Power your demanding applications with the BL1840B Makita 18V LXT® Lithium-Ion 4.0Ah Battery. Outclassing standard lithium-ion batteries, it charges faster and works longer, providing your cordless tools with unparalleled performance and productivity. Experience 35% more run time per charge compared to the Makita BL1830 battery, and enjoy the convenience of a short 40-minute charge time, ensuring your battery spends more time working and less time charging. An integrated L.E.D. charge level indicator enhances convenience by letting you monitor battery charge at a glance.

The BL1840B Makita 18V LXT® Lithium-Ion 4.0Ah Battery boasts a strong compatibility with Star Protection tools, identifiable by the Star Symbol™ and/or Yellow Battery Receiver under the tool. It also exhibits resistance to self-discharge, standing ready for use even after long storage periods. When used with the Makita Rapid Optimum Charger (sold separately), the smart-charging system communicates with the battery during the charging process, monitoring current, voltage, and temperature. This advanced technology optimizes battery life and delivers a faster charge. The Charger also has a built-in fan for quicker and more efficient charging, even in hot conditions.

The BL1840B Makita 18V LXT® Lithium-Ion 4.0Ah Battery benefits from Makita’s STAR Protection Computer Controls™. This innovative technology enables real-time data exchange between the tool and battery, monitoring conditions during use to protect against overloading, over-discharging, and overheating. Be part of the Makita revolution, the world leader in cordless tool technology, powered by an 18V lithium-ion slide-style battery.

Designed with an impact-resistant outer case and shock-absorbing inner liner, the BL1840B Makita 18V LXT® Lithium-Ion 4.0Ah Battery is engineered for protection. It features sixteen contact terminals that maintain a constant connection with the tool, preventing power loss or fluctuation even in high-vibration applications. Rest assured that even in extreme temperatures as low as -4°F/-20°C, this battery provides consistent power and run time.

Join the Makita 18V Lithium-Ion family, the world’s largest cordless tool line-up powered by an 18V Lithium-Ion slide-style battery. The BL1840B Makita 18V LXT® Lithium-Ion 4.0Ah Battery, boasting a category-leading charge time, ensures your battery spends more time working and less time on the charger. Trust in the quality and reliability of Makita with the 3-year limited warranty included.