The Milwaukee M18 FUEL 16 in. Chainsaw delivers the power to cut hardwoods, cuts faster than gas, and delivers up to 150 cuts per charge. The unit is designed to meet the performance, durability and ergonomic needs of professional landscape maintenance, power utility, and the installed M18 user. The POWERSTATE brushless motor maintains speed under heavy loads without bogging down to outperform small gas engines and higher voltage systems. REDLINK Plus intelligence ensures maximum performance and protection from overload, overheating and over discharge. The M18 REDLITHIUM FORGE HD12.0 battery delivers unmatched run-time in all applications. M18 FUEL technology allows the unit to reach full throttle in under 1 second providing ultimate control and productivity. Our M18 REDLITHIUM FORGE HD12.0 Battery Pack delivers 50% more power vs the HIGH OUTPUT 12.0, and the longest life vs REDLITHIUM batteries. REDLITHIUM FORGE are Milwaukee's most powerful, fastest charging, and longest life batteries. The M18 REDLITHIUM FORGE HD12.0 delivers 12 amp hours of runtime with 50% more power vs the HIGH OUTPUT 12.0, providing optimal power and runtime for demanding applications. The M18 REDLITHIUM FORGE XC8.0 Battery Pack delivers HIGH OUTPUT 12.0 power in a smaller size, high-speed cooling for less downtime in high-demand applications, 35-minute supercharge to 80%, and the longest life vs REDLITHIUM batteries.