXTENDED 2000mAh (Will NOT affect battery compatibility) Integrated microchip prevents overcharging & lengthens battery life! 100% Compatible with original manufacturer equipment.