No load speed 4000 /4000-6000/8000RPM Pad size 100mm Brushless motor Charger Fast big charger 1.5Ah Charging time 2.5hours Battery 2000mAh Voltage 21V Rated voltage 110-240V Battery 21V Li-ion,2pcs x 4.0Ah Battery Same battery with cordless rotary hammer, cordless impact wrench, cordless impact screwdriver
