# Best Cordless Chainsaw 2026: 10 Ranked, and Why 40V Isn't 40V

Source: https://www.ranked10.co.uk/garden/best-cordless-chainsaws
Published: 2026-09-15 | Updated: 2026-09-16 | Prices checked on Amazon UK on 2026-09-15

Voltage on a cordless chainsaw listing is not measured the same way twice. Dong Cheng describes its '40V' saw as running on 'dual 20V (40V total) batteries'. Supstable's '21V' packs sit in the same nominal 18V class as the Ryobi and Einhell tools. Bosch sells one saw twice: the same AdvancedChain 36V-35-40 is £179.95 as a bare tool and £256.00 with a 2.0Ah battery and charger, so that battery and charger add £76.05. Meanwhile several 'Horsepower' fields are just volts or watts dropped into the wrong box — Bosch's bare saw reads '36', the Supstable saw reads '1000 Watts', the Ryobi reads '18 Watts'.

We ranked ten of the best cordless chainsaw listings on Amazon on the things that survive a second look: what is actually in the box, the bar length in centimetres, the weight the spec table claims against the weight in the bullet points, the review histogram rather than the star average, and whether the wattage, voltage and horsepower fields agree with each other.

## The ranking

### 1. Greenworks 40V 14in (35cm) Brushless Chainsaw Kit, 2 x 2Ah

- Price: £235.99 | Amazon rating: 4.2 from 247 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/greenworks-40v-cordless-chainsaw
- Buy on Amazon: https://www.amazon.co.uk/dp/B086Z5YB7S?tag=ranked10-21

It takes the top spot as the most complete cordless chainsaw kit here: two 40V 2Ah batteries, a 35cm bar and 3.4 kg on the spec sheet.

This is the only saw in the ten that arrives with two batteries rather than one, and the second one is the point: the listing promises 'one to run and one on charge'. The motor is quoted at 12 m/s chain speed and up to 30% more power and run time than a brushed version. The spec table lists 3.4 kg; the bullet point above it says 3.5 kg. That 100g gap tells you nothing about the saw and a lot about how these pages get filled in.

In practice the 35cm bar and the 180ml translucent oil tank are the numbers that matter daily. An automatic oiler means no stopping to drip oil onto the chain, and the kickback brake stops the chain instantly on recoil. Greenworks sells this as a brushless cordless chainsaw on its own 40V platform, so both 2Ah packs also run any other Greenworks 40V tool you own.

That said, 4.2 stars from 247 ratings is the second-lowest score in this top five, and 8 of the 100 ratings shown are one-star. If you already own a 36V Bosch or 18V Ryobi battery, buying into a third platform is the expensive part, not the saw.

Pros: Two 2Ah 40V batteries and a charger included at £235.99 — the only twin-battery kit in the top three.; 35cm bar, 12 m/s chain speed, brushless motor quoted at up to 30% more power and runtime.; Automatic oiler with a 180ml translucent tank you can check at a glance.; 3.4 kg on the spec sheet, soft-grip handles and instant chain stop on kickback.; Three-year product warranty, two years on the batteries.
Cons: The bullet says 3.5 kg, the spec sheet says 3.4 kg — two numbers, same page.; 'Horsepower: 1.5' sits in the spec table, in the same field Bosch fills with '36' and Ryobi with '18 Watts'.; 4.2 stars from 247 ratings, with 8 one-star and 6 two-star ratings in the histogram.; £235.99 is the highest price in this list.

### 2. Bosch AdvancedChain 36V-35-40 Brushless Chainsaw (Bare Tool)

- Price: £179.95 | Amazon rating: 4.5 from 96 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/bosch-advancedchain-36v-bare-tool
- Buy on Amazon: https://www.amazon.co.uk/dp/B0BVVXC2HV?tag=ranked10-21

Second because it is the same saw as the £256.00 kit at the bottom of this list, minus £76.05 of battery and charger.

Bosch lists this saw's 'Horsepower' as 36. That is not horsepower, it is the volts, dropped into the wrong field. Set that aside and the hardware is the same 36V brushless unit as the £256.00 kit in tenth place: 14 m/s chain speed, OptiCut torque and speed adaptation, tool-free assembly, and 2.88 kg here against 3.56 kg for the version with the 2.0Ah battery fitted. By contrast, the £76.05 difference buys a battery, a charger and 680g.

In practice this is the saw for someone already inside Bosch's 36V system. The box is deliberately thin: the tool, a scabbard, a chain and bar, a 50ml starter oil bottle and a tensioning aid. No battery, no charger, and no oil beyond that starter bottle.

Worth noting the review base: 96 ratings at 4.5, with 7 one-star against 80 five-star. That is a small sample next to the Ryobi's 2,168, and small samples swing easily in both directions. If you own no 36V battery, this is the wrong end of the range to start from — the kit in tenth place is the simpler way to buy the same machine.

Pros: Same 36V brushless saw as the £256.00 kit, for £76.05 less — provided you own a Bosch 36V battery.; 14 m/s chain speed with OptiCut torque and speed adaptation.; 2.88 kg, lighter than every full-size saw here.; Tool-free assembly and a 2-year Bosch manufacturer warranty.; 4.5 stars from 96 ratings, with 80 of the 100 shown at five-star.
Cons: No battery, no charger, no oil beyond a 50ml starter bottle.; 'Horsepower: 36' is the voltage in the wrong field.; 7 one-star ratings out of 96 — a small, mixed sample.; Batteries and the AL 36V-20 charger are separate purchases.

### 3. Ryobi 18V ONE+ 30cm Brushless Chainsaw (Bare Tool)

- Price: £169.96 | Amazon rating: 4.5 from 2,168 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/ryobi-18v-one-30cm-chainsaw
- Buy on Amazon: https://www.amazon.co.uk/dp/B06WRNLQPP?tag=ranked10-21

Third on the strength of 2,168 ratings at 4.5 — the largest review base in this top ten — for a bare 18V tool at £169.96.

The largest body of evidence here belongs to this one: 2,168 ratings at 4.5, with 74 five-star and 5 one-star in the histogram Amazon shows. The spec table, though, lists 'Horsepower: 18 Watts'. Those are volts in one field and watts in another, and neither is horsepower. The same table gives the item dimensions as 2.1L x 0.49W x 2.4H metres — a 2.1-metre saw. Treat that row as decoration and use the bullets instead: 30cm Oregon bar and chain, 10 m/s chain speed, 18V brushless motor.

In practice this is the cordless electric chainsaw for someone already inside ONE+. Ryobi sells over 100 tools on the same 18V packs, and this one arrives as a bare tool with bar and chain oil and a bar sheath, nothing more. Automatic oiling and tool-less tensioning are both there, plus a mechanical chain brake for the kickback case.

The catch is the price of entry. At £169.96 for the tool alone, a battery and charger on top pushes it past several complete kits in this list. If you are not already in the ONE+ system, the arithmetic does not work. Even so, 4.49 kg with a 30cm bar is a serious pruning saw, not a toy — the listing even calls it a 'barezero tool'.

Pros: 2,168 ratings at 4.5 — the biggest review base in this article.; 30cm Oregon bar and chain with a 10 m/s chain speed.; Automatic oiling, tool-less chain tensioning and a mechanical chain brake.; ONE+ platform: the same 18V battery fits over 100 Ryobi tools.; 5 years of EU spare part availability is stated on the listing.
Cons: Bare tool at £169.96 — battery and charger are extra.; 'Horsepower: 18 Watts' and dimensions given in metres: three wrong fields in one table.; 4.49 kg is heavy for an 18V saw.; 5 one-star and 1 two-star rating in the histogram.

### 4. Einhell 18V PXC Cordless Chainsaw, 25cm, 3.0Ah Kit

- Price: £88.49 | Amazon rating: 4.3 from 4,106 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/einhell-ge-lc-18-25-chainsaw
- Buy on Amazon: https://www.amazon.co.uk/dp/B01IVS4SBE?tag=ranked10-21

The cheapest saw here at £88.49 with 4,106 ratings at 4.3 — if the battery is genuinely in the box, which the listing disputes.

Two numbers on this page do not agree. The title says 'with Battery and Charger 18V PXC' and the bullets describe the GE-LC 18/25-1 'Kit (1x 3,0 Ah)'. The Item Type Name field, meanwhile, says 'Battery and Charger Not Included'. At £88.49 with 4,106 ratings at 4.3, this is the cheapest cordless chainsaw in this top ten — but which version arrives is the question to settle before you order.

In practice the hardware is a 25cm bar with a 23cm cutting length, a 1.1mm drive link thickness, 40 drive links and a 3/8-inch chain pitch. Chain tensioning is tool-free, lubrication is automatic, and a metal bumper spike plus a chain catch pin cover the safety side. The quoted cutting speed is 4.5 m/s.

That said, this is a light-duty cordless saw. Against 10 to 14 m/s on the bigger tools here, 4.5 m/s will feel slower in anything but small branches. If you are felling beyond garden timber, the 30cm and 35cm saws above will finish sooner. Worth noting too that the '1x 3,0 Ah' comma formatting suggests the copy was written for a European SKU.

Pros: £88.49 — the lowest price in this top ten.; 4,106 ratings at 4.3, the second-largest review base here.; 25cm Oregon bar and chain, automatic lubrication, tool-free tensioning.; Part of Power X-Change, so the batteries fit other Einhell 18V tools.; Kickback protection with a chain brake and a chain catch pin.
Cons: The listing contradicts itself: 'with Battery and Charger' in the title, 'Battery and Charger Not Included' in the item type field.; 4.5 m/s quoted cutting speed, roughly a third of the big saws here.; 4.09 kg is heavier than the 40V Greenworks.; 6 one-star and 4 two-star ratings in the histogram.

### 5. Supstable 12in Brushless Chainsaw Kit, 2 x 21V 4.0Ah

- Price: £89.99 | Amazon rating: 4.5 from 4,388 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/supstable-s3-apex-chainsaw
- Buy on Amazon: https://www.amazon.co.uk/dp/B0FN3BYMZ9?tag=ranked10-21

Fifth: the best-selling saw in the category, ranked #1 in Chain Saws with 4,388 ratings at 4.5 — and a '21V' pack that is the same nominal 18V class as the Ryobi and Einhell batteries.

Amazon ranks this #1 in Chain Saws, and 4,388 ratings at 4.5 back it up. The voltage label needs translating, though. Supstable calls its packs '21V 4000mAh'; a charged 18V lithium pack reads around 21V, which puts these in the same nominal 18V class as Ryobi ONE+ and Einhell PXC. The spec table's 'Horsepower: 1000 Watts' is another field filled with the wrong unit — watts, not horsepower.

On paper the Supstable offers the most for the money: two batteries, a fast charger, gloves, a 12-inch bar, 10 m/s chain speed, a 150ml translucent oil tank with automatic lubrication, and up to 120 cuts per charge. At 2.4 kg it is genuinely light, and tool-free tensioning means no wrench in the field. In practice that makes it a cordless chainsaw with battery and charger for the price other brands charge for the bare tool.

However, 120 cuts per charge is a battery claim, not a cutting claim: it says nothing about wood diameter or how long each cut takes. In theory two packs cover a full afternoon; in reality 4,000mAh at 18V nominal runs down faster under load. If you need to fell a mature tree, this is the wrong class of tool — buy it for pruning, hedge work and small logs.

Pros: #1 in Amazon's Chain Saws category, with 4,388 ratings at 4.5.; Two 4,000mAh packs and a fast charger included at £89.99.; 2.4 kg — the second-lightest saw in this list.; Automatic chain lubrication with a 150ml translucent tank.; Tool-free chain tensioning and a brushless motor.
Cons: '21V' is a charged-state reading for an 18V nominal pack, not a bigger battery.; 'Horsepower: 1000 Watts' — the wrong unit in the wrong field.; 12-inch bar and 10 m/s chain speed limit it to branches and small logs.; 3 two-star and 5 one-star ratings among the 100 shown.

### 6. DEWALT 18V XR 30cm Brushless Compact Chainsaw (Tool Only)

- Price: £179.45 | Amazon rating: 4.2 from 52 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/dewalt-18v-xr-compact-chainsaw
- Buy on Amazon: https://www.amazon.co.uk/dp/B0F67J1WMD?tag=ranked10-21

Sixth because it promises 100 cuts per charge and a 25cm cut capacity, while the 'Power source' field says AC Power on a battery-only tool.

Here is a listing that argues with itself. The tool is an 18V XR brushless saw, sold without battery, yet the Power source field says 'AC Power'. The Chain Speed field says 'Variable Speed', which is not a speed. Meanwhile the useful numbers hold up: a 30cm bar and chain that DeWalt says will cut wood up to 25cm in diameter, and up to 100 cuts per charge.

In practice this is the compact saw for building sites and for people already carrying 18V XR packs. Tooled chain tensioning uses a bar clamping mechanism with a wrench stored on the tool itself, which is slower than the tool-free systems above but harder to get wrong on site. The 4.6 kg body and 80cm overall length make it the longest saw here.

The catch is the price: £179.45 for a bare tool with only 52 ratings at 4.2, the thinnest evidence base in this top ten. Ten of those 100 ratings are one-star. If you do not already own 18V XR batteries, this is a poor first purchase. If you do, it is a well-built 30cm saw with a 3-year warranty.

Pros: 30cm bar and chain rated for wood up to 25cm in diameter.; Up to 100 cuts per charge claimed from the 18V XR brushless motor.; Wrench stored on the tool for chain tensioning.; 3-year DeWalt manufacturer warranty.; Compact design despite the 30cm bar.
Cons: Tool only at £179.45 — no battery, no charger.; 'Power source: AC Power' on an 18V battery tool, and 'Variable Speed' in the chain speed field.; 4.6 kg, with 52 ratings at 4.2 and 10 one-star ratings.; Tooled, not tool-free, chain tensioning.

### 7. Dong Cheng 20V Brushless 12in (30cm) Chainsaw Kit, 2 x 4.0Ah

- Price: £104.49 | Amazon rating: 4.1 from 98 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/dong-cheng-20v-brushless-chainsaw
- Buy on Amazon: https://www.amazon.co.uk/dp/B0GQXWB85Z?tag=ranked10-21

Seventh: a £104.49 twin-battery kit with a 12 m/s chain speed, undone by a weight that reads 5.5 lbs in the bullet and 4.79 kg in the spec sheet.

The weight on this page moves by about 2.3 kg depending on where you look. The bullet point says 'just 5.5 lbs (with battery)', roughly 2.5 kg. The spec table says 4.79 kg. Both cannot be right, and the spec sheet is the one that usually comes off the warehouse scales. What is consistent: a 12-inch (30cm) bar, 12 m/s chain speed, two 4.0Ah batteries and a claimed 80 cuts per charge through 4x4 inch wood.

The features are aimed at first-time users: tool-free chain tensioning on a side-mounted dial, an automatic oiler, and a chain brake rated to stop the chain in under 0.12 seconds. One detail to check before ordering — the Included Components field names only 'Battery pack'. The charger is not listed there, though the kit copy refers to fast charging.

Even so, 4.1 stars from 98 ratings is the second-lowest score in this list, and 13 of the 100 ratings shown are one-star. If you want a budget battery chainsaw for light pruning, it will do the job. If you want one for regular firewood work, that rating and the weight discrepancy are reason to look at the Greenworks kit instead.

Pros: Two 4.0Ah batteries and a 12 m/s chain speed at £104.49.; 30cm (12-inch) bar with tool-free tensioning on a side-mounted dial.; Automatic chain oiler built in.; Chain brake rated to stop the chain in under 0.12 seconds.; Claimed 80 cuts per charge through 4x4 inch wood.
Cons: Bullet claims 5.5 lbs with battery; the spec sheet says 4.79 kg.; Included Components lists only 'Battery pack' — the charger is not named.; 4.1 stars from 98 ratings, with 13 one-star in the histogram.; 4.79 kg is heavy for a 12-inch saw.

### 8. SEYVUM 12in Mini Chainsaw with 2 x 4.0Ah Batteries and 2 Chains

- Price: £79.99 | Amazon rating: 4.5 from 1,325 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/seyvum-lj-002-cordless-chainsaw
- Buy on Amazon: https://www.amazon.co.uk/dp/B0GWM5PMN2?tag=ranked10-21

Eighth: the lightest tool here at 1.7 kg with a 1,200W motor claim — and an 'Auto Oiling' highlight that the rest of the listing contradicts.

This is the lightweight cordless chainsaw of the group: 1.7 kg (3.9 lbs) and built for one-handed use. The motor is quoted at 1,200W, a wattage claim on a battery tool that tells you nothing about bar length or torque. Chain speed is given as 29ft/s, about 8.8 m/s, against 10 m/s from the other 12-inch saw here — so this is the slower of the two minis.

In practice the small size is the whole point: one hand, 12-inch bar, two 4.0Ah batteries and a claimed 30-45 minutes of cutting per charge. The kit is generous — two chains, two batteries, a dual charger, gloves, goggles and a manual. Note that the item highlight says 'Auto Oiling', while the bullets describe an easy-press manual oiling system, and the note tells you to add oil and let the machine run for about 10 seconds before cutting.

The catch is the sample: 4 one-star and 3 two-star ratings against 73 five-star in the 100 shown. A 1,200W claim on a 20V pack is marketing arithmetic, not measured output. For hedge trimming, lopping branches and small logs, this is fine. For firewood by the cubic metre, the 35cm and 41cm saws above are the right tools.

Pros: 1.7 kg — the lightest saw in this list.; Two 4.0Ah batteries, a dual charger, two chains, gloves and goggles at £79.99.; 1,325 ratings at 4.5.; 30-45 minutes of claimed cutting time per charge.; One-handed balance for pruning and lopping.
Cons: Item highlight says 'Auto Oiling'; the bullets and the note describe a manual oiler.; 29ft/s (about 8.8 m/s) is the slowest quoted chain speed here.; '1,200W' is a motor claim on a 20V battery pack, not a measured output.; 4 one-star and 3 two-star ratings among the 100 shown.

### 9. Dong Cheng 40V Brushless 16in (41cm) Chainsaw Kit, 2 x 4.0Ah

- Price: £149.99 | Amazon rating: 4.0 from 64 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/dong-cheng-40v-chainsaw
- Buy on Amazon: https://www.amazon.co.uk/dp/B0FBRQYWB9?tag=ranked10-21

Ninth: the longest bar here at 16 inches, and the clearest example of a '40V' label that is two 20V packs run in series.

This is where the voltage label unravels. Dong Cheng calls it a 40V saw, then describes it as running on 'dual 20V (40V total) batteries' — the same arrangement as any other 2x20V tool. Greenworks brands its 40V packs without that explanation, which makes the two labels look like different classes of machine. They are not. The rest of the spec is honest about scale: a 16-inch (41cm) bar, 14 m/s chain speed and 7.94 kg.

In practice the bigger bar and 4.0Ah packs are what you pay for: a claimed 120 cuts through 4x4 lumber per charge, tool-free tensioning, an automatic oiler and an inertia chain brake rated under 0.1 seconds. This is a battery chainsaw built for small tree felling and firewood, not for tidying a hedge.

However, the review distribution is the worst in this top ten: 9 one-star and 10 two-star ratings among the 100 shown, against 58 five-star, for 4.0 stars from 64 ratings. At 7.94 kg it is also more than twice the weight of the 40V Greenworks. If you need a 41cm bar, this is the cheapest way to get one. If you need to hold it above shoulder height, it is the wrong saw.

Pros: 16-inch (41cm) bar — the longest in this top ten.; 14 m/s chain speed from a brushless motor.; Two matched 4.0Ah packs and a charger at £149.99.; Tool-free tensioning, automatic oiling and an inertia chain brake under 0.1s.; 120 cuts through 4x4 lumber claimed per charge.
Cons: '40V' is two 20V packs in series, as Dong Cheng's own copy states.; 7.94 kg — the heaviest saw here by a wide margin.; 9 one-star and 10 two-star ratings among 100; 4.0 stars from 64.; The included items list a charger and batteries, but no bar oil or case.

### 10. Bosch AdvancedChain 36V-35-40 Chainsaw Kit with 2.0Ah Battery

- Price: £256.00 | Amazon rating: 4.4 from 18 ratings
- Full review: https://www.ranked10.co.uk/garden/best-cordless-chainsaws/bosch-advancedchain-36v-35-40
- Buy on Amazon: https://www.amazon.co.uk/dp/B0C5JX4WHM?tag=ranked10-21

Tenth: the same 36V saw as the £179.95 bare tool in second place, with a 2.0Ah battery and charger added for a £76.05 premium.

This is the second half of the Bosch puzzle. The saw is identical to the £179.95 bare tool in second place — same 36V brushless motor, same 14 m/s chain speed, same OptiCut system. What changes is the box and the weight: 3.56 kg here against 2.88 kg bare, and £256.00 against £179.95. The difference is £76.05, and what it buys is a 2.0Ah battery, an AL 36V-20 charger and 680g.

In practice that is the whole decision. If you own Bosch 36V batteries, £76.05 for a second 2.0Ah pack is poor value next to the bare tool. If you own none, the kit is the only way to run the saw on day one, and 2.0Ah on a 36V saw with a 35cm bar is a small pack for the work that bar can do.

Worth noting the ratings split: 4.4 stars from only 18 ratings, and, unusually, 25 of the 100 ratings shown are three-star with no one-star or two-star ratings at all. That is an odd distribution for a £256.00 saw, and a thin sample to judge it on. That said, it is the same machine rated 4.5 from 96 ratings further up this list.

Pros: Same 36V brushless saw and 14 m/s chain speed as the £179.95 bare tool.; Battery, AL 36V-20 charger, scabbard, chain, bar, starter oil and tensioning aid included.; OptiCut torque and speed adaptation with tool-free assembly.; 4.4 stars from 18 ratings.; 2-year Bosch manufacturer warranty.
Cons: £256.00 — the most expensive saw in this top ten.; The battery and charger account for £76.05 of that price.; 2.0Ah is a small pack for a 36V saw with a 35cm bar.; 18 ratings, and 25 three-star ratings among the 100 shown — a thin, unusual sample.

## Verdict

For most homes the Greenworks 35cm kit at £235.99 is the safest buy: two 2Ah batteries, 3.4 kg on the spec sheet, 12 m/s chain speed and 64 five-star ratings out of the 100 shown. If you already run Bosch 36V, the bare AdvancedChain at £179.95 is the same saw as the £256.00 kit without the £76.05 battery and charger. And if you want the cheapest route into a cordless chainsaw, the Einhell at £88.49 has 4,106 ratings at 4.3 — though its own listing contradicts itself on whether the battery is in the box. In short, treat cordless chainsaw reviews as invoices rather than brand rankings: check what is included, in what voltage class, before you compare prices.