The full range of 16v and 20v brushless systems gives you variable speed control and a safe braking system with a versatile battery and allows for a large number of charge cycles Battery voltage:20v Max diameterï¼?30mm Charging time:1h Delivery time:30 days for OEM,15 days for ready goods Payment method:T/T,L/C Standard accessory:BMC BOX*1,battery*2,charger*1