STIHL FSA 45 Integrated Li-Ion Battery Grass Trimmer (4512-011-5704)



Compact battery Grass Trimmer for straightforward trimming and clearing work in outdoor areas at home. Integrated battery with charge level indicator, shaft and
loop handle offering tool-free adjustment, adjustable mowing unit working angle (useful for vertical edge trimming among other tasks), easy to switch between PolyCut blades and mowing lines without changing the mowing head, spacer bracket.


  • Telescopic shaft
    With 8 adjustable positions along a length of 170 mm, the FSA can be optimised to match the user’s size, ensuring ergonomic working and a less tiring job – and without the need for a separate tool.
  • Adjustable loop handle
    The loop handle can be adjusted in 6 increments up to an angle of 120°.
  • Adjustable mowing head
    The mowing head can be tilted in 4 increments up to an angle of 48°.
  • Vertical edge trimming
    The mowing head can pivot through 90° for precise lawn edge trimming.
  • Charge level indicator
    The remaining working or charging time can be viewed at any time by pressing the button. Four LEDs light up, or flash green or red, to indicate the charging state or problems.
  • Storing spare blades
    The PolyCut blades can be easily replaced if worn. Up to five spare blades can be conveniently stored on the tool.
  • Spacer bracket
    The FSA 45 has a spacer bracket for precise and efficient trimming around plants and other objects. It can be folded out or down as required.
  • Activation key
    The tool can only be used with the activation key. If the key is removed, the tool switches off to guard against unintentional activation. The tool can be safely stored and transported.
  • Charger cable
    The STIHL HSA 45 draws its power from an integrated 18V lithium-ion battery. The battery is easily charged using the charger cable.
  • Compact and ergonomic
    The integrated battery cells mean that the tool is optimally balanced. The FSA is easy to handle. Its streamlined design creates plenty of room for manoeuvre.
  • Soft handle and hanging eye
    Thanks to the soft handle with lever lock function and lever, the user always has the cordless brushcutter safely under control. The eye for wall mounting means that the FSA can be safely stored in a compact space.


  • Battery Platform: AI
  • Sound pressure level (dB(A)): 77
  • Sound power level (dB(A)): 87
  • Cutting Head Type: PolyCut 2-2
  • Rated voltage (V): 18
  • Weight (kg): 2.3
  • Total length (cm): 1.100
  • Cutting diameter (mm): 250