FSA 56

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This battery-powered trimmer combines great power and lightweight portability. 

Product Description

The FSA 56 delivers STIHL performance and exceptional value. It features an adjustable shaft to fit different user heights for enhanced comfort. Its AutoCut® head feeds out new line with just a tap on the ground. And you can trim the length of five football fields on a single charge – that’s up to 0.31 miles. This STIHL AK Series battery trimmer is also just 7.3 lbs. (including AK 10 battery) for easy portability and maneuverability. And when you’re done, hang it on the wall from its onboard hanging slot. 

Usage claim tested and verified by an independent third-party test laboratory. Run time may vary based on battery type, charge level and capacity, model, operating style and conditions.  Batteries and chargers can be purchased separately or as a combined set with tool. 

View Our Usage Chart

Video | Replace AutoCut® 2-2 Trimmer Head

Video | Rewind AutoCut® 2-2 Trimmer Head

Model Features

  • 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

  • Rubberized Soft Touch Handle 
    Soft rubber texture is both easy to grip and makes the product comfortable to hold for extended periods.  
  • Lightweight Portability
    Great for maneuverability and extended use.


28 cm (11")
WEIGHT* (w/ Recommended Battery)
w/ AK 10 3.3 kg. (7.3 lbs.)
AK Series
RUN TIME (w/ AK 10)
Up to 17 minutes (Recommended combination)
RUN TIME (w/ AK 20)
Up to 40 minutes
RUN TIME (w/ AK 30)
Up to 60 minutes
*Weight without cutting attachment or guard. Batteries and chargers can be purchased separately or as a combined set with tool.

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.


FSA 56 is rated 3.0 out of 5 by 195.
Rated 1 out of 5 by from Problems since day 1 I will never ever purchase any Stihl products again! Plus you can’t find replacement parts online
Date published: 2019-09-29
Rated 1 out of 5 by from Returned it within a week I ended up giving this back to the store taking the money and buying 2 Toro batteries for my old weed eater. Enough said…
Date published: 2019-09-25
Rated 3 out of 5 by from 56 battery powered trimmer I like the trimmer. It is light enough to handle, do wish the battery would last a little longer. But my complaint is with the pre-wound string. It breaks off inside the white plastic band that covers the string and the only way to get to the string is to take the white band off. Stihl needs to improve this problem
Date published: 2019-09-20
Rated 5 out of 5 by from Light, rugged, reliable, andexcellent battery life. Nice lightweight design easy to adjust FSA 57 stihl. Powerful and reliable. For people looking to get the job done this machine is all u need. Thank you again stihl for selling me another great product and keep up the great line of products u are putting out.
Date published: 2019-09-19
Rated 2 out of 5 by from Battery and Trimmer Good but String Spool is Terrible First time I used the trimmer the string snapped at the spool and inside the plastic cover on the spool so that it is virtually impossible to fish the line out. I guess I will have to buy a new spool in order to use the trimmer. That is certainly not a strong recommendation for this device!! I have spent hours attempting to get one of the two ends out from under the plastic cover on the spool. I get one end out but I can't get the second one. To say I am frustrated is an understatement!!!
Date published: 2019-09-18
Rated 4 out of 5 by from I like the battery life The shaft is too long even with the adjustment. I am 5'9" but still have to lift the back of the unit to trim close.
Date published: 2019-09-16
Rated 3 out of 5 by from lite weight Always reed stringing it . Will not recommend this trimmer to any one
Date published: 2019-09-09
Rated 4 out of 5 by from Good for the homeowner I love everything I bought in the ak series. This was the most underpowered. For the price, I’m very happy. My wife went to town on our overgrown backyard and complained very minimal. Considering she complains about everything, I’d say that this is perfect for her. Small trees that are sprouting around other trees forgotten about for a few months will need to be pulled by hand, but otherwise I really like the entire product line and am glad I bought them all.
Date published: 2019-09-05
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Standard Features

  • Common Features for Trimmers
    View the features common to many STIHL trimmers.

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For Your Safety


Product Instruction Manual (PDF)
Read what our customers say about STIHL Trimmers
How to Rewind the AutoCut® 2-2 Trimmer Head for the FSA 56 (Video)
Cutting Heads & Blades Selection Chart (PDF)
How to Replace the AutoCut® 2-2 Trimmer Head for the FSA 56 (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty
Contact Us 


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