Brand New in Box. Experience superior power with the Milwaukee M18 REDLITHIUM FORGE Battery. This red and black battery offers high output and quick charging, ensuring your tools are always ready for the toughest jobs. High Output Power: Delivers 12.0 power output in a smaller size. Fast Charging: Can supercharge to 80% in just 15 minutes with the M18 Dual-Bay Simultaneous Super Charger. Long Life: Offers the most recharges and best performance over its lifespan. Compatibility: Works with all M18 tools. Construction: The battery housing is made of PA66 nylon 25% glass fiber reinforced flame resistant polymer, which is more chemically resistant than previous models. Dimensions: Approximately 5.05 inches long, 3.31 inches wide, and 3.16 inches high. Weight: Around 2.07 lbs