Milwaukee M18 FUEL 20" Dual-Battery Chainsaw Kit — 5.8HP Brushless Cordless, Extended Runtime

The Milwaukee M18 FUEL 20" Dual Battery Chainsaw Kit is a cordless, brushless chainsaw that delivers gas-like performance using two M18 REDLITHIUM batteries for extended runtime and up to 5.8HP peak power.

The M18 FUEL 20" Dual Battery Chainsaw Kit pairs Milwaukee’s brushless POWERSTATE motor with dual-battery architecture to tackle heavy cutting tasks without a gas engine or cords. Built for professionals and demanding homeowners, it balances high torque, sustained cutting speed, and onboard electronics to manage power delivery and protect the tool. This kit includes the 20" bar and chain, components for dual M18 battery mounting, and electronics that monitor temperature and load to optimize performance and runtime.

How much cutting power and torque does this cordless chainsaw provide?

The chainsaw produces up to 5.8 horsepower peak output and 9.5 Nm of peak torque to maintain cutting momentum under load. Those figures are engineered to reduce stalling and keep the chain moving through larger diameter wood.

• 5.8HP peak power for high-demand cuts
• 9.5 Nm peak torque to lower stall frequency
• Brushless POWERSTATE motor for efficient power delivery
• Electronic controls that modulate speed and protect the motor

What runtime and battery setup does the dual-battery system use?

The saw accepts two M18 REDLITHIUM batteries simultaneously to increase available voltage and extend run time compared with a single-battery setup. Dual batteries share the load, which helps maintain consistent performance during long cutting sessions.

• Dual M18 battery configuration for extended runtime
• Compatible with Milwaukee M18 REDLITHIUM battery platform
• Battery sharing reduces voltage sag under heavy load
• Onboard electronics manage battery temperature and state of charge

How does the 20" bar and chain perform for different cutting jobs?

A 20" bar gives reach and capacity for medium-to-large logs, making it suitable for felling small trees, limbing, and cutting firewood. The saw’s high torque and chain speed are intended to keep cuts steady through thicker cross-sections.

• 20" bar for larger-diameter logs and deeper cuts
• Optimized chain speed for fast, controlled cutting
• Suitable for cross-cutting, limbing, and felling smaller trees
• Tool design reduces stalls on dense hardwoods

What features support durability, maintenance, and user control?

Milwaukee integrated components that focus on reliability and easier upkeep, including robust motor protection and routine service access points. The cordless design removes fuel maintenance while retaining professional-level cutting capability.

• Brushless motor minimizes wear and improves efficiency
• Sealed electronics to protect against dust and debris exposure
• Accessible bar tensioning and chain replacement for field maintenance
• Ergonomic handle and chain brake for operator control and safety

Who this is for: The Milwaukee M18 FUEL 20" Dual Battery Chainsaw Kit is aimed at professional contractors, arborists, and serious property owners who need cordless cutting power comparable to gas saws without the emissions, fuel mixing, and routine engine maintenance. It suits users who already invest in the Milwaukee M18 battery ecosystem and want longer runtime and higher torque for heavy cutting tasks.