• 18V LXT® Lithium-Ion 4.0Ah battery reaches a full charge in 40 minutes or less
• Provides up to 35% more run time per charge compared to BL1830
• Integrated L. E. D. battery charge level indicator allows user to monitor battery charge
• Battery delivers consistent power and run time in extreme temperatures, even in winter (-4°F/-20°C)
• Equipped with Star Protection Computer Controls™ to protect against overloading, over-discharging and over-heating
• Impact-resistant outer case and shock-absorbing inner-liner are engineered to protect the battery
• Sixteen contact terminals maintain a constant connection with the tool to help prevent power loss or fluctuation, even during high-vibration applications
• Battery resists self-discharge and remains ready for use even after long periods of storage
• Compatible only with Star Protection tools, indicated by the Star Symbol™ and/or Yellow Battery Receiver under the tool
• Makita 18V Lithium-Ion is the world's largest cordless tool line-up powered by an 18V Lithium-Ion slide-style battery
• The Makita Rapid Optimum Charger communicates with the battery's built-in chip throughout the charging process to optimize battery life by actively controlling current, voltage and temperature
• Built-in fan circulates air through the battery during the charging process to cool the battery for faster charge time
• Optimizes battery life by actively controlling current, voltage and temperature
• 3-year limited warranty Includes: (2) 18V LXT® Lithium-Ion 4.0Ah Battery (BL1840B), (1) 18V LXT® Lithium-Ion Rapid Optimum Charger (DC18RC)

Packing & Sold In: Each