The best cordless lawn mowers for large gardens, compared.
Top pick: LawnMaster CLMF4841E-1-01 Best value: Einhell GE-CM 43 Li M – Lowest captured price at about £239.94, widest cut, and 4.1 from 6,758 reviews. The 600 m² line is the listing's claim. Updated 22 October 2026.
A cordless lawn mower for large gardens is a battery rotary you buy in the United Kingdom when you want to leave a cable, and often petrol, behind on a lawn from 400 square metres. No British Standard defines large. A retail size band puts 400–550 m² with a 37–46 cm cut in the medium-to-large range, and points lawns over 550 m² toward petrol and a wider deck. You recognise a suitable machine by the lawn you measured, the cutting width, the stated area, the amp-hours in the box, the bag, and whether a rear roller is printed. The charger should be a BS 1363 plug for 230 V. Listed weight is what you push. If the bullets do not say the wheels are driven, it is a push rotary. A stated area is the maker's claim, not a cut in long or wet grass. Width, packs and a roller are in the [buying guide](/hub/lawn-and-garden-equipment/cordless-lawn-mower-for-large-gardens/sub/cordless-lawn-mower-for-large-gardens-buying-guide).
A cordless lawn mower for large gardens is a battery rotary you buy in the United Kingdom when you want to leave a cable, and often petrol, behind on a lawn from 400 square metres. No British Standard defines large.
18 products checked · 56 hrs invested · +21,400 readers
Swipe for more
1-2 of 5
Personal buying guide
Question 1 of 2
What do you need in the box?
The LawnMaster CLMF4841E-1-01 is the same 41 cm roller story with two batteries and a dual charger, captured at £313.33, which is more than the four-pack listing. Across 62 amazon.co.uk reviews the line is 4.8, the highest stars in this set on a much smaller base than 277. Reviewers praise the roller and say two batteries were enough for a moderate-to-large lawn. One finished about 125 m² with charge left, which is not evidence for a large garden, and another, on a garden described as about 1,000 m², got about two-thirds done before charging. The listing does not state the amp-hours of the included packs, only that every MX 24 V 4.0 Ah battery fits the range. A review says it is not self-powered. A belt failed and spare parts and support were criticised, and the grass bin can clog. The listed weight is 13.5 kg, lighter on the page than the four-pack.
Pros
Cons
Best for: You want this roller deck, you already own extra MX 24 V packs, and you prefer the lighter listed weight.
Less suitable: You are buying the only batteries you will own for a large lawn, or you need driven wheels.
Specifications
Common questions
How is this different from the four-battery LawnMaster?
This model is CLMF4841E-1-01, titled with two batteries and a dual charger, at £313.33 on this capture. CLMF4841E-01 states four 4.0 Ah packs and was captured at £299.00.
Does the listing state the amp-hours of the included packs?
The compatibility bullet says every MX 24 V 4.0 Ah battery fits the range. It does not state the included packs' amp-hours as a box-content line.
Does it stripe, and is it self-propelled?
The highlight states a rear roller, six cutting heights, an edge comb, and large lawns. Height cells are 22–72 mm. Self-propelled drive is not stated. A UK review says it is not self-powered.
This Greenworks 48 V mower is a 35 cm brushless model at £259.99 with two 24 V 4.0 Ah packs and a twin charger, titled for large lawns up to 400 m² on a single charge. That deck is the narrowest in the set, so the area claim means more passes than the 41 cm and 43 cm rows. Across 19 amazon.co.uk ratings the line is 4.5, which is too small a base to treat as a stable picture. The comments that are there say it cuts, including overgrown grass in one short review, and that it feels light and quiet at a listed 16.5 kg. The fullest review says the batteries do not last unless you already own more Greenworks packs. One delivery arrived without the manual, batteries, charger, or grass box, which is a fulfilment complaint on that order rather than a design line. Side discharge is stated, with mulch and a 40 litre bag, and the battery-life cell says 40 minutes, while the minimum height cell says 30 cm against a 30–80 mm bullet.
Pros
Cons
Best for: You already own Greenworks 24 V 4.0 Ah packs and the lawn is nearer 400 m², with room for the extra passes a 35 cm deck needs.
Less suitable: You want a 41 cm or wider deck, a large review sample, or compatibility with Greenworks 40 V packs.
Specifications
Common questions
How wide is this Greenworks mower?
35 cm. The title says large lawns up to 400 m². The 41 cm Greenworks in this set is a different listing, with 2.0 Ah packs.
What is in the box?
The title says two 4.0 Ah batteries and a twin charger. The bullets say brushless, a 40 litre bag, and mulch, side discharge, or collection. The battery-life cell says 40 minutes.
How many UK ratings does the listing show?
4.5 out of 5 from 19 ratings. That is a much smaller base than the other mowers kept in this category.
The Greenworks G40LM41K2X is a 41 cm mower at £269.16 with two 40 V 2.0 Ah packs, one charger and a 50 litre bag, titled for lawns up to 500 m². The same bullet calls the lawn medium-sized and says each battery cuts 250 m². Across 1,182 amazon.co.uk reviews the line is 4.4. Reviewers find it easier than a corded or petrol mower and like the height lever, and one says the two batteries will just do about 500 m² if the grass is not left long. The recurring complaint is that the 2.0 Ah packs run out, with reviewers saying a 4.0 Ah pack should have been supplied. Thick grass needs a higher setting and two passes, and one small tough lawn had to be raised before the motor kept cutting. Mulch needed a second pass in an 18-month review. The height cells conflict with the 25–80 mm bullet, and the listed weight is 20.8 kg, the heaviest row here, with drive not stated.
Pros
Cons
Best for: You already mow often enough that the grass stays short, and you own or will add larger Greenworks 40 V packs.
Less suitable: You are facing long grass with only the two 2.0 Ah packs in the box.
Specifications
Common questions
How large a lawn does the listing claim?
The title and the first bullet say up to 500 m², and that each 2.0 Ah battery cuts 250 m². The same bullet also says medium-sized.
Which batteries are in the box?
Two 40 V 2.0 Ah batteries and one charger. Brushless is not stated. The bag is 50 litres, with mulch or collect.
What cutting height should you trust?
The bullet says 25–80 mm in five positions on one lever. The attribute cells say a maximum of 70 mm and a minimum of 25 cm, which do not match that bullet.
The LawnMaster CLMF4841E-01 cuts at 41 cm and, on this capture, comes with four MX 24 V 4.0 Ah packs and a dual charger at £299.00, so one pair can charge while the other pair is in the mower. Across 277 amazon.co.uk reviews the line is 4.4, and people who want stripes mention the rear roller and edge combs on a large lawn. One reviewer mowed a large lawn and a medium lawn on a single charge, which is one garden, not a square-metre figure the listing never prints. The grass box is called flimsy, with supports that do not stay in place. A review that otherwise likes the four batteries says there is no power-drive mode, and the bullets never state self-propelled wheels. You are pushing the listed 18.9 kg yourself. A handle thread broke after about two years in one account, and another mower stopped after the Amazon return window.
Pros
Cons
Best for: You mow a large, regularly cut lawn, want a roller and a spare pair of 4.0 Ah packs, and can push about 19 kg.
Less suitable: You need driven wheels, the lowest price in this set, or a printed square-metre rating.
Specifications
Common questions
Does this listing include batteries?
Yes. The bullet says four MX 24 V 4.0 Ah batteries and one dual charger, so two packs can charge while the other two are in the mower.
Does it have a rear roller and a grass bag?
Yes. The bullets and the highlight state an integrated rear roller, edge combs, a mulch plug, and a 42 litre Redi-bag.
Is it self-propelled?
The bullets do not say the wheels are driven. The operation-mode cell says Automatic. UK reviews describe it as a push mower with no power drive.
The Einhell GE-CM 43 Li M is a 43 cm brushless rotary at £239.94 with two 4.0 Ah Power X-Change packs, two fast chargers, a mulching wedge and a bag of up to 63 litres. The listing recommends lawns up to 600 m² and prints a 60-minute battery-life cell, which is the maker's claim rather than a timed result from this comparison. Across 6,758 amazon.co.uk reviews the line is 4.1, the largest sample here and the lowest average. Reviewers who left petrol often call it quieter and lighter at a listed 16 kg, and they like the cut when the grass is not left long. The grass box is called flimsy or awkward to assemble, and the handle clamps are described as fussy to close. More than one review says the charger is a two-pin plug rather than a UK three-pin plug, and the specification table does not describe the plug. One buyer expected self-propelled drive and says it is not.
Pros
Cons
Best for: You want the widest deck and the lowest price in this set, and you will check the charger is a BS 1363 plug before you rely on it.
Less suitable: You want a rear roller, four packs in the box, or a listing that states driven wheels.
Specifications
Common questions
What width and lawn size does the listing state?
The title states 43 cm. The bullet recommends it for lawns up to 600 m². Height cells are 25–75 mm in six positions, and the bag is up to 63 litres.
What batteries and chargers are in the box?
Two 4.0 Ah batteries and two fast chargers. The listing says the motor is brushless and that a mulching wedge is included. The mower is described as 36 V Power X-Change.
Does the listing say the charger has a UK plug?
The specification table does not describe the plug. More than one UK review says the charger has two pins rather than a UK three-pin plug.
Five amazon.co.uk listings were scored on 22 October 2026. The score starts from the amazon.co.uk star rating times 20, so a five-star line is 100 before any later change. Kit, review count and recurring UK review problems then add or subtract points. Those point changes are not criterion weights. This file does not publish a separate percentage split, so the star baseline is left at 100 and the point changes are not rescaled into weights. Products Compared did not mow a lawn with these machines. A seller area, minute or warranty line stays a seller claim. Star ratings are not a safety mark.
Amazon.co.uk star rating
100%The score starts from the amazon.co.uk star rating multiplied by 20. A five-star line is 100 before later point changes. Review count, the kit in the box and recurring UK review problems then move that figure. Those moves are point adjustments, not separate percentage weights, and they are not rescaled.
Judge a cordless lawn mower for a large garden on the lawn you measured, then on width, the amp-hours in the box, the bag, a roller if you want stripes, and whether the listing actually says the wheels are driven. A stated square-metre line is the maker's sentence. None of the five bullets kept here states self-propelled drive. The charger should be a BS 1363 plug on 230 V, and the listed weight is what you push.
A cordless lawn mower for a large UK garden is a battery rotary meant to replace a cable, and often petrol, from roughly 400 m² upward. No British Standard defines large. B&Q puts 400–550 m² with a 37–46 cm cut in the medium-to-large band and still lists lawns over 550 m² with petrol and a deck over 46 cm. Measure the lawn before you read a title. A 43 cm deck needs fewer passes than a 35 cm deck. A 35 cm mower titled for 400 m² is a narrow deck for that claim.
Up to 600 m², up to 500 m² and up to 400 m² are listing sentences. Which? runtime figures are from other models. Long or wet grass is not that claim.
None of these five bullets states that the wheels are driven. An operation-mode cell that says automatic is not drive. You still push the listed weight.
Reviewers say those packs run out, and they wanted a 4.0 Ah pack in the box. A two-pin charger on a UK listing is a separate reason to stop and check the plug.
Measure the lawn before you compare titles. A 43 cm deck needs fewer passes than a 35 cm deck. B&Q's medium-to-large band is 400–550 m² with a 37–46 cm cut. Lawns over 550 m² are still listed with petrol and a deck over 46 cm, and about 1,000 m² is where that table points at a ride-on. A 35 cm mower titled for 400 m² is a narrow deck for that claim. Stated area is a claim: up to 600 m², up to 500 m² with a medium-sized line in the same bullet, or up to 400 m².
Read the amp-hours in the carton, not only a voltage printed as 48 V. On these listings that figure means two lower-voltage packs used together. Four stated 4.0 Ah packs let one pair charge while you mow. Two 2.0 Ah packs are the ones reviewers say run out against a 500 m² claim. If the listing does not print the included amp-hours, a compatibility line is not the same as those packs being in the box. Greenworks 40 V, Greenworks 24 V, Einhell Power X-Change and LawnMaster MX packs do not cross.
Three typical situations, each with a recommendation from this comparison.
You mow a large, regularly cut lawn, you want a roller, and you can push about 19 kg. The LawnMaster CLMF4841E-01 states four 4.0 Ah packs and a rear roller, so one pair can charge while the other pair is in the mower. The listing does not print a square-metre figure, and it does not state driven wheels.
You want the widest deck and the lowest captured price in this set, and you will check the charger is a BS 1363 plug before you rely on it. The Einhell GE-CM 43 Li M is 43 cm, with two 4.0 Ah packs. The 600 m² line is the listing's claim. UK reviews mention a two-pin charger.
You want the same roller deck, you already own extra MX 24 V packs, and you prefer the lighter listed weight. The LawnMaster CLMF4841E-1-01 states two batteries and a dual charger. It does not print the amp-hours of the included packs, and it costs more on this capture than the four-pack listing.
The top pick is the LawnMaster CLMF4841E-01, score 94, with four stated 4.0 Ah packs, a rear roller, 4.4 from 277 amazon.co.uk reviews, and a captured price of about £299.00. The best value is the Einhell GE-CM 43 Li M, score 83, the lowest captured price at about £239.94, with the widest cut and 4.1 from 6,758 reviews. That badge is the price and the sample, not a claim it will mow 600 m² in long grass. Neither badge means the best cordless mower in the UK. Driven mowers advertised elsewhere are outside this shortlist. The score starts from the star line times 20, then moves by kit and review points. This was not a lab mow.
Einhell GE-CM 43 Li M
Lowest captured price at about £239.94, widest cut, and 4.1 from 6,758 reviews. The 600 m² line is the listing's claim.
Editorial
Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
Guides on what to look for, how to use a product, and common mistakes.
Size bands are the B&Q lawnmower buying guide. Runtime spread is Which? on other cordless mowers. Noise limits are SI 2001/1701 Schedule 3. Supply duties are the Supply of Machinery (Safety) Regulations 2008. Neighbour noise is the GOV.UK nuisance guide. Mowing and battery storage follow the RHS. Lithium-ion disposal follows the NFCC. Prices, stars and kit lines are the amazon.co.uk listings captured on 22 October 2026. They are not a lab test.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Scores read the amazon.co.uk listings captured on 22 October 2026. They are not a lab test, and they are not a promise of the cheapest price.
