M18 REDLITHIUM High Output HD12.0 battery pack provides more power and runs cooler versus M18 REDLITHIUM HD battery packs. The massive increase in power elevates the performance of the entire M18 system and drives the next breakthrough in M18 FUEL, delivering the power of 15A corded product. Delivers fade free power and runs substantially cooler through heavy applications, allowing tradesmen to push their cordless tools harder and longer. Provides increased power in extreme cold weather conditions (below 0F / -18C). Provides the most work per charge of any professional power tool battery in the industry, driving full corded replacement on the job site. Onboard fuel gauge displays remaining run-time. Features REDLINK Intelligence to provide optimized performance and overload protection using total system communication between tool, battery and charger. Battery is fully compatible with 150+ M18 solutions.