The Field King pro Max 190515 lithium-ion battery powered 4 gallon backpack sprayer consists of an ergonomic design modeled after the existing Field King 190328 no-leak pump backpack sprayer. With integrated battery storage, this design ensures the equipment is protected from the elements & liquids during filling & spraying. With the 24 foot vertical spray height, this easily cleanable & maintainable sprayer is ideal for professionals applying herbicides, insecticides, fungicides, fertilizers & other water-based chemicals in hard to reach areas. With 4 hours of spray time andup to 50 gallon sprayer volumeper charge, this sprayer is perfect for Weed prevention, Weed remediation, & pest control.