Spray continuously up to 2 hours (58 gallons) on single charge with Chapin's 63924 4-gallon 24V lithium-ion battery wide-mouth backpack sprayer. It only takes 3.5-4 hours to recharge when needed. The poly tank is chemical-resistant along with its seals, so you can choose professional-grade lawn and garden chemicals. It comes with 3 filters to increase spray quality and decrease the amount of possible debris from clogging the unit. One in the shut-off valve, one inside the tank, and one is the filter basket in the tank opening. All filters can be removed and cleaned when needed. Choose between 3 different nozzles depending on your spray application – adjustable brass, adjustable poly, or poly fan. Spray comfortably with the poly-cushioned grip shut-off, padded backpack straps, 20-inch poly extension wand, and 48-inch poly reinforced hose. Designed and produced in the USA at Chapin’s home base in Batavia, NY. This backpack sprayer is backed by Chapin’s 2-year limited warranty. Battery charger is included.