HUSQVARNA OUTDOOR POWER EQUIPMENT 536LiL Battery Power Advanced brushless motor delivers 25% more efficiency for improved power and consistent torque. Gas powered performance with the lightweight yet long lasting Lithium-Ion power source Near silent operation and minimal noise pollution compared to a standard gas powered unit Intuitive On/Off keypad for simple unit start ups and shutdowns Convenient savE mode reduces power for lighter duty tasks to help improve battery life and runtime