FSA 85 Grass trimmer

Powerful and light cordless grass trimmer

The FSA 85 cordless grass trimmer is light, quiet and powerful, making it perfect for use in large gardens and noise-sensitive areas. Thanks to the cordless technology, starting this perfectly balanced string trimmer is easier than ever. Fitted with an easy-to-use AutoCut C 4-2 nylon line mowing head, trimming lawn edges and mowing smaller areas is a breeze. The practical spacer bracket that the FSA 85 cordless grass trimmer has allows you to easily trim around obstacles, trees and bushes with great ease without damaging them. Once you’ve finished trimming the grass, you can save space by using the hanging loop to hang your cordless grass string trimmer securely to a wall. The AP battery that is needed for the FSA 85 is compatible with all other STIHL AP System tools, and there is a range of batteries to choose from depending on how long you need to use the tools for.

While stocks last. Please speak with your local STIHL dealer for stock availability.

Versions Price
FSA 85 excluding battery and charger £240.00*
  • Technical data
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    Technical data Value
    Recommended battery AP 200
    Rated voltage V 36
    Weight kg 2.8
    Standard cutting tool AutoCut C 4-2
    Run time with AP 100 min 1) up to 18
    Run time with AP 200 min 1) up to 36
    Run time with AP 300 min 1) up to 45
    Run time with AP 300 S min 2) up to 56
    Weight without battery kg 3) 2.8
    Cutting tool AutoCut C4-2
    Sound pressure level dB(A) 4) 77
    Sound power level dB(A) 4) 94
    Vibration value, left, with line head m/s2 5) 1.4
    Cutting diameter mm 350
    Vibration value, right, with line head m/s2 5) 0.8
    Total length cm 6) 165
    Cordless technology AP System

    1) Run times may vary depending on the application
    2) Battery life times are approximate and may vary depending on application
    3) Without battery and charger
    4) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
    5) K-factor according to DIR 2006/42/EC = 2m / s ²
    6) Without cutting attachment

  • Features
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    Standard features

    • Hanging loop

      Hang your cordless brushcutter securely on a wall to save space using the loop in the handle housing.

    • Spacer bracket

      Practical spacer bracket for mowing along obstacles and around trees and bushes.

    • Safety locking button

      All STIHL battery products have a locking button with which you can lock the device. This prevents the grass trimmer starting unintentionally when a live battery is inserted.

    • STIHL Electric Motor (EC)

      The STIHL electric motor (EC) is extremely energy efficient, lightweight and compact. It runs quietly, generates very low vibrations and does not require servicing.

    • Loop handle

      The loop handle is ideal for working in confined spaces, eg tidying between shrubs and bushes.

  • Cutting Attachments
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    • AutoCut C 4-2 mowing head
      AutoCut C 4-2 mowing head

      Double mowing lines, for trimming work around the garden. Mowing lines are automatically extended when the mowing head is tapped on the ground. With comfort grip for easy re-loading. Compatible with 2.0 mm diameter, round mowing line.


      AutoCut 4-2 – for FSA 65 / FSA 85

      Versions Price
      AutoCut C 4-2 - 2.0 mm £22.75* Save and compare
      Save and compare
    • Round mowing line (rolls)
      Round mowing line (rolls)

      This high performance mowing line can be used universally and is available in many different diameters for all STIHL line mowing heads. Suitable for all trimming and mowing jobs and specially developed against fraying and fusing.

      STIHL professional tip - leave your new mowing line in water for 24 hours before use. This will increase the flexibility and lifespan of the mowing line.

      Versions Price
      Roll Ø 2.0 diameter (mm) x 14.0 roll length (m) - green £4.40* Save and compare
      Save and compare
    • Round mowing line (rolls)
      Round mowing line (rolls)

      This high performance mowing line can be used universally and is available in many different diameters for all STIHL line mowing heads. Suitable for all trimming and mowing jobs and specially developed against fraying and fusing.

      STIHL professional tip - leave your new mowing line in water for 24 hours before use. This will increase the flexibility and lifespan of the mowing line.

      Versions Price
      Roll Ø 2.0 diameter (mm) x 60.0 roll length (m) - green £11.60* Save and compare
      Save and compare
    • Round mowing line (rolls)
      Round mowing line (rolls)

      This high performance mowing line can be used universally and is available in many different diameters for all STIHL line mowing heads. Suitable for all trimming and mowing jobs and specially developed against fraying and fusing.

      STIHL professional tip - leave your new mowing line in water for 24 hours before use. This will increase the flexibility and lifespan of the mowing line.

      Versions Price
      Roll Ø 2.0 diameter (mm) x 119.0 roll length (m) - green £17.20* Save and compare
      Save and compare
    • Round mowing line (rolls)
      Round mowing line (rolls)

      This high performance mowing line can be used universally and is available in many different diameters for all STIHL line mowing heads. Suitable for all trimming and mowing jobs and specially developed against fraying and fusing.

      STIHL professional tip - leave your new mowing line in water for 24 hours before use. This will increase the flexibility and lifespan of the mowing line.

      Versions Price
      Roll Ø 2.0 diameter (mm) x 360.0 roll length (m) - green £41.50* Save and compare
      Save and compare
  • Accessories
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    • AP 100 Battery

      Compatible with the AP System. Light weight 36v Lithium-Ion battery with charge level indicator (four LEDs). 94 Wh battery energy, weight 0.8 kg. Compatible with all AL chargers; AL 101, AL 300 and AL 500. Click on the technical data tab of individual products to learn more about machine run times.

      Battery weight kg 0.9
      Rated voltage V 36
      Capacity Wh 0) 94
      Nominal cell capacity (according to manufacturer) Ah 2.6
      Battery cell technology LITHIUM-ION
      Capacity ah 2.4
      Charge voltage V 42
      Temperature range °C 5-40
      Discharge temperature range °C -10-50

      1) Energy content according to cell manufacturer specification. To increase the service life, the energy content available in the actual application is lower.

      Versions Price
      AP 100 £110.00* Save and compare
      Save and compare
    • AP 200 Battery

      36 V, 4.8 ah Lithium-Ion battery. The AP 200 offers excellent run times on our cordless tools. The battery has an integrated LED charge indicator, clearly displaying as and when the battery needs charging. Compatible with the AL 101, AL 300 and AL 500 charger unit. Click on the technical data tab of individual products to learn more about machine run times.

      Battery weight kg 1.3
      Rated voltage V 36
      Capacity Wh 0) 187
      Nominal cell capacity (according to manufacturer) Ah 2.6
      Battery cell technology LITHIUM-ION
      Capacity ah 4.8
      Charge voltage V 42
      Temperature range °C 5-40
      Discharge temperature range °C -10-50

      1) Energy content according to cell manufacturer specification. To increase the service life, the energy content available in the actual application is lower.

      Versions Price
      AP 200 £140.00* Save and compare
      Save and compare
    • AP 300 Battery

      Powerful 36 V, 6.0 ah Lithium-Ion battery. The AP 300 offers increased run times for those bigger jobs. The battery has an integrated LED charge indicator, clearly displaying as and when the battery needs charging. Compatible with the AL 101, AL 300 and AL 500 charger unit. Click on the technical data tab of individual products to learn more about machine run times.

      Battery weight kg 1.8
      Rated voltage V 36
      Capacity Wh 0) 227
      Nominal cell capacity (according to manufacturer) Ah 2.1
      Battery cell technology LITHIUM-ION
      Capacity ah 6
      Charge voltage V 42
      Temperature range °C 5-40
      Discharge temperature range °C -10-50

      1) Energy content according to cell manufacturer specification. To increase the service life, the energy content available in the actual application is lower.

      Versions Price
      AP 300 £190.00* Save and compare
      Save and compare
    • AP 300 S Battery

      The AP 300 S is a high capacity Lithium-Ion battery that will power any tool within the STIHL AP System. With an energy capacity of 281 Watt-hours (which relates to run time), this battery offers an impressive 25% increase in capacity compared to the AP 300, and with an Amp-hour capacity of 7.8, this battery will consistantly power AP System tools for longer. The four LED lights let you know how much charge is left within the battery.

      Battery weight kg 1.8
      Rated voltage V 36
      Capacity Wh 0) 281
      Nominal cell capacity (according to manufacturer) Ah 2.6
      Battery cell technology LITHIUM-ION
      Capacity ah 7.2
      Charge voltage V 42
      Temperature range °C 5-40
      Discharge temperature range °C -10-50

      1) Energy content according to cell manufacturer specification. To increase the service life, the energy content available in the actual application is lower.

      Versions Price
      AP 300 S battery £250.00* Save and compare
      Save and compare
    • AL 101 Standard charger

      230 V charger, recommended for STIHL AK System batteries. With operating mode indicator (LED) and passive battery cooling. Cable tie with Velcro strap.The charger can be wall mounted if required.

      The standard charger will fully charge an AK 10 battery in 95 minutes, AK 20 in 180 minutes and AK 30 in 205 minutes.

      The standard charger will fully charge an AP 100 battery in 100 minutes, AP 200 in 200 minutes, AP 300 in 250 minutes and AP 300 S in 300 minutes.

      Rated voltage V 220-240
      Weight kg 0.7
      Rated current A 0.7
      Charge time - AK 10 battery min 0) 95
      Charge time - AK 20 battery min 0) 180
      Charge time - AK 30 battery min 0) 205
      Charging time AP 200 min 0) 200
      Charging time AP 300 min 0) 250
      Charging current A 1.6
      Power output kW 0.1
      Protection class II

      1) Charge time in minutes to 100% capacity
      2) Charge time in minutes to 100 % capacity
      3) Up to 100 % capacity

      Versions Price
      AL 101 charger £40.00* Save and compare
      Save and compare
    • AL 300 Quick charger

      Quick charger for STIHL Lithium-Ion batteries. With operating mode indicator and active battery cooling.

      The quick charger will fully charge an AK 10 battery in 45 minutes, AK 20 in 55 minutes and AK 30 in 60 minutes.

      The quick charger will fully charge an AP 100 battery in 50 minutes, AP 200 in 55 minutes, AP 300 in 75 minutes and AP 300 S in 70 minutes.

      Weight kg 1.2
      Mains voltage V 220-240/50
      Charging time AR 1000 min 0) 180
      Charging time AP 200 min 0) 55
      Charging time AP 300 min 0) 75
      Charging time AR 2000 min 0) 250
      Charging time AR 3000 min 0) 300
      Rated voltage V 220-240
      Power output kW 0.3
      Weight kg 0) 1.2
      Rated current A 2.3
      Protection class II
      Charging current A 6.5

      1) Up to 100 % capacity
      2) 0

      Versions Price
      AL 300 quick charger £70.00* Save and compare
      Save and compare
    • AL 500 Hi-speed charger

      The quickest charger for STIHL Lithium-Ion batteries. With operating mode indicator and active battery cooling.

      The hi-speed charger will fully charge all the AP System batteries in 45 minutes. The AL 500 is highly recommended to charge the AR 2000 L(150 min) and AR 3000 L (220 min) backpack batteries.

      Charging time AR 1000 min 0) 120
      Weight kg 1.3
      Charging time AR 2000 min 0) 130
      Charging time AR 3000 min 0) 160
      Rated voltage V 220-240
      Power output kW 0.6
      Weight kg 0) 1.3
      Rated current A 2.6
      Protection class II
      Charging current A 12

      1) Up to 100 % capacity
      2) 0

      Versions Price
      AL 500 Hi-speed charger £120.00* Save and compare
      Save and compare
    • AR 1000 Backpack battery

      Lithium-Ion backpack battery with a large capacity for longer running times. Designed to work with the AP System. Sturdy housing with base and charge level indicator (six LEDs), comfortable and ergonomically harness with integrated carry handle and rain protection cover. 626 Wh battery energy, weight 5.5 kg. Click on the technical data tab of individual products to learn more about machine run times.

      Battery cell technology LITHIUM-ION
      Capacity Wh 0) 626
      Capacity ah 16.6
      Charge voltage V 41
      Battery weight kg 4.3
      Temperature range °C 5-40
      Rated voltage V 36
      Weight with carrying system kg 5.5
      Rated capacity Ah 17.4
      Nominal capacity cell (according to manufacturer) Ah 2.9

      1) Energy content according to cell manufacturer specification. To increase the service life, the energy content available in the actual application is lower.

      Versions Price
      AR 1000 £648.00* Save and compare
      Save and compare
    • AP holster with connecting cable

      Makes it possible to transfer energy between a STIHL AP battery and a tool with a socket. Can be combined with the battery belt carrying system with harness. Cable length: 120 cm. With integrated electronics for overload switching with acoustic signals. For use with STIHL AP System tools that require a connecting cable.

      Versions Price
      AP holster with connecting cable £135.00* Save and compare
      Save and compare
    • AP adapter

      For power transfer between a STIHL AP battery in combination with an AP holster with connecting cable, or a STIHL AR and AR L battery and a power tool with a battery slot, and for charging in combination with AL 300 or AL 500.

      Versions Price
      Adapter AP £40.00* Save and compare
      Save and compare
    • AP battery belt with harness

      Sturdy and ergonomically shaped belt with comfortable harness for weight distribution across hips and shoulders. Reduced total weight in the hand, as the battery in the AP holster with connecting cable is worn on the belt. Power is transmitted in combination with additional accessories, such as by the AP holster with connecting cable for tools with a socket, and additionally with an AP adapter for tools with a battery slot.

      Versions Price
      Battery belt with harness £43.50* Save and compare
      Save and compare
    • Spacer bracket

      Practical spacer bracket for use when mowing around trees and other objects. Can be used with FSA tools in both the AK System and AP System as well as the FSE 52.

      Versions Price
      For FSA 85 £11.60* Save and compare
      Save and compare
    • Carry bag for STIHL battery accessories

      Soft bag for safe transport and storage of up to 2x AK or AP System batteries and 1x STIHL charger.

      Versions Price
      Carry bag for STIHL battery accessories £23.00* Save and compare
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  • Documents
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    Owners manuals

* Manufacturer's recommended retail price updated as of February 2021. The manufacturer's recommended retail prices are subject to change without notice.

The version(s) available in each country may differ from the above range and specifications; specific details may be subject to change without notice. Please ask your local STIHL Approved Dealer for further information.