FSA 45 - $129.95 DSRP

Distributor Suggested Retail Price
FSA 45 w/ integrated battery

DSRP: $129.95

An affordable string trimmer including a built-in battery and adjustable shaft length.

With its integrated battery, the FSA 45 string trimmer is a great choice for occasional use on small properties. Part of the AI Series, the FSA 45 comes standard with the STIHL PolyCut™ 2-2 mowing head, making it ideal to cut in hard-to-reach places and large areas of tall grass. This STIHL AI Series trimmer is lightweight at only 5.1 lbs. (including battery) and can trim the length of three footb...Read More
Print Spec Sheets
FSA 45 Specifications
CUTTING WIDTH 23 cm (9")
RUN TIME (w/ Integrated Battery) With STIHL PolyCut™: Up to 20 min.
With line: Up to 12 min.
WEIGHT (w/ Integrated Battery)* 2.3 kg (5.1 lbs.)
*Weight without cutting attachment or guard. Comes with integrated battery and charger.
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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    Compact, ergonomic design
    The compact, ergonomic design provides more comfortable use.
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    Lightweight Portability
    Great for maneuverability and extended use.
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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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    Activation Key
    When removed, the activation key helps prevent accidental use/startup of the product. Battery will still charge with activation key removed – charge lights also work as well
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    Battery Indicator Lights 
    This product is equipped with built-in indicator lights, showing the battery status and remaining level of charge.
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    Rubberized Soft Touch Handle 
    Soft rubber texture is both easy to grip and makes the product comfortable to hold for extended periods. 
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    Loop Handle
    A thumb screw allows the ergonomic loop handle to be easily adjusted to 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
For Your Safety
  • Camo Glasses Zoom
    Camo Glasses
    Style and protection come together with STIHL Camo Frame Glasses. These eye protection goggles are wrapped in camouflage print and provide 99% UV protection. Soft rubber temple tips and nosepiece help maintain fit and while reducing slippage.
  • STIHL Landscaper Series™ Gloves Zoom
    STIHL Landscaper Series™ Gloves
    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.
  • Reusable Ear Plugs Zoom
    Reusable Ear Plugs
    Top-quality hearing protection you can keep in your pocket. NRR 27 Reusable Ear Plugs from STIHL feature multiple layers of air cushioning for superior noise reduction and long-lasting comfort. Their tapered design provides a secure seal that keeps you protected almost anywhere – from the shooting range to the job site. And thanks to the included nylon cord and carrying case, you can keep your ear plugs handy for the long haul.

Are You Ready for a STIHL?

FSA 45 is rated 2.9 out of 5 by 58.
Rated 5 out of 5 by from Excellent trimmer for small jobs. Cannot imagine why anyone would buy another brand. The adjustable length made it ideal. This was my first Stihl product. There will be more.
Date published: 2018-08-02
Rated 1 out of 5 by from Disappointed I purchased this product because of its nice design, great adjustability features and size. And it was cordless. I have a smaller yard that I needed something to edge with. I went through the whole pack of 6 plastic proprietary blades to do less than 200 feet. I tried using the regular line. But those snapped off at the head within 10 feet each time. After charging overnight, the battery lasted only 15 minutes. An hour charge lasted 5 minutes. I charged twice just to finish. So I returned this item and bought a corded trimmer. Not sure why this product made it onto the sales floor.
Date published: 2018-07-24
Rated 5 out of 5 by from FSA-45 No more tied to a power cord, noisy 2-cycle engine or filament style that never advance filament length correctly. I love how blades are equally effective and exchange so easily. So tired of fussing over filament spools for simple home yard work. Why did I take so long to buy a Stihl?
Date published: 2018-07-04
Rated 2 out of 5 by from this product is lightweight OMG I thought this was going to be the best when I tried it on for size in the store. Received as a gift and tried it outside, I did not get through weed eating my yard in 3 charges. Battery does not last long enough and the majority of my trimming is along driveway, sidewalks and decorative rock landscape, so needless to say I have to replace the plastic blades quite often. The versatility of length and turning capabilities is great. But the amount of time I now have to spend weed eating is much longer due to low battery issues. I do not have a big yard, but lots to trim around. I sure hope the blades are cheap.
Date published: 2018-07-01
Rated 5 out of 5 by from Awesome Weed Eater Bought a FSA 45 from the local ACE Hardware. The Stihl works great! We really like the blades - alot better than having to use the cord. Lightweight and has plenty of power. Cut down a 1/2 acre of Johnson grass with two charges on the battery using the same blades both times.Happy Consumer in Texas
Date published: 2018-06-25
Rated 1 out of 5 by from Lost key It worked great once until the key popped out never to be found again and now it won’t start. Ridiculous design!
Date published: 2018-06-22
Rated 1 out of 5 by from Not happy The blades on this trimmer are crap. Can’t put a spool in. Not happy. Would not have purchased if I would have known how crappy the blades were. Have to loop string in if I want to use string.
Date published: 2018-06-20
Rated 2 out of 5 by from Blades are not durable Have only used product once. My yard is not large or extreme in edging requirements. The blades wear down WAY too fast. Edging usually means trimming close to fencing, concrete, etc...... and these blades are woefully inadequate for this purpose. Everything else could be perfect but if one critical component ‘fails’ routinely then the entire package is wasted. Make the blades longer and stronger....please.
Date published: 2018-06-16
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