This sprayer eliminates the need for manual pumping and delivers steady pressure for even application of pesticides, herbicides, fungicides, and insecticides. Adjustable pressure settings from 22 to 36 psi allow users to customize spray output for different tasks, from delicate plants to tough weeds. Powered by the STIHL AS 2 battery, the SGA 30 can run up to 30 minutes* On A Single Charge�, covering up to seven full 1.25-gallon tanks.