The DCK FFBL2040 is the powerhouse of the 20V Max cordless system. Built for professionals who require sustained performance without frequent battery swaps, this 4.0Ah pack provides the stamina needed for high-draw tools like circular saws, rotary hammers, and large grinders.
Constructed with premium high-density lithium-ion cells, the FFBL2040 ensures fade-free power delivery until the very end of the charge cycle. It features an advanced internal Battery Management System (BMS) that actively monitors each cell to prevent overheating, overcharging, and deep discharge, effectively doubling the service life of the pack. The rugged, impact-resistant housing is built to survive the rigors of the construction site, while the integrated 4-LED fuel gauge provides instant visibility of your remaining power level.
โข High-Density Cells: Optimized for high-current discharge to maintain tool torque under heavy load.
โข 4-LED Fuel Gauge: Convenient push-button display shows the exact charge level at a glance.
โข Intelligent Cell Balancing: Ensures each cell charges and discharges evenly for a longer overall battery lifespan.
โข Impact-Resistant Construction: Durable outer shell protects internal components from drops and vibrations.
โข Platform Compatibility: Seamlessly powers all DCK 20V Max professional cordless power tools.
Whatโs in the Box:
โข 1 x DCK 20V Max 4.0Ah Lithium-Ion Battery (FFBL2040)
โข 1 x User Manual









