Oregon Cordless PS250-A6 Pole Saw Kit with 4.0 Ah Battery and Standard Charger 40V MAX Lithium Ion Power for up to 500 cuts on 2-3" branches Premium cell technology with constant no-fade power.Instant Start - Freedom from cords, No gas-oil mixing, No pull cords, No warm-up, No emissions Mid-mount motor design for better tool balance and a reduced elevated weight.Ergonomically engineered to be light-weight, balanced, low-vibration & quiet Planetary gear reduction system produces a proficient transfer of power.Compact Cutting Head - 8" Bar and cast aluminum branch removal hook allow for an improved cutting agility and increased line of sight to cut area 4 times quieter than a gas saw. Silent between cuts.