FSA 90 R


Distributor Suggested Retail Price DSRP:   $299.95

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Professional straight-shaft trimmer powered by a 36-volt Lithium-ion battery for excellent cutting performance.

Get the benefits of Lithium-ion technology plus the power of STIHL with the FSA 90 R trimmer. This straight-shaft, battery-powered trimmer is great for landscaping in noise-sensitive or highly populated areas. Conveniently lightweight, the FSA 90 R is both portable and easy to operate. The trimmer’s high cutting speed plus its 15” cutting width will help you trim more in less time. It starts insta...Read More
Print Spec Sheets
FSA 90 R Specifications
WEIGHT w/o Battery 3.4 kg. (7.5 lbs.)
w/ AP 100 4.2 kg. (9.3 lbs.)
w/ AP 300 5.1 kg. (11.3 lbs.)
CUTTING SWATH 15"
RUN TIME (w/ AP 300) Up to 30 minutes
RUN TIME (w/ AR 900) Up to 120 minutes*
POWER SOURCE Battery
*Without battery. Battery and charger sold separately. Runtimes using ECOSPEED are substantially longer.
Model Features
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    Reduced-Emission Engine Technology - Caring for Nature
    The STIHL Inc. “Caring for Nature” seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines “low exhaust emissions” as being cleaner than EPA and/or CARB exhaust emission standards.

    More Information

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    STIHL Electric Motor
    Lightweight and compact, STIHL electric motors require minimal maintenance and feature low noise levels and reduced vibration.
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    Hanging Loop
    Hang your cordless trimmer securely on a wall to save space using the loop in the handle housing.

    See it in action!
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    Retaining Latch
    All STIHL Battery powered products feature a retaining latch that is designed to prevent the unit from unintentional starts when the battery is inserted.

    See it in action!
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    Loop Handle
    A thumb screw allows the ergonomic loop handle to be easily adjusted to the desired position without tools.

Important Information
WARNING! Improper use of any trimmer/brushcutter can cause serious or fatal injury. Read, understand and follow all safety instructions in your instruction manual. To reduce the risk of injury from blade contact, circular saw blades may be used on FS brushcutters that have a limitstop, a bicycle handle and double shoulder harness and not on FS brushcutters with a "J" handle or loop handle. Other rigid blades may be used on FS brushcutters having a bicycle handle, a "J" handle or a loop handle equipped with a barrier bar. To reduce the risk of eye injury always wear proper eye protection. Always use the appropriate deflector for the type of cutting attachment, as explained in your instruction manual.
Note: STIHL engine products with the Caring for Nature logo are cleaner than EPA Standards for exhaust emissions.
WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
Click to view the STIHL Limited Warranty Time Periods
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    View Our Usage Chart
  • AL 500 High-Speed Charger Zoom
    AL 500 High-Speed Charger
    Part of the STIHL Lithium-Ion Battery KombiSystem, the AL 500 delivers the fastest charging time for all STIHL Lithium-Ion batteries. Now, you can spend less time charging and complete your projects faster. The AL 500 will even charge the high-capacity AR 900 backpack battery in less than 2 hours. For AP 80 and AP 180 batteries, charge time is just 25 minutes! Get the most out of your STIHL system – get the AL 500 high-speed charger!

    View Our Usage Chart
For Your Safety
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    Exclusive deerhide leather provides fantastic wear properties and excellent sense of touch and feel. Naturally soft leather provides all-day working comfort. Sizes available S, M, L, XL.
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    Deputy Glasses

    Tough protection that also looks the part. The STIHL Deputy Glasses meet ANSI standard Z87.1+ and feature both protection and style. The lenses are a scratch-resistant polycarbonate that block out 99.9% of the sun’s harmful UV rays. They are also comfortable to wear, featuring a soft rubber nosepiece and dual-mold rubber temples that helps to keep the glasses in place when the head is in motion. Stop by our Dealership to check out these and other great protective eyewear styles. Shown in Brown Frame / Brown Mirror Lens. Available lens colors (Black Frame): Blue Mirror, Smoke (Brown Frame): Brown Mirror


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FSA 90 R is rated 3.7 out of 5 by 3.
Rated 5 out of 5 by from Awesome tool This is the sixth Stihl Power tool that I have purchased and I find it to be an amazing piece of equipment. I am not easily impressed, but the ease-of-use and power this trimmer has is nothing short of amazing. It is almost overkill for just trimming grass around the house, but if you have a lot of work or high grass and weeds to trim, then this is your tool. Not pictured is the shoulder strap which is very useful when cutting for long periods of time, and it also comes to safety glasses. If you're cutting anything higher than normal grass then you need to use a safety glasses, because this thing really tears up tall grasses when you grab full throttle. The electric motor has a tremendous amount of torque which is noticeable when the grass is tall, which can bog down some gas trimmers. In fact, this has so much power its hard to believe this is an electric trimmer. In the end I would definitely buy this again.Well done Stihl.
Date published: 2016-05-18
Rated 1 out of 5 by from Never again. Started to corrode after 4 months. Replaced multiple parts at the store I purchased from but continued to have problems. Now its a paperweight in the shed.
Date published: 2016-05-10
Rated 5 out of 5 by from It almost feels like you are cheating. Light, powerful and easy. If you like noise, smell of gas fumes, and soreness by repeatedly pulling the cord, this might not be the best option for you. You just unlock, press the trigger and go. Only drawback is the amount of time to drain the battery in heavy grass etc. For large properties with option for hours of weedwacking I would suggest 2 batteries and the faster recharger.
Date published: 2016-03-04
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