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Professional & Farming

STIHL FSA 90 PRO Cordless Brushcutter

Product code:
  • Compact, light and easy to use tool for landscapers
  • Powerful enough to get even tough jobs done
  • ECOSPEED can lead to longer run times
This item is available for home delivery and pickup

Returns should be processed at the store selected

Select location and store to view pricing


Home Delivery - $8 (Machines arrive in a box, assembly instructions are included in the Owners Manual provided)

Store Pick Up - FREE (The store will contact you when your order is ready for collection please allow 2-3 days. Machines will be assembled by the store)

Returns & Exchanges

We will happily accept returns or exchanges up to 14 days after the date of purchase,  provided the products are in their original condition and packaging. Returns and exchanges must be made in person to the store you made your online purchase from, we do not accept courier returns or exchanges. Click here to view our full Returns Policy


The FSA 90 is a powerful and quiet Cordless Brushcutter for working on large areas of tough grass. It can be used in domestic and light commercial applications and is capable of driving a wider range of cutting attachments.

STIHL ECOSPEED allows the user to control the speed of the Brushcutter on the operating handle, this feature can increase the run time of the Battery. There is an extra guard around the nylon head to protect the garden trees and shrubs from damage. The cutting arc diameter is 260 mm, and the mowing line automatically re-adjusts when the mowing head is tapped on the ground. The bike handle is designed to provide comfort to the operator while mowing large areas.

The FSA 90 is part of our PRO Cordless System - the battery can be used on a wide range of other tools from the PRO range.

Run time with the recommended AP 300 battery: Up to 30 min

Run time with AP 100 battery: Up to 12 min

Run time with AP 200 battery: Up to 24 min

Run time with AP 300 S battery: Up to 37 min

Run time with AR 1000 battery: Up to 80 min

Run time with AR 2000 battery: Up to 120 min

Run time with AR 3000 battery: Up to 150 min


Run times quoted are based on ideal operating conditions. Times will vary depending on load and conditions. 


Rated Voltage (V)


Weight (kg)


Length no cutting tool (cm)


Standard Cutting Head

AutoCut mowing head 25-2

Standard Mowing Line Diameter (mm)


Handle Type


Power Source


STIHL Battery System


Recommended Battery

AP 300

Recommended Charger

AL 300

Charge Time with Recommended Charger

60 minutes, or to charge it up to 80%, it takes 45 minutes

Blade can be fitted


Supplied Harness

Full Harness

1) Weight without Battery
  • Quiet
    The STIHL Cordless tools are so quiet you don't even need to wear ear protection. They are ideal to use in noise sensitive areas like schools, hotels and parks.
  • Bike Handle
    Bike Handle
    When used in conjunction with a harness the bike handle enables a smooth mowing action from left to right. This handle configuration is ideal when mowing large areas.
  • STIHL Electric Motor (EC)
    STIHL Electric Motor (EC)
    The STIHL brushless electric motor (EC) is extremely energy efficient and does not require any maintenance. It ensures the tool has the optimum power output at all times. The motor runs quietly and generates very low vibrations.
    This feature enables you to control the engine speed of the Brushcutter using the operating handle.
  • Charge Level Indicator
    Charge Level Indicator
    The charge level of the Battery is indicated with the LEDs on the side of the Battery.
  • Grass Blades can be Fitted
    Grass Blades can be Fitted
    As this Brushcutter can be fitted with a grass blade it is suitable for tougher jobs in comparision to the homer user Line Trimmers.
  • AutoCut Mowing Head
    AutoCut 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.
  • Safety Lock
    Safety Lock
    Press the button to lock the Brushcutter and prevent it starting by accident.
  • Full Harness
    Full Harness
    Using a harness makes trimming work more comfortable, particularly during lengthy jobs.

Q: How Long Will the Battery Last?

A: The recommned AP 300 Battery will last up to 45 minutes, depending on the type of grass that is being cut and how the tool is being used.

Q: How long does it take to charge?

A: To fully charge the AP 300 Battery it takes 60 minutes, or to charge it up to 80%, it takes 45 minutes with the AL 300 Charger.

Q: What size garden will it maintain?

A: The FSA 90 is the ideal Brushcutter for large gardens, lifestyle blocks, farming and commercial appications.

Q: What type of cutting attachment does this use?

A: The FSA 90 uses an AutoCut 25-2 mowing head, you can buy replacement line for the head at your local STIHL SHOP.

Q: Does the performance of the Battery reduce as it depletes?

A: No there is no gradual drop in performance - the battery runs at full power until it is fully depleted.