General description High-quality, compatible battery with long-lasting cells for use in your power tools. This battery is also ideal as a second battery. EXTENSILO batteries and cells fulfill all operational safety guidelines and provide high performance. Technical specifications Battery type: NiMH Capacity: 3300 mAh Voltage: 12 V Energy: 40 Wh Colour: black / red Number of cells: 10 Compatibility and accessories Replacement for Black & Decker FS120BX Replacement for Black & Decker FSB12 Replacement for Black & Decker HPB12 Usage Our high-performance, long-lasting replacement batteries have been developed for maximum operating time.