Dan from Wisconsin Rapids writes
The battery for the ShurFlo unit is located in the back of the sprayer behind the padded panel that protects your back from the tank and attaches to the straps that come over your shoulder. You can loosen the straps and pull the padded piece to the side to then unlock the battery and remove it from the unit. The weight of the whole sprayer is roughly 16lbs empty.
Answer last updated on: 06/21/2015