Description powerful motor with tech impact mechanism for maximum output torquemetal gear provides great efficient energy conveyance and durability of toolsaluminum front housing enhances excellent heat dispersion for increasing motor lifeone hand f/r switch design crafted for simple handling with one hand operationintelligent trigger allows optimal speed control during all applicationsreplaceable motor carbon brushbright led light illuminates the work areabattery power indicationergonomic comfort, Grip handle to reduce user fatigueallows installing the auxiliary handle for greater application controlspecification different styles of plug-in power adapters charger max. For. Torque 4425 in, Lb / 500 nm max. Rev. Torque 7523 in, Lb / 850 nmtype Rechargeable 18V 4. 0Ah lithium-ion battery by jpbattery, Designed for AC input of 100-240V at 50/60Hz, With a DC output of 21V and 2. 3A power usage, Including charging time 1, 2 hourcharging Functioning temperature of 0°C to 40°C, And recommended storage temperature is -20°C temperature of 40 celsiuspower Rechargeable lithium-ion battery rated at 18V and 4. 0Ah, Providing power supply for AC 100-240V / 50Hz 60hzpower consumption dc 21v 3. 0a