Designed to allow the professional to cover up to 23,000 square feet on a single tank of fluid (coverage per tank is determined by internal testing using flow rate and particle size). Voltage: 16.8V; Run time: 4 hours per charge; Charge time: 90 minutes. Flow rate: 40 micron/3.4 oz. per minute, 80 micron/5.1 oz per minute, 110 micron/13.4 oz per min. Nozzle spray sizes: 40micron full cone, 80 micron full cone, 110 micron 120° fan. Optimum spray distance: 4' - 6'. Battery: 16.8V 3400mAh Lithium-Ion. ea