Milwaukee M18™ REDLITHIUM™ FORGE™ HD12. The MILWAUKEE® M18™ REDLITHIUM™ FORGE™ HD12.0 Battery Pack delivers 50% more power than the HIGH OUTPUT™ 12.0, ing the longest life d to other REDLITHIUM™ batteries. Known as Milwaukee's most powerful, fastest charging, and longest-lasting batteries, the M18™ REDLITHIUM™ FORGE™ HD12.0 provides 12 amp hours of runtime, ensuring optimal power and endurance for demanding applications. This advanced lithium-ion battery features a durable housing that resists common oils, greases, and solvents, enhancing its protection in tough work environments. Equipped with built-in REDLINK™ Intelligence, it safeguards the battery from overloads to prevent damage to your cordless power tools during heavy-duty use. Fully compatible with over 275 M18™ tools, it pairs seamlessly with the M18™ & M12™ Rapid Charger, which charges batteries up to 40% faster to minimize downtime and boost productivity. The charger communicates directly with the battery to monitor cell voltage, temperature, and charge status, ensuring a full and efficient charge every time. Model Number: 48-59-1300