FSA 45 - $129.99 DSRP


Distributor Suggested Retail Price
FSA 45 w/ integrated battery

DSRP: $129.99

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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.

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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
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FSA 45 is rated 2.9 out of 5 by 58.
Rated 5 out of 5 by from Easy to use I am 5'2"..small framed..bought this to trim in between husband using gas powered trimmer, which is to big for me. I wish battery lasted longer. But we own 2 acres.. I did most of front. Around all my hardscaping..it was awesome.. it gets heavy after awhile. Battery didn't take long to charge a few hours.. blades are easy to change. May get expensive if doing whole tard. Fencing chews up blades ,but that's any trimmer issue. Highly recommend for small female or men with small to medium yards .I had plenty to do so I recharged battery while working on sweeping sidewalks, planting flowers. Ready to go again.. I needed the break I weed eater almost an hour before dead battery..Need an attachment to store on wall with trimmer price.. Easy to use.. could be lighter.. but I love it.. Not our main trimmer, we use this for in between and I use since our second or main trimmer is to big to heavy.Perfect for me..
Date published: 2017-06-29
Rated 1 out of 5 by from A Complete Waste of my money! I am very disappointed in this weed eater! I wish I had never purchased it! The battery will only last about 30 minutes and the trimmer line is so thin that you have to replace it about every 10 feet....or less. So frustrating! Half the time the trimmer line will not even stay in place and when you turn on the weed eater it shoots the trimmer line off into the grass. Again, I Wish I had not wasted my money!!! :(.
Date published: 2017-06-25
Rated 1 out of 5 by from Not a good product This has been a very disappointing purchase. Blades deteriorate will alarming speed, and come to find out the blades are nearly impossible to find! Battery life and usability not good. What a waste of money!
Date published: 2017-06-18
Rated 2 out of 5 by from do not recommend this product I purchased this product primarily for my wife -- the Stihl name is legend. The battery life is not great and finding the quickly used cutting blades is nearly impossible -- I am not a happy Stihl customer -- own their Blower and chain saws -- they are great company, but this product is not up to the Stihl standards, no matter how much they invest in advertising.
Date published: 2017-06-14
Rated 3 out of 5 by from No better than battery trimmers for half the price. I expected to get a better battery trimmer than the box-store trimmers that are half the price of the Stihl. Plastic blades hard to get and last for two trimmings at the most. SA45 power not the greatest either. Over-rated and over-priced.
Date published: 2017-06-02
Rated 2 out of 5 by from Trimmer itself is great, trimmer head not so much Purchased this product so that I could help my husband with the yard, since I don't really want to deal with gas. The trimmer itself lasted way longer than the 15 or 20 minutes it said. It lasted me about 45 minutes, using it pretty much constantly. The main problem I have is that the blades that are unique to Stihl are worn out after every use, which means I have to replace them every time. The upside is replacing them is super easy, the downside is our nearest store is a little ways away, and they don't always have the blades in stock. Since the trimmer head can't be switched out for a line trimmer head, I am kind of forced into buying these blades whenever I can find time to get to the store and when they have them in stock.
Date published: 2017-06-02
Rated 2 out of 5 by from Poor blade performance Love Stihl products but very disappointed in the blades for this product lasted only for 2 weeks, not up to Stihl standards
Date published: 2017-06-01
Rated 2 out of 5 by from Can't Use Product Due to Lack of Replacement Blades Bought the trimmer for my wife because it is light weight and doesn't require mixing fuel or an extension cord. My wife really likes this machine. Unavailability of expensive replacement blades makes this unusable machine a regrettable wall hanging in my garage. You can spend money on engineering and advertising all you want but if you can't follow through with the most basic items to make the product usable why bother?
Date published: 2017-05-29
Rated 5 out of 5 by from Love This Little Trimmer This is a great little trimmer, plenty of power and light weight, easy to use.
Date published: 2017-05-23
Rated 5 out of 5 by from Excellent product. easy to use and very lite weight.easy to use and very lite weight.
Date published: 2017-05-23
Rated 2 out of 5 by from Underperforming for my needs. I was looking for a battery powered trimmer to store at my camp and decided to try the FSA 45. I thought it would be nice to not worry about transporting fuel every time I went to camp. Being a Stihl, I was confident that I'd be happy with this trimmer so without hesitation I bought it and off to camp I went. I performed a full charge and started my trimming endeavors but was quickly disappointed. The trimmer just didn't have the power I was expecting. It would be trimming and just shut off once I hit a thick patch of grass. Getting it started is a chore because of all the switches and triggers on the handle have to be repressed. I was doing mostly continuous trimming and after about 20 minutes the battery was dead and needed recharged. Also, the plastic blades didn't cut as well as I was hoping they would. The tips wore away very quickly which decreased the cutting radius in turn increased my cutting time. The edging option was nice but it also wore the blades down even faster. The blades are cheap to purchase but you'll need to stock up on them. I would really recommend this trimmer if you have a very small area to trim. The trimmer is very lite weight and easy to store away because it is retractable. And I'm sure it will last along time because Stihl just doesn't make junk. For me, I just had to high of expectations for this trimmer and I bought the wrong one for the job. I'll be returning this for a gas trimmer. I'll probably just buy the Stihl fuel and store it at the camp because it has a two year shelf life.
Date published: 2017-05-22
Rated 1 out of 5 by from Do NOT buy this product Based on a recommendation from the Saw / Rental Shop that I buy equipment from, I purchased this unit on March 30, 2017 for my wife to use.in her garden.I tried to order extra polymer plastic blades for this unit at the time of purchase and was told "They are easy to get." BAH - HUMBUG!!!!!!It is now May 21, 2017 (6 weeks later) and the replacement blades (which are poorly made) have been back ordered by the STIHL Company time & time again - I am unable to use this piece of junk because the STIHL Company does not back-up their tools with adequate replacement parts or competent service. DO NOT BUY ANY OF THESE RECHARGEABLE BATTERY TRIMMERS!!!!t if you do,.......... "You'll be SORRY!!!!A VERY, VERY Dissatisfied Customer
Date published: 2017-05-20
Rated 5 out of 5 by from Great product if used for its intended use. I am surprised by some of the negative reviews. The product is small, light weight, intended for small yards, and quick jobs. The blades are poly blades that are solid and which are great for grass and other small weeds. Fences, concrete, rocks, and other solid objects will greatly decrease the life of the blades, however there is a metal guard on the front that you can put down to make sure you do not cut too close to such objects. I have a small 5000 sq ft. yard, I trim by lots of fence and flower beds using the guard and the first set of blades have lasted more than a month. The unit comes with 8 blades and I am still on the first set. It is different than a string trimmer and should be used accordingly. The battery life isn't incredible but again is more than sufficient when used accordingly. If you have a large yard or are planning on clearing large square foot areas, than this product is probably not for you. Again if you have a larger yard get a larger, more powerful, higher capacity battery setup, which Stihl also has.
Date published: 2017-05-19
Rated 1 out of 5 by from DO NO BUY! I have been buying Stihl gas products (trimmer, blower and hedge trimmer) for over 30 years. They are remarkable and require little maintenance. I gave that equipment to my son before moving to a community where lawn care was provided. I decided to invest in the battery powered trimmer after realizing the lawn crew was taking nicks out of the concrete around the edge of the house. Be warned, the plastic blades did far more damage in one day than the lawn crew did in a year! Since this model cannot be adapted to a string trimmer, I will look for a Stihl string trimmer. Dissaponted!
Date published: 2017-05-13
Rated 1 out of 5 by from Beware of blades The blades for this product last for one use, and are relatively expensive. The trimmer line option involves very thin line which only lasts about three or four linear feet of trimming. Upset that I wasted my money. Definitely need to consider models that have more traditional line and feed features in the trimmer head.
Date published: 2017-05-12
Rated 1 out of 5 by from Blades Dealer did not tell me not to use around fences and my concrete edging (flower garden) went through all blades .wasted my money
Date published: 2017-04-24
Rated 5 out of 5 by from Great little trimmer! I bought this trimmer to trim around my flower beds, while my husband uses the big gas trimmer elsewhere. My arm still lacks strength due to an extensive shoulder surgery, but this trimmer is very easy to handle and so adjustable that I have no problems with using it. My only recommendation is that the FSA 45 has a built-in battery, and I don't get everything done before the battery runs out (that is why is rated the POWER as GOOD and not excellent. (I do have several flower beds!) This is a perfect little trimmer for someone with a smaller area, but I wish I would have spent a few more bucks and got the next size up model, so I could have an extra battery ready to go when the first one tired out. OVERALL a great product!
Date published: 2017-04-18
Rated 5 out of 5 by from Good little unit I bought this for my 9 year old son to use when I work nights for a few weeks, so he can help me out. Super easy to change blades, lightweight and endlessly able to reconfigure the setup. Short, tall, head angle, foregrip handle......All adjustable. I own many Stihl products, and have yet to have any complaints. This is a great unit for youngsters, elderly, and the occasional person that may not be able to handle the weight of heavier gas trimmers. All that being said, this is NOT anything like my fs130r. If you're buying this thinking it's gonna have endless power and can stand up to a residential or commercial gas powered unit, it's not. Buy it for what it is, a small battery operated trimmer that is super easy to setup and use.
Date published: 2017-04-15
Rated 5 out of 5 by from This product is simple to use. I purchased this trimmer for use on my small yard in areas where grass grows between flowers, bushes, trees, etc. For an 18V trimmer, this one feels impressive and emits a kind of quiet power. I took it to a section under one of my trees that had roughly 8" of grass around it's base which I had left from mowing the day before. The trimmer trimmed around the tree while cutting the grass efficiently. I worked on several areas before it started to rain and it did a wonderful job. I used only 1/2 the battery life during the time I was trimming. This unit has two snap on cutters and spare cutters at the underside of the handle. The cutters held up well until I accidently hit a fence pole which damaged them slightly so when I trim again, I will replace them which by the way is a snap.At clean up, I noticed a couple of areas on the trimmer that hold grass and though these are easy to clean, I would recommend making sure they are cleaned after each use or the could become clogged the debris thusly making it really hard should someone need to professionally take the unit apart.All in all, I would say this is a great trimmer for anyone whom has a smaller yard or is simply looking for a cordless trimmer to do light gardening chores. To me, it's a winner!
Date published: 2017-04-13
Rated 1 out of 5 by from Don't buy this I bought this trimmer yesterday and I'm returning it tomorrow! The plastic blades are a joke. I used all 8 that came with it and only trimmed a fourth of my yard. Also it kept shutting off during use. I bought it because of the Stihl name. Big mistake
Date published: 2017-04-09
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