• The integrated L.E.D. battery charge level indicator allows the user to monitor the charge of the battery.
• When compared to the BL1830, the 18V LXT Lithium-Ion 4.0Ah battery BL1840B provides up to 35% more run time per charge.
• The BL1840B 18V LXT Lithium-Ion 4.0Ah battery charges in 40 minutes or less.
• The BL1840B 18V LXT Lithium-Ion 4.0Ah battery is compatible with 18V LXT Tools.
• It only works with Star Protection tools, as indicated by the Star Symbol and/or the Yellow Battery Receiver under the tool.
• Product Dimensions (cm): 7.62 x 17.15 x 24.77

The Makita 18V LXT Lithium-Ion battery charges quicker and lasts longer than regular lithium-ion batteries, providing you and your cordless tools with unrivaled performance and productivity for the most demanding tasks. The Makita 4.0Ah battery, model BL1840B, combines longer run time (35% more run time per charge than the Makita BL1830 battery) with a category-leading charge time of only 40 minutes, allowing it to spend more time working and less time charging.