These Battery Operated Knapsack Sprayer have tank capacity of 16 or 18 Litre. It provides atleast 4-5 hours time of spraying in 8AH battery and in 12AH Battery you can expect 9-10 hours of spraying. Extra large fill opening prevents spills when adding liquid to the 16 Litre tank. The tough, poly tank is translucent, making it easy to see liquid level inside. Includes AC charger that completely charges battery fast as possible.