Brand new in case Efficient BL™ Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge The BL™ Brushless Motor eliminates carbon brushes, enabling the BL™ Motor to run cooler and more efficiently for longer life The electronically-controlled BL™ Brushless Motor efficiently uses energy to match torque and RPM to the changing demands of the application Variable 2-speed 1/2" Hammer Driver-Drill (0-500 & 0-2,000 RPM) with BL™ Brushless Motor delivers 530 in.lbs. of Max Torque; weighs only 4.2 lbs. with battery Variable speed Impact Driver (0-3,400 RPM & 0-3,600 IPM) with BL™ Brushless Motor delivers 1,500 in.lbs. of Max Torque; weighs only 3.3 lbs. with battery Hammer Driver-Drill features Extreme Protection Technology (XPT™) which is engineered to provide increased dust and water resistance in harsh job site conditions. 18V LXT® Lithium-Ion 4.0Ah battery BL1840B features an integrated L.E.D. battery charge level indicator 18V LXT® Lithium-Ion 4.0Ah battery BL1840B provides up to 35% more run time per charge* 18V LXT® Lithium-Ion 4.0Ah battery BL1840B reaches a full charge in 40 minutes or less 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 Rapid Optimum Charger has a built-in fan which cools the battery for faster, more efficient charging