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GreenWorks Chainsaw G-MAX 40V Brushless with 16" Bar

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Product overview

Product overview

The GreenWorks DigiPro 16" cordless chainsaw is the first petrol-comparable chainsaw and offers powerful performance and easy handling to make heavy duty jobs simple - all without the hassle of petrol.

Note: This tool does not include a battery or charger, these must be purchased separately.

Cleaning up your garden has never been easier. The strength and revolutionary design of this chainsaw will ensure durability and a smooth, precise cutting experience. There are no pull-starts, fuel mixing, or harmful emissions to worry about, just juice up the battery and get on with the job.

The ergonomic design means a well-balanced tool for superior cutting, meaning the DigiPro chainsaw is a great choice for pruning, while the over-mold grip handle and wrap-around handle ensure comfort, with safety taken care of by the large hand guard and chain brake.

An LED battery level indicator light makes it easier for the operator to determine battery life, and the translucent oil tank offers clear view of oil reserve to ensure the 16” bar and Oregon chain are kept lubricated for sharp cutting. Tool-less chain tensioning makes for quick and easy adjustments.

Powered by the interchangeable G-MAX 40V Lithium-ion battery system which delivers longer run time, higher performance, and greater output on all G-MAX tools (battery and charger sold separately).

GreenWorks Brushless DigiPro Series is an innovative solution for your garden tasks that rivals petrol-powered tools. Combined with the 40V G-MAX system, the Brushless DigiPro Series features a powerful brushless motor that improves the battery efficiency, delivers more power for greater performance, produces less noise and vibration, and extends the life of the motor for exceptional durability.

Traditional brushed motors tend to wear down over time, reducing efficiency and power. With a brushless motor, you can expect the same performance as the day you purchased it. The gear reduction design of the brushless motor also delivers greater torque.

Revolutionise your power garden tool arsenal with the amazing G-MAX DigiPro Brushless 16” Chainsaw and 40V battery system today.

About GreenWorks The future is here and it's electric. Once you’ve experienced the power, convenience and economy of a 40V garden tool there will be no going back. The G-MAX 40V Li-Ion range from GreenWorks is already a best-seller in the US and Europe, now it’s ready to revolutionise the way Kiwi’s take care of their backyard.

GreenWorks tools are clean, green, quiet and maintenance free, with no compromises – experience the future today.

• Powerful DigiPro brushless motor technology delivers greater performance with up to 100 cuts on a single charge.
• High performance G-MAX 40V Lithium-Ion battery system gives fade-free power with no memory loss (battery and charger sold separately)
• 16" Oregon Bar and Chain cuts up to 30" logs. The longest bar and chain on any cordless chainsaw yet.
• Brushless motor delivers up to 30% more torque for the greatest cutting performance.
• Brushless motor design offers up to 70% less vibration for user comfort while working.
• Chain brake and low kickback chain for increased user safety.
• Electric motor gets you started within seconds and eliminates the hassle of gas pull cords and harmful emissions
• Tool-less chain tensioning for quick adjustment
• One GreenWorks G-MAX 40V battery powers all Greenworks 40V tools (battery and charger sold separately)
• 4 Year Greenworks Tool Warranty

Product code: 20077
Model: GD40CS40
Size: 40 cm
Voltage: 40V
Motor: Brushless, DigiPro control
Sound power level: 87 dB(A) +/- 3 dB(A)
Vibration level: <2.5 m/s2
Chain speed: 11 m/s
Chain gauge: 0.043"
Chain pitch: 3/8"
Oil tank volume: 200ml
Oiling system: Automatic
Chain brake: Electric
Weight w/o battery: 3.6kg

View user manual

View product video


Can we help?

Our friendly and knowledgeable gurus are trained to answer all your questions as quickly as possible. So if there’s anything you need to know just give us a call during business hours, or send us an email any time.

0800 800 880
Customer questions

Questions and answers

1 vote
q: Just wondering who fixes these if something goes wrong cheers
a: We have a natiowide network of service agents.
By Trade Tested on November 20, 2020
1 vote
q: How many Ah does the battery have
a: This is just the skin, so no battery included. We recommend the 4.0Ah battery for this model (we sell this as a kit) but there are also 2.0Ah and 6.0Ah batteries available.
By Trade Tested on May 11, 2020
0 votes
q: Kia ora, I have purchased one of the above chainsaws and would like to purchase a chain file/jig for sharpening the chain and some chain lube, could you send me a link for both if you have them please?
a: We don't sell files at this stage, however there are plenty available online or locally from specialists. You need one for a 3/8" chain. We sell Synforce Chain & Bar Oil, if you look at the 'Frequently Bought Together section above it is listed, or just search 'Synforce' on our website.
By Trade Tested on February 7, 2019
Customer reviews

Customer reviews

Overall rating

4.8 out of 5 stars from 43 reviews
None Wellington

40v 16 inch bar

5 months ago


Good saw very handy

Cato the younger Bay of Plenty

Modern suburban grunt

6 months ago


Actually I am semi rural, but when I lived in town (Rotorua) it was petrol chainsaw city every weekend. This is quiet and does the jobs that I trust myself to do safely. I get my testosterone elsewhere. Very good machine and the battery lasts and lasts.

Wade Northland

Just like a petrol one just better

7 months ago


As a 70 year old who does a little chainsawing (trimming, felling small trees, firewood) this saw is ideal. It achieves the benefits of battery power (light, easy start/stop) with no loss of performance. I've also got a 12 inch model but this is quite a lot closer to a truly professional model. Battery life is great and ideal for an old.

Moose Canterbury

GreenWorks Chainsaw G-MAX 40V Brushless 16" 4.0Ah Kit

7 months ago


A excellent product, I cut down two big trees, cut them up and still had charge on the battery. I'm very happy with this product.

Stu Northland

16” Chainsaw

7 months ago


Cut 35 year old bottlebrush tree with ease, battery lasted almost an hour, excellent product.

Doug Motueka


8 months ago


Great tool, light, easy to use, transport and assembly. The only problem neighbours and mates borrowing it.

Benny the Bull Auckland

GreenWorks Chainsaw G-MAX 40V Brushless 16" 4.0Ah Kit

9 months ago


The GreenWorks Chainsaw Kit really works great.

Joe Southland

Joseph Beaumont

9 months ago


Powerful and lightweight. Instant start and stop. Not too noisy. Chomped through a load of my oversized firewood in 20 minutes with plenty of charge to spare. Brilliant. Best chainsaw I've ever owned!

?? Auckland

I'm not sure what 'Review Title' means ??

9 months ago


Very happy with the chain-saw, most excellent. I have been extolling it's virtues and recommending it and your store to everyone I talk to about it. Never liked using chainsaws but since getting this I can't use it enough ! At some stage soon I will be after a second battery to extend my fun on the property - I have a wooded property and need to cut trees for firewood. I have been using Bow saws since the 1980's and dreaded the work, seeing I'm now 70 - different story now :D :D Thank you Trade Tested, and thank you Greenworks, I have no problem recommending both :D

Callum Southland

Greenworks chainsaw

10 months ago


Quite impressed, goes good, no fuel is a plus.

Terry Hawke's Bay

16" green works chain saw

10 months ago


I am impressed with it, easy to start no fumes cut well so impressed. I ordered the pole saw arrived last Friday and used it over weekend impresses with this as well I do have 2 batteries and am sure I will need them. I am stocked with the products and will look at a pole hedge trimmer next better save up first.

Garden Bird Auckland


10 months ago


This chainsaw is excellent - strong, with useful safety cut-off when overloaded. Doesn't like wet branches like cabbage trees, but was even used by a tradesman to top 30 year old retaining poles (hard as) when his petrol unit ran out of gas.

Dougo Auckland

Good chainsaw - poor communication

10 months ago


Good chainsaw - doesn't come with oil. So BUY CHAIN OIL or you cannot use the thing. They should mention that. Otherwise it definitely did the job. A good mid range "suburban" chainsaw. I recommend it

Phillly Wellington

Great value

11 months ago


Great saw and cutting

Sir Kaikohekohe


11 months ago



Chainsaw Charlie whitianga

fire wood wonder

12 months ago


Better than sliced bread, powers through large wattle logs. No problem.

EFS Waikato

GreenWorks Chainsaw G-MAX 40V Brushless with 16" Bar

12 months ago


Great little chainsaw, however fast battery drain on the bigger cuts. The bar is a little flimsy compared to the equivalent sized petrol chainsaw and it uses non standard chain so Greenworks chain is the only option. Overall very easy to use and does a good job.

Senior Lady King Country

Cool tools

about 1 year ago


I'm a 70 year old woman who decided to buy a chainsaw, it's the greatest tool - winter firewood is felled and cut up. Battery charge and power is amazing. Go on just but it! Since bought the Pole Saw and oil.

John Auckland

A Stunner

about 1 year ago


The GreenWorks 16" chainsaw is more than a toy. It really works. We've done a fair bit of firewood type cutting including trimming and cutting up large (350 mm) limbs off overhanging eucalypts. The battery lasts at least double what we expected and you can do two or three hours chainsawing on a charge. Great safety features, easy to adjust. You do need to adjust your thinking a little to accommodate the way the saw copes with overloads by switching out - by letting the saw cut at its own pace, which is comparable to a petrol powered unit of the same size. It's so good people want to help do the work. Well done Greenworks!

B Te

Happy Happy

about 1 year ago


So easy to use and light, buzzed through the firewood no problems. No need to call my bro to bring his around, real good for senior 60+ girl power

Trevor Southland

Brushless chainsaw

about 1 year ago


Bl%#@y brilliant, when they bring out a 20 inch blade I’ll be in the queue for one. Photo of brother in-law up the first pine that’s coming down. 4amp batt lasted awhile, I found best to have 2 batts though.

Greg Wellington

GreenWorks Chainsaw G-MAX 40V

about 1 year ago


More than met expectations. Cuts like a normal chainsaw - except much quieter. Have tackled tree trunks the full width of the blade without any problem

Jaco Auckland

green works chainsaw G_Max

about 1 year ago


had plenty of use since purchased this, its great.

R Cooper Manawatu

Chainsaw what a beaut.

about 1 year ago


What a great little chainsaw so light and easy to handle, with an amazing amount of power. I ripped a piece of Matai aproximately 800mm long and it went thru this and I still had over 3/4 of the battery left. Then I crosscut some silver birch and it went thru like butter. All in all a great machine with good cutting capacity for it's size. Great in the workshop no petrol fumes.

Uncle g Hamilton

great saw

about 1 year ago


I read reviews of battery chainsaws in this class, this model was very well received when first released but has been out for a little while and apparently surpassed. However I have several items of the Greenworks battery gear which I am pretty happy with and wanted to use the same battery across all. So I was really surprised and pleased when i received this: More powerful than I expected and as with all the battery gear so nice to use, quiet and convenient. I haven't noticed any chain oil leak as mentioned in another review. It did throw the chain once but I was cutting on a sharp angle and it was pretty easy to get back on, adjustments etc are all really straight forward and tool free. Very good product.

G Auckland

Greenworks 16 in chsindaw

about 1 year ago


Powerful "real" chainsaw. Battery good capacity.

KenA Auckland

Greenworks G-MAX 16” Chainsaw

about 1 year ago


Everything I expected

Wainuimower Wellington

The only Chainsaw you will need

about 1 year ago


This Chainsaw is very powerful and the battery lasts forever no hassle of trying to start it as push of a button and its on. Cut down a tree on one charge.

Wainuimower Wellington

Does All

about 1 year ago


This is an amazing chainsaw with a very long lasting battery cut down a full tree off one charge with still battery to spare.

Mahgni Christchurch

Great saw

about 1 year ago


A revelation after using petrol saws. Quiet and no fumes. Try it and you won't go back to petrol.

Scruffy Southern Hawkes Bay

Awesome battery life

about 1 year ago


brought for the wife who is very delighted with the ease of operation compared to her petrol chainsaw.

Phil Paraparaumu

Battery chainsaw

about 1 year ago


Very good for urban use, less noise is great, as is push button start. Only minus is that the chain oil leaks in storage.

Sheryl Canterbury

Handy wee tool

over 2 years ago


Works really well on the small jobs and its nice and light to handle. We've already used it heaps.

Chris Manawatu


over 2 years ago


Surprisingly grunt for it's size and weight. Made light work of quite large trees and branches. Very easy to adjust chain tension. I won't be going back to a petrol powered saw.

Cid Rai


over 2 years ago


Saw. Yeah it works well for small stuff, don't have to use my big saw on everything.

Kevonz Auckland

The Real Deal

over 2 years ago


This machine does all the things I hoped it would and more. I'm happy with the purchase and the machines performance

Don Wellington

Impressive little saw

over 2 years ago


I bought this saw after seeing some really good reviews, and it sure lives up to it's reputation. Really easy to use and makes short work of small trees, the 4.0Ah pack lasts longer than i expected, cutting down a decent size tree and reducing the whole thing into firewood size chunks on a single charge (I think the 2.0Ah would be a bit small). Overall a very impressive little package. I went and bought the polesaw immediately after as I was so impressed.

Mikc Manawatu

GreenWorks Chainsaw

over 2 years ago


Have found this saw so good for the go to saw on farm when you need a little job done also great for fencing and construction.

Peter Auckland

Greenworks Chainsaw G-Max 40V Brushless 16" bar

over 2 years ago


Great performance and very quiet compared to petrol type light to handle and very convenient not having to mix petrol. Would Highly Recommend and also great service and fast delivery.Thank You Trade Tested.

Peter Auckland

Greenworks Chainsaw G-Max 40V Brushless 16" bar

over 2 years ago


Excellent chainsaw. Light to use,convenient battery power no mixing petrol anymore. Would Highly Recommend this product.

Shaun Auckland

GreenWorks Chainsaw G-MAX 40V Brushless

over 2 years ago


I was concerned that a battery operated chainsaw would not perform - I am very happy to say it is brilliant plus it is lighter than a petrol equivalent. It is also very quiet so far less noise invasive to neighbors.

Morri Manawatu

Great battery chainsaw

over 2 years ago


Have bought this to use on our farm for cutting up firewood and felling small trees. Has worked like a charm, plenty of power, simple operation and low noise. Love not having to pull cord to start and no petrol! I do recommend getting 2 or more batteries and perhaps the fast charger if you are wanting to spend a day doing firewood as it goes through the batteries quite quickly when you're dealing with large logs. Seems well constructed and sturdy.

Gavin Auckland


over 2 years ago


Was never sure they would work as well as they should. How we took the plunge and purchased this chain saw. Fantastic, have used numerous times on small trees and branches. Even took off a branch that was 30cm diameter. Will purchase more in this range

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