An affordable string trimmer including a built-in battery and adjustable shaft length.
Note: Product availability may vary by location.
Part of the AI Series, the FSA 45 delivers STIHL quality at a value price. It features an adjustable shaft length to fit different user 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.
View Our Usage Chart
|FSA 45 Specifications - Occasional Use|
|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.|
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.
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.
Adjustable front handle
The front handle is easily adjustable (360-degree rotation) for comfort.
A thumb screw allows the ergonomic loop handle to be easily adjusted to the desired position without tools.
You Will Also Need
Use this trimmer line when working in properties with noise restrictions. The trimmer line incorporates spiral grooves to greatly reduce wind noise and is primarily used with electric and battery operated line trimmers.
Available in a variety of sizes and configurations. See Dealer for details.
For Your Safety
For landscapers who work extensively with their hands, the Landscaper Series™ Gloves from STIHL are made from strong-yet-supple deerhide leather. They provide fantastic wear properties and an excellent sense of touch and feel. The naturally soft leather provides all-day working comfort.
Materials: Deerhide leather
Available sizes: S, M, L, XL
A combination of safety and style, Camo Glasses from STIHL provide 99% UV protection in a sleek, camo-pattern frame. The single lens, wrap-around design offers great protection and an overall modern look. The lenses are made from an optical-grade polycarbonate. Soft rubber temple tips and nosepiece are designed to help maintain fit while reducing slippage.
Meets ANSI Z87+ standard
Available lens colors: Bronze, Smoke, Yellow
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.
Read what our customers say about STIHL Trimmers
How to Wind a STIHL Trimmer Head - Video
Cutting Heads & Blades Selection Chart (PDF)
Download Instructions on How to Rewind Your Trimmer Head (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty