Makita 18V Cordless LXT 1/2" Driver Drill Kit BDF452HWB Makita built, 4-pole maximum torque motor delivers 450 in.-lbs. of efficient torque in a compact size More compact design at only 8” long and weighs only 3.5 lbs. for less operator fatigue Batteries charge 4X faster in only 15 minutes Ergonomic shape fits like a glove with even pressure and easy control Makita Lithium-Ion provides longer run time, 5x lower self-discharge (for use any time) and 16 firm holding contact terminals (for constant high power) 15-minute Rapid Optimum charger and battery communicates throughout the charging process using the built-in chip in the battery and built-in CPU chip in the charger; uses "Active 3 Control" for current control, thermal control and voltage control 15-minute Rapid Optimum charger has a built-in fan to cool the battery to produce more lifetime work Built-in LED light illuminates the work area Accepts all Lithium-Ion slide-style batteries