FSA 90, tool only
Powerful cordless brushcutter with bike handle
General
Cordless brushcutter for working on large areas of tough grass. Diameter of cutting circle 260 mm with grass cutting blade, bike handle, engine controls with ECOSPEED partial load function, double shoulder harness, no ear protection required, weight 3.2 kg.
Versions
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FSA 90
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Technical specifications

Technical specifications
Technical specifications | Value |
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Rated voltage | 36 V |
Weight 1) | 3,2 kg |
Cutting diameter | 380 mm |
Vibration level, left/right with plastic tool 2) | 3,5/3,5 m/s² |
Vibration level, left/right with metal tool | 1/1 m/s² |
Total length 3) | 177 cm |
Cutting tool | Grass cutting blade 260-2 |
Battery Technology | Lithium-Ionen AP-System |
Recommended battery | AP 300 |
Battery life time AP 200 4) | 30 min |
Battery life time AP 300 4) | 45 min |
Battery life time AR 1000 4) | 120 min |
Battery life time AR 2000 4) | 180 min |
Battery life time AR 3000 4) | 220 min |
Battery life time AP 100 4) | 15 min |
1) Weight excluding battery, with cutting tool and guard
2) K-factor according to DIR 2006/42/EC = 2m / s ²
3) Without tools
4) Battery life times are approximate and may vary depending on application
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Features

Standard equipment
Retrofitted equipment
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Cutting Tools

Cutting Tools
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GrassCut 250-32, low spin
Flying stones and gravel often create problems when mowing with clearing saws on traffic islands or in public parks and green spaces. STIHL has the answer: the low-spin 250-32 grass-cutting blade with KWF certificate reduces the safety distance from objects and vehicles to three metres. Thanks to the special tooth shape, the risk of particles flying around is reduced to a minimum. The result is greater safety, maximum working comfort and quicker results. Article 4001 713 3813 for FS 80 , FS 85 , FS 89 , FS 91 , FS 111 , FS 131 , FSA 130, FSA 135, FSA 130 R, FSA 135 R, FS 94 RC-E , FS 94 C-E , FSA 90 R, FSA 90, FS 240 C-E, FR 131 T, FR 480 , FR 480 C-F, FR 410 C-E , FR 460 TC-EM. Article 4001 713 3812 for FS 260 C-E, FS 311, FS 360 C-EM , FS 410 C-EM ,FS 410 C-EM L, FS 410 C-EM K , FS 460 C-EM K , FS 490 C-EM K , FS 490 C-EM K, FS 460 C-EM , FS 460 C-EM L , FS 490 C-EM , FS 490 C-EM L, FS 510 C-EM, FS 560 C-EM.
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GrassCut Grass cutting blade 250-44
Low-throw, steel grass-cutting blade with 44 teeth (diameter: 250 mm). Clippings are not scattered, and the risk of stones flying up as debris is low. Ideal for mowing tough, dry grass and stubborn weeds. Suitable for reeds and bushes. Use only with the universal guard.
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GrassCut Grass cutting blade (4 blades)
Made of steel. With four cutters for mowing thick, dry grass and reeds
Versions
- Grass cutting blade 230 mm (4 blade)
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DuroCut mowing head 20-2
Double lines, for mowing and thinning work. Up to four lines can be easily inserted. Compatible with many different sizes and types of mowing line.
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Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Accessories

Accessories
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Carrying system for ARL
Carrying system for toolfree attachment of AR 2000 L and AR 3000 L.With 3-setting length-adjustable shoulder straps for individual size adjustment, and flexible hip belt for ergonomic working. Power is transferred in combination with the connecting cable and, as an optional extra, the AP adapter.
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AL 101 charger
230 V. Compatible with STIHL AK and AP batteries. With charge-level indicator (LED). Cable tie with Velcro tape. Wall-mounting possible.
Technical specifications Value Charging current 1,6 A Power output 0,08 kW Charging time AK 10 1) 95 min Charging time AK 20 1) 180 min Weight 0,7 kg 1) Up to 100 % capacity
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AL 300 quick charger
AL 300 quick charger 230 V. For STIHL AP and AR batteries. Device in housing base for wall mounting and cable rewind, with operating mode indicator (LED) and active battery cooling.
Technical specifications Value Rated voltage 220-240 V Power output 0,3 kW Weight 2,6 Pounds Weight 1,2 kg Rated current 2,3 A Charging current 6,5 A -
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AL 500 hi-speed charger
230 V. For shorter charging times, for STIHL AK, AP and AR batteries. Mechanism in housing base for wall-mounting and cable rewind, with operating mode indicator (LED) and active battery cooling.
Technical specifications Value Rated current 2,6 A Charging current 12 A Weight 1,3 kg Weight 2,9 Pounds Power output 0,6 kW Rated voltage 220-240 V Versions
- AL 500
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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.
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ADVANCE universal harness, fluorescent orange
High visibility. Perfectly complements protective clothing when mowing in hazardous areas, with a comfort carry ring for quickly attaching and removing the clearing saw, for FS 50 – FS 560 and FSA 90.
Versions
- ADVANCE universal harness, fluorescent orange
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Carrying system Battery belt
Durable and ergonomically shaped belt with battery bag for carrying STIHL AP batteries. The battery is worn on the battery belt, reducing the total weight in your hands. Energy is transferred from the battery in the bag to the tool via a flexible cable and the lightweight AP adapter.
Versions
- Battery belt
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AL 500 hi-speed charger
230 V. For shorter charging times, for STIHL AK, AP and AR batteries. Mechanism in housing base for wall-mounting and cable rewind, with operating mode indicator (LED) and active battery cooling.
Technical specifications Value Rated current 2,6 A Charging current 12 A Weight 1,3 kg Weight 2,9 Pounds Power output 0,6 kW Rated voltage 220-240 V -
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ADVANCE X-TREEm forestry harness
Offering outstanding ergonomic design, specially developed for long periods of forestry work using circular saws. Highly comfortable to wear due to the length-adjustable back section and infinitely variable load distribution between the shoulders and hips, for FS 89 – FS 560, and FSA 90.
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Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Battery

Battery
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AP 100
Compatible with the STIHL cordless power system. Light weight 36v Lithium-Ion battery with charge level indicator (four LEDs). 94 Wh battery energy, weight 0.8 kg.
Technical specifications Value Battery weight 0,9 kg Rated voltage 36 V Energy content 1) 94 Wh Battery cell technology LITHIUM-ION 1) Power capacity according to the specifications of the cell manufacturer. The actual power capacity available during operation is lower, to increase service life
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AP 200
Compatible with the STIHL cordless power system. Light weight 36v Lithium-Ion battery with charge level indicator (four LEDs). 187 Wh battery energy, weight 1,3 kg.
Technical specifications Value Battery weight 1,3 kg Rated voltage 36 V Energy content 1) 187 Wh Battery cell technology LITHIUM-ION 1) Power capacity according to the specifications of the cell manufacturer. The actual power capacity available during operation is lower, to increase service life
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AP 300
Very powerful lithium-ion batteries with charge level indicator (four LEDs). 227 Wh battery power.
Technical specifications Value Battery weight 1,8 kg Rated voltage 36 V Energy content 1) 227 Wh Battery cell technology LITHIUM-ION 1) Power capacity according to the specifications of the cell manufacturer. The actual power capacity available during operation is lower, to increase service life
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AP 300 S
Very powerful lithium-ion batteries with charge level indicator (four LEDs). 281 Wh battery power.
Technical specifications Value Battery weight 1,8 kg Rated voltage 36 V Energy content 1) 281 Wh Battery cell technology LITHIUM-ION 1) Power capacity according to the specifications of the cell manufacturer. The actual power capacity available during operation is lower, to increase service life
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AR 1000 backpack battery
Backpack lithium-ion batteries with big capacity for longer running times. 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.
Technical specifications Value Rated voltage 36 V Battery cell technology LITHIUM-ION -
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AR 2000 backpack battery
Backpack lithium-ion batteries with big capacity for longer running times. Sturdy housing with base and charge level indicator (six LEDs), comfortable and ergonomically harness with integrated carry handle and rain protection cover. 916 Wh battery energy, weight 7.8 kg.
Technical specifications Value Rated voltage 36 V Battery cell technology LITHIUM-ION PRO Battery life BGA 100 (Step 2) 1) 80 min 1) Battery life times are approximate and may vary depending on application
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AR 3000 backpack battery
Backpack lithium-ion batteries with big capacity for longer running times. Sturdy housing with base and charge level indicator (six LEDs), comfortable and ergonomically harness with integrated carry handle and rain protection cover. 1,148 Wh battery energy, weight 6.8 kg excluding / 8,1 kg including carrying system. With rain protection.
Technical specifications Value Rated voltage 36 V Battery cell technology LITHIUM-ION Battery life BGA 100 (Step 2) 1) 160 min 1) Battery life times are approximate and may vary depending on application
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AR 2000 L backpack battery
Backpack lithium-ion batteries with 1000 Wh capacities for long battery life. USB connection, and Bluetooth® interface for connection with STIHL connected. Sturdy housing with integrated carry handle and charge-level indicator (six LEDs). Can be directly connected with RMA 765 V. In combination with the AR L carrying system and AR L connecting cable, suitable for tools with a socket and in combination with an AP adapter for tools with a battery slot. Can be used in the rain. Excluding connecting cable, AP adapter and harness.
Technical specifications Value Rated voltage 36 V Battery cell technology LITHIUM-ION -
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AR 3000 L backpack battery
Backpack lithium-ion batteries with 1500 Wh capacities for long battery life. USB connection, and Bluetooth® interface for connection with STIHL connected. Sturdy housing with integrated carry handle and charge-level indicator (six LEDs). Can be directly connected with RMA 765 V. In combination with the AR L carrying system and AR L connecting cable, suitable for tools with a socket and in combination with an AP adapter for tools with a battery slot. Can be used in the rain. Excluding connecting cable, AP adapter and harness.
Technical specifications Value Battery cell technology LITHIUM-ION Rated voltage 36 V -
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Documents
Owners manuals and safety brochures
Languages | Date | Link |
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23.03.2023 |