The Bosch UniversalRotak 2x18V-37-550 Solo cordless lawn mower is designed to mow lawns up to 550 m² without a power cable. It operates with two 18-volt batteries, which together provide 36 V power; the Solo version is supplied without batteries and charger.

Key product features

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The 37 cm cutting width determines how much lawn the mower covers in one pass. It is suitable for managing medium-sized lawns, with the actual mowing time also depending on the shape and variety of the lawn. The stated area of up to 550 m² thus illustrates the intended scope of use.

The grass clippings are collected in a 40-litre grass catcher box, which needs to be emptied periodically during mowing. The brushless motor has no carbon brushes that wear out during normal operation, and the power supply with two 18V batteries allows the mower to operate without a cord.

It is important to know

When choosing, the most important factors are the readiness of the battery system and the mowing method, not just the stated lawn size. Before buying, check whether you already have compatible batteries and whether you are comfortable with emptying the grass collector more often.

• Since the battery and charger are not included, consider purchasing them if you don't already have the appropriate batteries.
• The cutting width is a compromise for general use: for a larger open area, it can mean more passes than a wider model, but for very narrow spaces, the cutting width alone does not tell you how much space the entire mower needs.
• A 40-liter catcher box may be less practical if you mow a larger area and want to interrupt work as little as possible to empty it.

Source of editorial recommendations: general verifiable guidelines for product selection.

In practice

🌱 Regular mowing of a medium-sized lawn

🟡 Suitable with restrictions - the cutting width and the stated area of up to 550 m² are suitable for such use, but the actual readiness for work also depends on whether you have the appropriate batteries.

🧺 Mowing with grass collection and fewer interruptions

🟡 Suitable with limitations – the catcher box allows collection, but its capacity can be limiting if you want to cut as little as possible on a larger area.

Answers to frequently asked questions

Is this model suitable for a lawn larger than 550 m²?

The stated mowing area is up to 550 m², so the data does not confirm suitability for larger lawns. For larger areas, also consider the battery configuration and mowing method.

Is the cutting width sufficient for very narrow passages?

The cutting width is 37 cm, but this does not indicate the overall width of the mower. If you have very narrow passages, check the external dimensions of the model before purchasing.

Description updated: November 2026

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