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FSA 86 R: Powerful and Precise Mowing

With the STIHL FSA 86 R battery grass trimmer, you can trim lawn edges along paths and obstacles cleanly and efficiently. Small lawns can also be mown by hobby gardeners, small businesses and caretakers thanks to the powerful EC engine with a constant working performance. In addition, the particularly low-noise operation of the grass trimmer makes it possible to work without ear protection in noise-sensitive environments. Thanks to the battery technology, the start-up sequence is particularly easy and effortless, and the FSA 86 R can be used immediately at the push of a button.

The batteries from the STIHL AP System are protected in the engine casing on the handle, so that the low weight and balanced battery centre of gravity in the shaft axis ensure effortless use of the grass trimmer, especially during long periods of use. The ergonomic loop handle with soft surface and the infinitely variable speed control of the STIHL FSA 86 R battery grass trimmer also offer a high level of working comfort.

The grass trimmer is compatible with three different cutting tools, that you can replace without the need for tools. You can refill the standard integrated two-line mowing head STIHL AutoCut C 6‑2 with a cutting circle diameter of 350 mm by hand. Simply insert the mowing line into the housing from the outside. Depending on your requirements, you can also use the STIHL PolyCut 6-2 mowing head with plastic blades or the STIHL DuroCut 5-2 mowing head with threaded pieces with the FSA 86 R battery grass trimmer. Our guide section shows you how to change the cutting tool on a grass trimmer. The spacer bracket on the FSA 86 R prevents damage to plants, objects and the power tool itself when working with the various mowing heads.

All battery power tools within the STIHL AP System have been designed for professional users and daily work, even in adverse weather conditions. For this reason, they are certified as splashproof. The effectiveness of this is also verified through demanding internal tests. The splashwater test is aligned with the IPX4 standard, among others.


The pictures shown are sample photos. The actual appearance of the equipment features and their specific attachment to the product may differ from the pictorial representations, but will have the same functionality.

Soft grip

Technical details

Rated voltage36 V
Weight3.2 kg 1)
Sound pressure level77 dB(A) 2)
Sound power level91 dB(A) 2)
Vibration level, left3.7 m/s² 3)

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