STIHL FSA 400 cordless brushcutter, without battery and charger

If you maintain rough grass, brush or young woodland and need low noise with high pace, the STIHL FSA 400 helps you clear fast without fuel, fumes or cables. Its powerful EC motor and large 520 mm cutting circle keep progress steady, while the bike handle and anti‑vibration system make long shifts easier on the body.

Built for daily professional use, the FSA 400 combines rugged construction with smart energy use. Three-step speed control lets you match power to the task to save battery life, and IPX4 certification means you can keep working in wet conditions.

Where it excels

• Cutting high grass and tough weeds along roadsides and embankments
• Clearing brush and wild growth in parks and estates
• Tidying rough ground around farms and stables
• Pruning small trees in young stand maintenance

Why pros pick it

• Wide 520 mm cut for rapid area coverage
• Ergonomic bike handle for smooth sweeping strokes
• Low vibration for less fatigue over long jobs
• AP System readiness with constant power output

In daily use

The bike handle adjusts tool-free for a natural mowing motion. Balance is solid thanks to a robust protective shaft and steel drive shaft, and the anti‑vibration system keeps the machine settled in your hands. A metal-mesh air filter maintains optimal cooling and is easy to clean. The 10-point hanging rail makes storage simple, and it’s ready for STIHL Smart Connector 2 A for fleet tracking.

Power and runtime at a glance

• Nominal voltage: 36 V (max. 40 V)
• Power: 2.0 kW (2.60 kW electrical input)
• Cutting circle: 520 mm
• Standard cutting gear: AutoCut 46-2 / Tri-blade 300-3
• Recommended battery: AP 500 S
• AP 300 S runtime (line): 12–20 min
• AP 300 S runtime (plastic blades): 16–29 min
• AP 300 S runtime (metal tool): 20–40 min
• AP 500 S runtime (line): 15–25 min
• AP 500 S runtime (plastic blades): 20–40 min
• AP 500 S runtime (metal tool): 25–50 min
• Sound pressure/power: 83 / 96 dB(A)
• Vibration left/right: 2.4 / 1.6–1.8 m/s²
• Tool length (without cutting tool): 179 cm
• Protection rating: IPX4 (splash water)

Advice from gardenmachineshop.com

Use the three-step speed control: drop to a lower setting for lighter grass to extend runtime, and only step up when you hit dense growth.

Returns: as a consumer you can withdraw from your purchase within 14 days of receiving it, without giving a reason – this also applies to parts we order in specially for you. See our Refund & return policy for how to return an item and who pays the return shipping.