Best Cordless Lawn Mower UK: 6 Models Compared

Best Cordless Lawn Mower UK: 6 Models Compared
Lisa Norberg
9 September, 2026

Best cordless lawn mower: six useful UK picks

The Ryobi RLM18X33B50C is a light cordless lawn mower for smaller UK gardens. Gardeners’ World rated it 4.8/5 and named it the best lightweight cordless mower under £300. It has a 33cm cutting width, weighs 8.5kg with its battery and includes a 5.0Ah battery.

No single cordless mower suits every lawn. The useful differences are cutting width, stated lawn area, tested runtime, grass-box size and whether the price covers a bare tool or a complete kit. The six models below cover compact gardens, medium lawns and larger areas.

Model Best for Key specification Price information
Ryobi RLM18X33B50C Lightweight small-garden mowing 33cm; 225m²; 8.5kg; 5.0Ah battery Related RLM18X33B kit: £219 at B&Q
Greenworks GDG24LM33 Small gardens on a budget 33cm; 280m²; 30-litre bag £117.99–£129.99
Stihl RMA 235 Cut quality 33cm; 300m²; 30-litre box £184 as a bare tool
Bosch ROTAK18V-34 Compact Bosch battery kit 34cm; 200m²; 35-litre box £260.99 including battery and charger
Greenworks MO48L422-01 Larger gardens 41cm; 40-litre box; around 40 minutes’ runtime £289.99 at B&Q; £289.95 at Tooled-Up
Bosch ROTAK18V2-43 Medium to larger lawns 43cm; two 18V batteries; 36V power £426.29 including two batteries and charger

Prices are retailer listings and can change. Check whether the exact listing is a kit or a bare tool, and note the stated battery and charger contents.

Best cordless lawn mower with battery and charger

The Bosch ROTAK18V-34 is the clearest complete kit for a compact lawn. Bosch supplies one 4.0Ah battery and a charger, and lists the 34cm mower at £260.99. It has five cutting-height settings from 25mm to 65mm and a recommended maximum lawn area of 200m².

The Ryobi RLM18X33B50C includes a 5.0Ah battery, but the confirmed listing describes the battery rather than a supplied charger. Gardeners’ World recorded just over 30 minutes of mowing from that battery. The related RLM18X33B kit with one 5.0Ah battery is listed at £219 by B&Q.

The Greenworks GDG24LM33 received 4.5/5 from Gardeners’ World and is listed at £117.99 from Amazon and £129.99 from Greenworks. It has a 33cm cutting width, a 30-litre grass bag and five cutting heights from 25mm to 70mm. Its battery ran for 46 minutes in testing, although the mower struggled with very long grass.

The Stihl RMA 235 is sold as a bare tool for £184 from Stihl UK. Gardeners’ World says that the recommended AK20 battery and charger bring the total to just under £360. It is therefore suited to an existing Stihl battery system as well as buyers prioritising its tested cut quality.

Best cordless lawn mower for a small garden UK

The Ryobi RLM18X33B50C combines a narrow 33cm deck with an 8.5kg weight and a stated capacity of 225m². That makes it practical around borders, trees and narrow passages. Its 35-litre grass box is larger than the Greenworks model’s 30-litre bag, while the tested runtime was just over 30 minutes from the supplied 5.0Ah battery.

The Greenworks GDG24LM33 is the lower-priced alternative. Its stated mowing area is 280m², and its 46-minute tested runtime is useful when the lawn is cut regularly. The test result about very long grass is important for lawns that are not mown frequently.

For a small lawn where a complete battery-and-charger package matters, the Bosch ROTAK18V-34 offers a documented kit with a 4.0Ah battery and charger. Its recommended maximum area is 200m², so it is a compact option rather than a large-lawn machine.

Best cordless lawn mower for a medium garden UK

The Greenworks MO48L422-01 has a 41cm cutting width, a 40-litre grass box and around 40 minutes of runtime in testing. Gardeners’ World lists it at £289.99 from B&Q and £289.95 from Tooled-Up. The wider deck covers more ground per pass than the 33cm and 34cm models.

The Bosch ROTAK18V2-43 uses two 18V batteries to provide 36V power and has a 43cm cutting width. Bosch lists the complete kit with two 4.0Ah batteries and a charger at £426.29. Its bare-tool price is £347.99. Bosch describes the mower as designed for medium to larger lawns.

For a smaller medium lawn, the Bosch ROTAK18V-34 remains easier to handle. Its 200m² recommendation places it below the larger Bosch and Greenworks models in intended lawn size, while its included charger makes the kit straightforward for a new buyer.

Best cordless lawn mower for a large garden UK

The Bosch ROTAK18V2-43 is the largest Bosch option in this comparison, with a 43cm deck and two-battery design. The wider cutting width reduces the number of passes needed compared with a 30–34cm mower, and the kit includes two 4.0Ah batteries and a charger.

The Greenworks MO48L422-01 is the lower-priced larger-garden alternative in the table. Its 40-litre box holds more clippings than the smaller 25- and 30-litre models, and its tested runtime was around 40 minutes. These specifications make it suitable for a larger lawn than the compact Greenworks, Ryobi, Stihl and Bosch 18V models.

How to choose a cordless lawn mower

Start with lawn size, then compare the kit contents, cutting width, terrain and storage requirements. Gardeners’ World also recommends considering obstacles, runtime and whether the mower collects or mulches clippings.

  1. Measure the lawn area. Compare it with a model’s stated capacity: 200m² for the Bosch ROTAK18V-34, 225m² for the Ryobi, 280m² for the Greenworks GDG24LM33 and 300m² for the Stihl RMA 235.
  2. Separate kits from bare tools. A bare tool is supplied without its battery and charger. The Bosch ROTAK18V-34 kit includes one 4.0Ah battery and charger; the Bosch ROTAK18V2-43 kit includes two 4.0Ah batteries and a charger; the Stihl RMA 235 price is for the mower alone.
  3. Choose the cutting width. Around 30–34cm suits smaller spaces and tight access. A 41–43cm deck covers more ground on medium and larger lawns.
  4. Match the mower to the grass. The Greenworks GDG24LM33 performed well in its category but struggled with very long grass in testing. Regular mowing is more suitable for compact models.
  5. Consider the battery platform. A shared battery system can be useful if you also use compatible cordless garden tools.

Frequently asked questions

What is the best cordless lawn mower to buy?

For a small garden, the Ryobi RLM18X33B50C combines a 4.8/5 Gardeners’ World rating, an 8.5kg weight, a 33cm cutting width and a supplied 5.0Ah battery. The Greenworks GDG24LM33 is the lower-priced alternative, with a 4.5/5 rating and prices from £117.99.

What is the best battery lawn mower for a small garden?

The Ryobi RLM18X33B50C is a compact choice with a 225m² stated capacity, a 35-litre grass box and just over 30 minutes of tested mowing time from its 5.0Ah battery. The Bosch ROTAK18V-34 is the option with a confirmed battery-and-charger kit.

What is the best battery-powered lawn mower for a large lawn?

The Bosch ROTAK18V2-43 is designed for medium to larger lawns and has a 43cm cutting width. Its kit costs £426.29 and includes two 4.0Ah batteries and a charger. The Greenworks MO48L422-01 provides a lower listed price, a 41cm deck, a 40-litre box and around 40 minutes of tested runtime.

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