The brand new GroundWork 4 gal. Backpack Lithium Ion Sprayer features a self-contained built-in Li-Ion battery pack capable of spraying 12 full tanks on a full charge, and is ergonomically designed to ...

Let’s start with the basics. These sprayers come with tanks that start at 1 quart capacity and go all the way up to 4 and 5 gallons. A 1-quart is pretty useless unless you have a tiny garden.