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Greenworks Chainsaw G-MAX 40V Li-Ion 12" 2.0Ah Kit

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Product overview

Upgrade your garden power tool arsenal with this awesome 40V 12” chainsaw from Greenworks.

Forget about mixing fuel, pull starts, making a racket and harming the environment, with the 40V G-MAX range from Greenworks, that’s all in the past. Just juice up the battery, hit the button and you’re on task immediately.

The lightweight, ergonomic design means a well-balanced tool for superior cutting, making this saw 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, chain brake and dual-switches, which guard against accidental activation.

An LED battery level indicator light makes it easier for operator to determine battery life, and the translucent oil tank offers clear view of oil reserve to ensure the 12” bar and Oregon chain are kept lubricated for sharp cutting. Tool-less chain tensioning makes for quick and easy adjustments.

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.

• High performance G-MAX 40V Lithium-Ion battery system gives fade-free power with no memory loss
1x 40V 2.0Ah battery, 1x battery charger included
• Lightweight, ergonomic design
• Robust 12'' steel bar and chain with tool-less chain tensioning
• 10mm (3/8'') chain pitch delivers the right amount of capabilities to get those limbs trimmed and cut with minimal kickback
• Automatic oiler applies oil to bar and chain when needed to ensure durability and optimal use
• Translucent oil tank for clear view of oil level
• One Greenworks G-MAX 40V battery powers all Greenworks 40V tools
• 4 Year Greenworks Tool Warranty
• 3 Year Greenworks Battery Warranty

Product code: 20117
Model: G40CS30
Size: 30 cm
Voltage: 40V
Motor: Brushed
Sound power level: 96 dB(A), +/- 3 dB(A)
Vibration level: <2.5 m/s2
Chain speed: 4.3 m/s
Chain gauge: 0.05 mm
Chain pitch: 3/8"
Oil tank volume : 120ml
Oiling system: Automatic
Chain brake: Electric
Weight w/o battery: 2.74kg

View user manual


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

Questions and answers

3 votes
I bought a battery operated hedge clippers from you a while back really pleased with them.Would the battery for my clippers be ok for the chain saw
Yes you can use the Greenworks 40V battery in all Greenworks tools.
By Trade Tested on May 04 2020
1 vote
Hi there, could you please how long will the battery last when using the chainsaw
It's difficult to put an accurate number on it as it will vary depending on how much energy is required (eg. cutting scrub vs cutting a larger log), however 25 minutes is an approximate guide.
By Trade Tested on May 09 2022
0 votes
Does the 6Ahr battery fit this chainsaw?
Yes, all batteries that are part of the 40V range will fit these units.
By Trade Tested on February 07 2023
1 vote
I've got the older model of this chainsaw and I see the battery shape has changed, will my old version of the battery still fit in this newer model (old ones are still g-max 40v, it's just the shape I'm thinking about).
Yes they are still compatible, the battery connection didn't change, just superficial design elements.
By Trade Tested on February 17 2022
1 vote
Does this have brush less version?
No not at this stage.
By Trade Tested on December 21 2021
0 votes
Can you use a 4.0Ah battery on this tool?
Yes you can provided it is the 40V battery.
By Trade Tested on April 08 2022
1 vote
How long to charge battery and can batteries be overcharged?
This will take approx 60 mins to charge, as long as the charger is working correctly then no, although we recommend unplugging the charger and removing battery is they are not being used for an extended period.
By Trade Tested on September 05 2019
1 vote
Can you please tell me the weight of chainsaw and battery together?
About 4kg.
By Trade Tested on July 29 2019
0 votes
What is the chain speed for this brushed unit please?
It's 4.3 m/s.
By Trade Tested on December 09 2020
0 votes
does the battery come with the chainsaw?
Yes this kit comes with a 2.0Ah battery.
By Trade Tested on September 08 2020
See more questions and answers (1)

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All reviews (133)

Read reviews that mention

  • little saw
  • little chainsaw
  • cutting up
  • petrol saw
  • cut through
  • pruning
  • cut up
  • stump
  • easily cut
  • battery last well

Does everything I need it to

Brian Manawatu
Great to grab and go.

I really love how easy this is to take with me on farm runs. Runs well and is perfect for tidying up the track and pruning low hangers.

RB Auckland

Shared from: Greenworks Chainsaw G-MAX 40V Li-Ion with 12" Bar Skin

Brilliant little chainsaw

Was sceptical when purchasing whether it could cope with what I needed it for, but has proven to be a brilliant little chainsaw. Had no problems cutting through what I needed it to. Much quieter than the petrol based ones.

Kieran Wellington

Shared from: Greenworks Chainsaw G-MAX 40V Li-Ion with 12" Bar Skin

Greenworx 12 inch chainsaw

Fab product used with greenworx polesaw and hedge trimmer, I am a garden contractor

Woolly Nightshade Ltd Northland

Shared from: Greenworks Chainsaw G-MAX 40V Li-Ion with 12" Bar Skin


Used it on my overgrown hedge worked very well cut through easily nice and light took me 3hours and still had plenty of power left in my battery.

Steve Auckland

Shared from: Greenworks Chainsaw G-MAX 40V Li-Ion with 12" Bar Skin

GreenWorks 12 inch chainsaw

I have a mid size petrol chain saw but I needed a smaller light weight lithium powered unit. This product is beautifully engineered and constructed. I am thrilled to bits with it.

Jim Eastern Southland
GreenWorks Chainsaw G-MAX 40V Li-Ion with 12" Bar

I'm very impressed with what this little saw can do - it has plenty of power and quickly got through a trailer-load of logs for firewood. Most of the logs were 10-20cm in diameter, but a few were up to 30cm, and they were not problem. The only reason I didn't give this a 5th star is that it doesn't have a chain brake, but the chain does stop quickly when you release the trigger, which is almost as good. I'm happy to recommend this saw.

Roly Northland

Shared from: Greenworks Chainsaw G-MAX 40V Li-Ion with 12" Bar Skin

Handy home chain saw

Light and easily handled. Powered through 8-10 cm tree effortlessly. Beats the heave ho of cranking up a petrol saw. Recommended.

NigMac Omori
Great little chain saw

Used for the first time in the weekend. Did an excellent job, making light work of over hanging branches, cutting with ease. Got excellent battery life and was very happy with its performance.

Mark Auckland

Shared from: Greenworks Chainsaw G-MAX 40V Li-Ion with 12" Bar Skin


Works great, but the bar is shorter than I would have liked.

GJ Auckland