Woman using STIHL FSA 45 to trim along the side of a stone wall

Close up of STIHL FSA 45 being used along a sidewalk

Full view of STIHL FSA 45 leaned up against a stone wall

Man trimming along fence with STIHL FSA 45

Studio shot of STIHL FSA 45 on front stoop

How to Assemble: FSA 45 | STIHL Tutorial

FSA 45

Name: FSA 45
Brand: STIHL
SKU: fsa45
Rating: 4.0684 (687 reviews)

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This lightweight, adjustable trimmer is ideal for trimming and edging small residential yards.

Features

Integrated Battery
Battery Indicator Lights
Activation Key
Loop Handle

Part of the AI Series, the FSA 45 delivers STIHL quality at a value price. It features an adjustable shaft length to fit different heights and enhance comfort. With its adjustable trimmer head, this tool can adapt to various trimming tasks. It 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. Plus, you can trim the length of three football fields when its integrated battery is fully charged—that’s up to 1,080 feet. This STIHL AI Series trimmer is also just 5.1 lbs. (including battery) for easy portability and maneuverability. This trimmer is a great choice for occasional use on small properties.

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. Comes with integrated battery and charger.

Cutting Heads & Blades Selection Chart (PDF)

Features
- Integrated Battery -
  This product includes a built-in battery and corresponding charger. The integrated battery is charged via an external charging cable.
- Battery Indicator Lights -
  This product is equipped with built-in indicator lights, showing the battery status and remaining level of charge.
- 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.
- Loop Handle -
  A thumb screw allows the ergonomic loop handle to be easily adjusted to desired position without tools.
- Rubberized Soft-Touch Handle -
  Soft rubber texture is both easy to grip and makes the product comfortable to hold for extended periods.
- Compact, Ergonomic Design -
  The compact, ergonomic design provides more comfortable use.
- Hanging Loop -
  Hang your product securely on a wall to save space using the loop in the handle housing.
- Lightweight Portability -
  This product is lightweight for easy portability, great maneuverability, and extended use.

Specifications

Questions And Answers

Reviews

Warnings And Safety
Product Instruction Manual (PDF)
How to Wind a STIHL Trimmer Head - Video
How to Assemble FSA 45- Video
Cutting Heads & Blades Selection Chart (PDF)
Product Safety Manual (PDF)
View Our Usage Chart
STIHL Limited Warranty
Contact Us

Note: STIHL engine products with the Caring for Nature logo are cleaner than EPA Standards for exhaust emissions.
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.
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.

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POWER SOURCE	Battery
WEIGHT	5.1 lbs.
BATTERY SYSTEM	AI Line
RUN TIME (w/ Integrated Battery) UP TO	12 min.
VOLTAGE	10.8 volt
CUTTING WIDTH	9 in.