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 Weight: 664 g Battery type: NiMH Capacity: 3300 mAh Voltage: 14.4 V Energy: 47.52 Wh Colour: black Number of cells: 12 Compatibility and accessories Replacement for Dewalt W9091 Content of delivery: 2x battery Usage Our high-performance, long-lasting replacement batteries have been developed for maximum operating time.