Makita Makita Bl4040 Battery 40V 4.0Ah - 191B26-6

Makita BL4040 40V Max XGT® 4.0Ah Lithium-Ion Battery (191B26-6)

Power through demanding high-load jobsite applications with the Makita 40V Max XGT® 4.0Ah Lithium-Ion Battery (BL4040). Engineered to deliver superior corded-like power, extended runtime, and durability, this battery is built for professionals who require uninterrupted performance from their 40V Max XGT® power tools.

Equipped with smart digital technology, the BL4040 communicates directly with XGT® tools and chargers to actively monitor temperature, overload, and over-discharge—maximizing overall battery life and optimizing tool output.

Key Features & Benefits

• High-Output Performance: Delivers up to 2x longer run time compared to standard 2.0Ah XGT® batteries under continuous high-load applications.

• Rapid Optimum Charging: Charges in just 45 minutes or less when paired with the Makita DC40RA Rapid Optimum Charger (sold separately).

• Smart Digital Communication: Built-in microchips enable real-time data exchange between the battery, tool, and charger to protect against overload, over-discharge, and overheating.

• Impact-Resistant Design: Features a heavy-duty outer casing, shock-absorbing inner liner, and secure slide-on rails to withstand tough jobsite conditions.

• Integrated Fuel Gauge: 4-LED green battery level indicator allows you to check charge status instantly.

• Advanced Cooling System: Internal cooling airflow system engineered to cool the battery during charging for faster charge times and extended battery life.

• Weather & Dust Resistant: Built with multi-layer contact structures and internal seals to protect against dust, water, and debris.

Specifications

• Model: BL4040 (Part No. 191B26-6)

• System: 40V Max XGT®

• Battery Capacity: 4.0Ah (144 Wh)

• Battery Type: Lithium-Ion

• Charge Time (DC40RA Charger): ~45 minutes

• Weight: 2.2 lbs