FSA 45 - $129.95 DSRP SAVE $10.00 on select models

Distributor Suggested Retail Price
FSA 45

DSRP: $129.95 $119.95


Reserve with STIHL Express for In-Store Pick Up

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
  • Zoom
    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

  • Zoom
    Adjustable front handle 
    The front handle is easily adjustable (360-degree rotation) for comfort.
  • Zoom
    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
We Also Suggest
  • Quiet Line™ Zoom
    Quiet Line™
    STIHL uses a custom blend of polymers to produce a trimmer line with the best all-around characteristics of abrasion resistance, flexibility over time and temperature ranges, and welding resistance. Quiet Line™ is available in .080” and .095” diameters and comes color-coded so that the diameter can be easily determined.



     Trimmer Chart
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.

STIHL Dealer Days are Happening Now!

FSA 45 is rated 2.8 out of 5 by 37.
Rated 1 out of 5 by from Bad choice. Requires .065 line and optional plastic blades destruct readily. Have owned many trimmers and this is the absolute worst. .065 line is too lightweight for even my small residential yard. Plastic optional blades wear down almost immediately. Company would say I am using it wrong. NOT.Will be going back to gas and a different brand. Do not want to chance another of their brand .
Date published: 2018-04-12
Rated 5 out of 5 by from Very impressive After reading the reviews I was not sure this was the trimmer to buy , after going to the store and checking it out I did purchase and it is better than I had hoped , I think the problem people have with it is they treat it like a line trimmer and get to close to metal , concrete , etc , their is no line to bump out to continue on , I have a small yard but do have a concrete slab , trees , metal pipe , if you take it easy and not keep it up against the the obstacle it is a dream trimmer , I hit all the obsicalaes and the blades are fine and I love that if you do run out of blades you can put some line in and finish the job , Great trimmer
Date published: 2018-04-07
Rated 3 out of 5 by from Not in love with it I wish it had string instead of the plastic blades. The blades wear down really fast, especially if you are trimming next to a hard surface-which is most of the time. When the blades come into contact with the ground it either stops or wants to walk on you- cutting some random stripe in the yard. It's very difficult to edge with and using it like that will mow through the blades. However, the blades are super easy to change and I like the simplicity of being battery powered. Starts every time and it's pretty light. The rotating head and shaft is a nice feature that gets used.
Date published: 2017-10-18
Rated 1 out of 5 by from This product has advertised great features but does not deliver! I will be returning this trimmer tomorrow. I have a small yard and had to restring it 8 times when half done, so gave up on that. Bought larger diameter string but it snapped off after two feet. The centripital force causes the slot to act as a razor and slices the plastic string off. Then tried the plastic blades provided. Machine would shut off after 2-3- feet. Not a good investment and a surprisingly poor STIHL prodeuct. Extremely disappointed!
Date published: 2017-09-28
Rated 4 out of 5 by from The product works very well, but the battery could use a little more longevity I have a simple yard with two walkways, and about 6 bushes to trim around. The big thing is driveway edging. My driveway is about 125 feet long (250 total), and I can't do trimming and edging on one battery charge. This might be unfair because the "average" driveway isn't than long, and for those, the battery would probably make it just fine. And, it gets through all but the last 50 feet. The product is light weight, and does a good job. Overall, I'm very happy; I just need to know that I'll have to charge it again if I do both wacking and edging on the same day. No big deal.
Date published: 2017-09-14
Rated 1 out of 5 by from Long charging time for little use I could not be more dissatisfied with the Stihl FSA 45 trimmer. It takes 3 1/2 hours for a full charge which only lasts 20 minutes. If it is not allowed to cool down before beginning the charge, red indicator lights come on. I was under the impression that Stihl products were of good quality, but sadly this is not the case with this trimmer.
Date published: 2017-08-31
Rated 5 out of 5 by from I found my trimmer Recently I suffered a stroke. The person I once was is no more. I no longer have the strength to carry a large trimmer for a long period of time. I even bought an electric trimmer to see if I could handle it. I would have to pull out 150' of power cords and after trimming. I would be exhausted. One day, I noticed my neighbor with a battery powered trimmer and he just zipped around trimming his grass. Luckily Stihl was selling the FSA 45 at what I considered a price. I bought it and tried it out. Now I just have light grass to trim around bushes and sidewalks, but it has answered my prayers. It is light, and can use poly blades or trimmer string, but I have been using the poly blades and they have done the job. It's easy to use, again light to carry and I don't have to lug all that cord out each time I trim. I have used it throughout the summer and can't find fault with it. For light trimming this is the real thing.
Date published: 2017-08-25
Rated 5 out of 5 by from My wife wanted one for her. Birthday to help me keep up with the trimming around our place. She loves it, the light weight and quiet running. We have had the trimmer for three weeks but cannot find anyone that carries the replacement blades. The dealer where we bought it keeps promising they should be in next week, but not yet. Also it looks like the blades are quite pricey. So be sure to consider the aftermarket cost and hassle when buying.
Date published: 2017-08-24
  • y_2018, m_4, d_23, h_9
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_37
  • loc_en_US, sid_fsa45, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_stihl