The best cordless mulching lawn mowers, compared.
Top pick: Swift EB122C 22 cm Best value: Einhell GE-CM 18/33 Li kit – 4.3 from 7,288 reviews at about £149.95 with a battery and charger included. The bag and area lines on that listing conflict. Updated 22 October 2026.
A cordless mulching lawn mower is a battery rotary that chops clippings and returns them to the turf. You buy one in the UK when you want those clippings on the lawn without a mains lead, and a box for grass that is too long or too wet to mulch. A suitable machine names a mulch plug or a mulching blade. A bag alone is not a mulch path. Match the width to the plot. A narrow deck suits a courtyard or a patch you carry. A wider deck suits a larger walk-behind lawn. Read the cutting height in millimetres. Treat a square-metre line as the seller's claim. The carton should include a battery and a charger you can replace in the same family. Packs from different ranges are not interchangeable. If the title does not say self-propelled, it is a push machine. Remove the battery before you fit a plug or clear the deck. In a drought, raise the cut, and do not take more than a third of the leaf. See the [how to mulch guide](/hub/lawn-and-garden-equipment/cordless-mulching-lawn-mower/sub/cordless-mulching-lawn-mower-how-to-mulch).
A cordless mulching lawn mower is a battery rotary that chops clippings and returns them to the turf.
38 products checked · 64 hrs invested · +18,600 readers
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Personal buying guide
Question 1 of 2
What are you cutting?
The Swift EB122C is a 22 cm brushless mower at £134.99 with a 40 V 2.0 Ah pack and a fast charger, stated for lawns up to 50 m² and about 35 minutes. It scores 4.5 from 330 reviews. Older buyers, including reviewers in their 70s and 80s, single out the 5.2 kg weight, and several say it mulches a side lawn or a caravan patch. The listing states a super-mulch blade and vertical storage, and a grass bag is not named. The 2.0 Ah pack is the repeating complaint, a larger pack is described as expensive, and one owner’s control trigger stopped after 13 months. Height text disagrees: the cell says three heights at 30–50 mm, while a highlight says five, and the narrow deck means many passes.
Pros
Cons
Best for: You will carry a narrow mulcher for a courtyard, side lawn or caravan patch around the stated 50 m², and you do not need a box.
Less suitable: You need to collect clippings, or the lawn is wide enough that a 22 cm deck would take too many passes.
Specifications
Common questions
What size of lawn is this Swift for?
The listing says up to 50 m² and up to 35 minutes from the 2.0 Ah pack, with a 22 cm cut.
Does it collect clippings?
The bullets describe a mulching blade that leaves chopped grass on the lawn. A grass bag is not stated.
How many height settings are listed?
The specification cell says 3 heights from 30 mm to 50 mm. The highlight says 5 heights.
The Worx WG737E cuts 37 cm and is listed at £229.00 with two 20 V 4.0 Ah PowerShare packs, a charger, a mulch plug and a grass bag. Across 207 amazon.co.uk reviews it sits at 4.5. Buyers who replaced a petrol mower often call it lighter, and several say the two packs finish a lawn with charge still left. The plug returns clippings instead of filling the bag, which is the job this comparison is built around. One reviewer still calls the 4.0 Ah packs small on a large lawn, and another reports mixed results after a year as a petrol replacement. The first charge of both batteries takes a while. It is our top pick when you want a stated mulch plug and a bag in one kit, though the listing’s 550 m² line is a seller claim.
Pros
Cons
Best for: You want to mulch most weeks and bag the first cut on a medium lawn, on the Worx 20 V PowerShare system.
Less suitable: You need a driven mower, or your lawn is already large enough that a 4.0 Ah pack feels limiting.
Specifications
Common questions
Does the WG737E include batteries and a mulch plug?
Yes. The listing includes two 20 V 4.0 Ah PowerShare packs, a charger, and a switch between the mulch plug and the grass bag.
What lawn size does the listing state?
The bullets say the two 4.0 Ah packs cover gardens up to 550 m². That is the seller figure, not a measured result from these reviews.
Is it self-propelled?
The listing does not say it is self-propelled. The operation-mode cell says Automatic, which is not a drive claim.
The Bosch Rotak 18V-32 kit is £181.00 with a 32 cm deck, a 35 litre fabric bag, a mulch plug, one 18 V 4.0 Ah battery and an AL 18V-44 charger. The star line is 4.5 from 54 reviews, the same stars as the Worx kit on a much smaller sample. Reviewers call it light to push, and one reports about an hour on the battery plus stripes on a caravan lawn. Another covers about 60 m² in 20–25 minutes and wants a second pack. The battery is hard to remove, including for a reviewer with arthritis, and longer grass is a struggle for at least one buyer. POWER FOR ALL is stated, so the pack is meant for other tools on that 18 V platform. It suits a small to medium lawn when one 4.0 Ah pack is enough.
Pros
Cons
Best for: You have a small to medium lawn, you want a named plug and a bag, and one 4.0 Ah POWER FOR ALL pack is enough.
Less suitable: You want a second battery in the box, or you need to clear a lawn that has already got away.
Specifications
Common questions
Does the Rotak 18V-32 kit include a battery?
Yes. The title and the included line list an 18 V 4.0 Ah battery and an AL 18V-44 charger, plus the mulch plug.
What cutting width and bag size does the listing state?
32 cm, a height of 25–65 mm, and a 35 litre fabric grass bag.
Is the mower self-propelled?
The listing does not say it is self-propelled. One reviewer with arthritis found the battery hard to remove.
The Greenworks G40LM41 is the widest deck in this set at 41 cm and £269.16, with a 50 litre bag, a stated mulch plug, two 40 V 2 Ah packs and a charger. The listing says each pack cuts 250 m² and the pair covers up to 500 m². It is 4.4 from 1,182 reviews and weighs 20.8 kg. Buyers like the bag, the plug, and charging one pack while they mow with the other, and some report that long or slightly wet grass still cuts. One reviewer gets about 20 minutes from a 2 Ah pack, and after 18 months the mulch is described as weak enough to need a second pass. Both packs failed for one owner who also found mulching underpowered. The height bullet says 25–80 mm while a cell prints a minimum of 25 centimetres, and brushless is not stated.
Pros
Cons
Best for: You want the widest mulch-and-bag deck in this set and you can lift 20.8 kg, with 500 m² kept as a listing claim.
Less suitable: You need to carry the mower up steps, or you expected more than 2 Ah from each included pack.
Specifications
Common questions
How wide is the G40LM41 and what bag does it have?
The title states 41 cm and a 50 litre bag, with mulch or collect.
What runtime does the listing claim?
Each 2 Ah battery is said to cut 250 m², and the pair up to 500 m². Reviews often describe the 2 Ah packs as the limit.
Is the height range consistent?
The bullet says 25 mm to 80 mm. One cell prints a minimum of 25 centimetres.
The Einhell GE-CM 18/33 Li is a 33 cm brushless 18 V kit at £149.95, with a 4.0 Ah Power X-Change pack and a fast charger. It carries 4.3 from 7,288 amazon.co.uk reviews, the largest sample in this set. Reviewers on small, irregular lawns call it easier than a corded or petrol mower, and several say one 4.0 Ah charge covers a typical front, side and back. The bullet calls side discharge the mulching function and says there is no collection bag, while a highlight mentions a 30 litre box and up to 20 m² against a 200 m² bullet. Those two area figures cannot both be the specification. One unit bought in May 2026 stopped working and was refunded. It is the best value full kit on price and review volume if you accept a side-discharge claim rather than a named rear plug.
Pros
Cons
Best for: You want a cheap 33 cm kit with the battery included and you will check the live page for the bag before you rely on it.
Less suitable: You need a named rear mulch plug, or you want one settled lawn-area figure.
Specifications
Common questions
Does this Einhell include a battery?
Yes. The included line lists a 4.0 Ah Power X-Change battery and a fast charger.
Does it collect grass or only discharge it?
The bullet says there is no collection bag and that cut grass leaves by side discharge. The highlight mentions a 30 L grass box. Both lines are on the same listing.
What area is it for?
The bullet says lawns up to 200 m². The highlight says up to 20 m². Use the conflict as a reason to read the current amazon.co.uk page before you buy.
The Ryobi OLM1833B is a 33 cm body at £160.20 with a mulching plug and a 35 litre collector, and the title excludes the battery and the charger. It is 4.3 from 2,487 reviews. The listing’s “up to 250 m²” line is for an 18 V ONE+ 5.0 Ah pack you supply, not a pack inside this price. Reviewers like the light deck between beds and the shared battery with a strimmer or blower. It stalls on wet or damp grass, and the first cut of longer grass needs a higher setting and a second pass. One long-term user calls 2.0 Ah packs a waste of time on this mower. The plug can arrive already fitted, so the box stays empty until you take it out, and the weight cells print 7.7 kg without a battery and 10.3 kg as the item weight.
Pros
Cons
Best for: You already own an 18 V ONE+ pack, preferably 5.0 Ah, and you want a 33 cm mulch-and-bag body.
Less suitable: You are starting from no Ryobi batteries, or you need to mulch wet or overgrown grass in one pass.
Specifications
Common questions
Does this Ryobi include a battery?
No. The title says battery and charger excluded. The 250 m² figure is for an 18 V ONE+ 5.0 Ah pack you already own or buy separately.
Can it mulch?
Yes. The bullets include a mulching plug. Reviewers say it can arrive fitted, so the mower will not collect until you remove it.
How heavy is it?
The bullets say 7.7 kg without a battery. The item-weight cell says 10.3 kg.
The Greenworks G40LM35 is £249.99 for a 35 cm 2-in-1 with a mulch plug, a 40 litre bag, two 40 V 2 Ah packs and a charger, stated for lawns up to 400 m². It is 4.2 from 3,009 reviews. One buyer says the mulch leaves little visible residue, and another covered a large garden twice by swapping the packs, while the handle folds and the blade stops when the lever is released after a short spin-up. The 2 Ah packs are the repeating limit: one long-term user needs both for a modest front and back. Assembly instructions are weaker than the box art for at least one reviewer, and the height cells both print 8 cm, which conflicts with the 25–70 mm bullet. One reviewer reports the batteries caught fire in a kitchen after charging, which is one account rather than a failure rate. The listing weight is 15 kg.
Pros
Cons
Best for: You already use Greenworks 40 V tools and you will bag as often as you mulch, treating 400 m² as a claim.
Less suitable: You need more than 2 Ah per pack, or you want one settled cutting-height figure.
Specifications
Common questions
Does the G40LM35 mulch and collect?
Yes. The bullets say five heights and 2-in-1 mulching or collection in a 40 litre bag.
What batteries are in the box?
Two 40 V 2 Ah batteries and one charger. The listing area is up to 400 m².
Do the height figures agree?
The bullet says 25 mm to 70 mm. The cells print 8 cm for both minimum and maximum.
The Yard Force LM G32 is a 32 cm 40 V kit at £159.99 with a 2.5 Ah pack, a quick charger, a 30 litre bag and a stated rear roller. It is 4.1 from 1,707 reviews, and the listing does not name a mulch plug. Reviewers on small front lawns call it light and practical at 11.3 kg, and one charge is often enough once the grass is short. The body is almost all plastic and too light for some people while cutting. One household burnt out the motor on a first unit, and another could not seat the battery again after charging. Handle height suits a shorter user; a reviewer at 5 ft 3 in would not recommend it if you are tall. The battery-life cell prints 30 minutes, and the roller is there for stripes.
Pros
Cons
Best for: You want a light 32 cm collector with a rear roller for stripes on a small lawn that is already kept short.
Less suitable: You came for a mulch plug, or you are tall enough that a low handle would be uncomfortable.
Specifications
Common questions
Does the Yard Force mulch?
A mulch plug is not in the listing. It is sold as a collecting rotary with a rear roller. One reviewer stopped using the bag and left clippings.
Is a battery included?
Yes. The title includes a 40 V 2.5 Ah battery and a quick charger.
Is it self-propelled?
The title and bullets do not say so. The operation-mode cell says Automatic.
The Worx WG779E is a push mower at £203.99, and the highlight names two 20 V 2.5 Ah PowerShare packs plus a dual charger said to charge both packs in two hours or one pack in one hour. A mulch plug is not stated. Width conflicts: a bullet says 30.0 cm and a highlight says 34 cm, while height steps conflict between five and six and a cell prints a maximum of 70 centimetres against a 20–70 mm highlight. It is 4.1 from 44 reviews. Buyers on short grass call it light at 11.1 kg, and some small lawns are done two or three times on one charge. Runtime is the complaint: one buyer with about a third of an acre needed two or three charges, and another could not finish even with two charged packs. A highlight prints up to 280 m², which the bullets do not repeat.
Pros
Cons
Best for: You already use Worx 20 V packs and you want a collector for short grass, accepting that mulch is unconfirmed.
Less suitable: You need a named mulch plug, or you are trying to finish something like a third of an acre on the included packs.
Specifications
Common questions
Can the WG779E mulch?
The listing does not state a mulch plug. It states IntelliCut, a cut-to-edge design and a foldable handle.
What cutting width is printed?
A bullet says 30.0 centimetres. The item highlight says 34 cm. Both are on the capture.
Are batteries included?
The item highlight says two 2.5 Ah batteries and a dual charger. There is no separate included-components line.
The Hyundai HY20CLM33 is the lowest price in this set at £125.99: a 33 cm brushless mower with a stated mulching plug, cut-and-drop, a 32 litre bag, a battery and a charger. Across 51 reviews it is 3.9. Buyers praise the 10.3 kg weight, the plug, and a quieter cut than a previous petrol mower, and some small lawns finish with charge left. The specification table does not print an ampere-hour figure, though review text mentions 4.0 Ah and one review mentions a pair. One buyer says the grass collector will not stay attached, and another received an assembly bolt without a thread. A captured review describes a leaf sweeper and does not match this mower, so it should not be read as a cut test. The average-life cell prints 40 minutes.
Pros
Cons
Best for: You want the cheapest 33 cm 3-in-1 kit in this set and you can check that the collector clips on before the first cut.
Less suitable: You want a large, settled review sample, or you need the battery capacity printed in the specification table.
Specifications
Common questions
Does the Hyundai include a mulching plug?
Yes. The bullets offer cut and collect, cut and drop, or cut and mulch, and they say a mulching plug is included.
Is the battery size stated?
The title includes a battery and charger. Ampere-hours are not in the specification table. Review text mentions 4.0 Ah.
What do reviews say about the grass bag?
One buyer says the collector will not stay on a level lawn. Another review in the file describes a leaf sweeper and does not match this mower.
The Litheli is £239.99 for a 37 cm deck with a 40 litre box and two 4.0 Ah batteries in the title, and a charger is not named. The style name is Brushed, a mulch plug is not stated, and the star line is 3.8 from 24 reviews, the lowest and smallest sample here. On a small, already short lawn some buyers call it light at 16.2 kg, and one mowed a large lawn twice on the batteries. Charge times of about 10 hours and 10.5 hours appear against a quick-charge expectation, and one buyer’s batteries would not charge past 50 percent after three uses. After a year one mower dies halfway through a small garden. One reviewer had to remove an undocumented plastic guard before clippings entered the box. The listing’s area claim is up to 300 m², and the height cells print centimetres where the bullet lists millimetre steps.
Pros
Cons
Best for: You already know this U20 system and you only need a collector for a short lawn, after you confirm a charger is in the carton.
Less suitable: You want a mulch plug, a named charger, or a review sample larger than 24.
Specifications
Common questions
Does the Litheli include a charger?
The title includes two 4.0 Ah batteries and does not name a charger.
What height of cut is printed?
The bullet lists 25 mm to 75 mm. The specification cells say 25 centimetres and 75 centimetres.
Is mulching listed?
No. One reviewer had to remove a plastic guard before clippings reached the box, and the guide did not explain it.
Eleven amazon.co.uk listings were scored on 22 October 2026. The published score is the amazon.co.uk star rating multiplied by 20. Review-count notes, kit gaps and listing conflicts are written beside the number. They are not a second weight. A corded machine was removed before scoring. This is not a lab test of cut quality, runtime, noise or mulch.
Amazon star rating
100%The score is the amazon.co.uk star rating multiplied by 20. A 4.5 becomes 90, a 4.4 becomes 88, a 4.3 becomes 86, a 4.2 becomes 84, a 4.1 becomes 82, a 3.9 becomes 78 and a 3.8 becomes 76. The file publishes no other criterion percentage. Notes on review count, kit gaps and listing conflicts are not subtracted from that figure.
Start with the clipping path, then the kit, then the width and the battery family. A seller's square-metre line is a claim. The scores are amazon.co.uk stars times 20, captured on 22 October 2026. This is not a lab test.
A cordless mulching lawn mower is a battery rotary that chops clippings and returns them to the turf. The useful domestic versions also collect, because a UK lawn is often too long or too wet to mulch. You choose one by the clipping path, then by whether the carton is a full kit, then by width, weight and battery family. A seller's square-metre line stays a claim. Nothing here is a lab test of cut quality, runtime, noise or mulch. The clipping path comes first.
A bag, a rear roller or a side chute is not a mulch plug. Three listings in this set do not state a mulch path. Read the current page before you treat the search title as the spec.
Where the page prints two areas, two widths or a millimetre bullet against a centimetre cell, quote both. A midpoint is not the specification.
A body-only shelf price excludes the battery and the charger. Its area line belongs to a pack you supply. Add that cost before you call it cheaper than a kit.
Use the box for the first cut and for wet grass. If the plug stays fitted, the box will not fill. Do not take more than a third of the leaf, and raise the cut in a drought.
Prefer a named mulch plug or a mulching blade, and keep a grass box for the first cut and for wet grass. A collecting bag on its own is not a mulch path, and a rear roller is a stripe feature rather than a mulching deck. Side discharge that a listing calls mulching is not a rear plug. Where one line says there is no bag and another names a box, or where two area figures are printed, quote the pair. Do not average them into one specification.
Ten of these listings include at least one battery. A body-only price is comparable with a full kit only after you add the pack and the charger you still have to buy. The area line on a body belongs to the pack the listing names, which you supply. A title that includes batteries and does not name a charger has not confirmed a charger.
Three typical situations, each with a recommendation from this comparison.
You will carry a narrow mulcher for a courtyard, side lawn or caravan patch. The Swift EB122C states up to 50 m² and 5.2 kg, with a mulching blade and no bag named. A 33 cm machine is the step up only if you also want a box.
You already own an 18 V ONE+ pack, preferably 5.0 Ah. The Ryobi OLM1833B body includes a mulch plug and a 35 litre collector, and the price excludes the battery and the charger. The 250 m² line is for a pack you supply.
You want a stated mulch plug and a grass bag in one kit. The Worx WG737E is 37 cm with two 20 V 4.0 Ah packs. Treat the 550 m² line as a seller claim. The same job on another family is a Bosch kit or a Greenworks 2-in-1.
The top pick is the Worx WG737E, 4.5 from 207 amazon.co.uk reviews, at about £229.00, with a stated mulch plug, a grass bag and two 20 V 4.0 Ah packs. Two other listings share 4.5 stars: a Bosch kit on 54 reviews with one 4.0 Ah pack, and a 22 cm Swift with no bag stated. The best value is the Einhell GE-CM 18/33 Li at about £149.95, 4.3 from 7,288 reviews, with a battery and charger included. Its bullet calls side discharge mulching and conflicts with a highlight on the bag and the lawn area. The score is the star rating times 20. It is not a lab test.
Einhell GE-CM 18/33 Li kit
4.3 from 7,288 reviews at about £149.95 with a battery and charger included. The bag and area lines on that listing conflict.
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.
Mulching practice is the RHS and Warwickshire County Council. Noise limits are SI 2001/1701 Schedule 3 and the noise-test pointer in SI 2025/1073. Supply duties are the Supply of Machinery (Safety) Regulations 2008. Battery mowers are in the WEEE scope note. Prices, stars and conflicts are the amazon.co.uk captures dated 22 October 2026. Last checked 22 October 2026.
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 are the amazon.co.uk star ratings dated 22 October 2026, multiplied by 20. They are not a lab test, and they are not a promise of the cheapest price.
