4gl/18 Liter Portable Electric Agriculture Pump Sprayer with 12V10Ah Lead-acid battery. Multiple spray pattern Options with variable speed PSI control switch. Working pressure can be adjusted from 2.0 bar to 4.5 bar (28-65lbs) of stream pressure. The rechargeable battery can last up to 10 hours of spraying. Option for four different spray patterns included. Easy to see DC Volt Meter shows available battery charge. Fully recharged in 3 hours