FSA 56

FSA 56
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 184.
Rated 2 out of 5 by from Bad spool design The spools small line retaining clips continually break off when reloading the spool. Found out after buying this product that it is not meant to reload.This forces customers to have to buy preloaded spools. That canbe very expensive. For this reason or until they come up with a fix I would not feel I could recommend this trmmer. I would also remind folks that I own thousands of dollars of Stihl products and am happy with 99%of them
Date published: 2019-08-16
Rated 5 out of 5 by from Excellent Product It is light weight and adjustable for height. Love to use it.
Date published: 2019-08-13
Rated 2 out of 5 by from Battery The battery goes down quick. Start to get head way and it goes dead. My mower gets most of grass leaving just little around trees etc. Trimmer last about five to six trees fully charged
Date published: 2019-08-10
Rated 1 out of 5 by from Plastic gear head For the cost of this trimmer one would think the gear head would not melt within the first 15 minutes of use!
Date published: 2019-08-09
Rated 3 out of 5 by from Plastic gear in head There is an electric motor in the head. The gear that drives the head is made from plastic! Over one season you'll start to hear a grinding noise from the head, its the teeth wearing down and then eventually it wont work at all. Stihl, raise the price by $10 and put in a metal gear! If I wanted cheap, would have bought off brand. Expected higher quality from Stihl.
Date published: 2019-07-29
Rated 4 out of 5 by from This trimmer is quiet and handy Good trimmer the only complaint I have is it comes with the smallest available battery, there are a couple more battery options that have considerable more reserve and therefore longer life. The sales person said this trimmer would trim the length of a football field. Maybe if you walked very fast. I would be much happier if it had a bigger battery and if so would give it five stars.
Date published: 2019-07-29
Rated 1 out of 5 by from too much power I have had stihl products my whole life .I am 60 years old and wanted a lighter weed wacker have a 94r that is bullet proof and is like weedwacking with a chain saw.the 56a is a different breed if you ask me for stihl products.the whole gearbox other than one gear is metal.....do you know where im going with this .have had this product 2 months and is broke for the second time...the second one lasted half of a 1 amp battery life...15 minutes...I will say the warranty and the dealer where I bought it have been top shelf like the products im used to from stihl..would not buy one of these again..
Date published: 2019-07-28
Rated 3 out of 5 by from 1st battery powered tool Pros: lightweight, easy to use, no fuel mess/starting issues.Cons: bogs down in taller weeds, grass Can't wind spools, need to buy pre wound
Date published: 2019-07-28
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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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