Includes (1) 90571729-01 Battery Charger. New, Bulk Packed. Genuine OEM replacement part. Consult owners manual for proper part number identification and proper installation. Please refer to list for compatibility. Compatible with: Black and Decker : FSB18, FS18BX, FS180X, HPB-18, HPB18-OPE among others. Works with Black and Decker : Firestorm and Quantum Pro 18V Slide Batteries.