Model#: GWKN20312

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Greenworks 20312 40V G-MAX Cordless Lithium-Ion DigiPro Brushless 16 in. Chainsaw Kit

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  • Due to federal regulations, this product can only be shipped within the continental US. Express delivery not available.

Product Overview


Important Notice: Lithium-Ion Item - Express Delivery option not available due to transportation regulations.
Become more efficient when working in your yard with the Greenworks 40V G-Max Lithium-Ion DigiPro Lawn Tool Series, the gas alternative solution you have been waiting on. The DigiPro has a brushless motor for more torque and superior cutting performance and also has an interchangeable battery platform that offer all the tools you need to complete your yard work without sacrificing performance or power.
Greenworks 40V G-Max Cordless Lithium-Ion 16 in. DigiPro Chainsaw delivers the power and high performance you need to get your trimming done without the hassle of extension cords or heavy gas powered motors. Featuring a 16 in. steel bar and chain, automatic oiler, tool-less chain tensioning adjustment and a wrap around handle, this chainsaw was designed to make cutting a simple task. The translucent oil tank makes it easy to have a clear view of oil capacity to ensure the highest performance and durability. Whether it is pruning tree limbs or cutting down logs for your fireplace, this is the perfect chainsaw to have around the house to take care of all your trimming needs. Well balanced, clean and easy to transport, this Lithium-Ion battery chainsaw with the brushless motor is a great step forward as an alternative to gas powered chainsaws. The large hand guard protection and safety switch button offers an enhanced precaution feature for any accidental start ups and the electric start feature makes it easy-to-use without the hard-to-manage gas pull start.
  • Brushless Motor delivers up to 30% more torque for superior cutting performance
  • High performance 40V G-Max Lithium-Ion battery delivers fade-free power with no memory loss after charging
  • Robust 16 in. steel chain and bar with tool-less chain tensioning offers ease of use while delivering the highest cutting performance
  • Rear handle design provides excellent control, especially during overhead use
  • 3/8 in. chain pitch delivers the right amount of capabilities to get those limbs trimmed and cut with minimal kickback
  • Over-molded handle for increased user comfort
  • Powerful enough to cut up to a cord of wood on a single charge
  • Note: 40V G-MAX and 40V Lithium-Ion Batteries are not cross compatible
  • 40V G-Max Cordless Lithium-Ion DigiPro Brushless 16 in. Chainsaw Kit - 20312
  • 40V G-MAX 4.0 Ah Lithium-Ion Battery
  • Charger
  • 16 in. Bar and Chain
  • Scabbard
  • Travel Bag
  • Owner's Manual


Series: G-MAX
Cordless: Yes
Bar Length: 16 in.
Batteries Included: 1
Battery Amp Hours: 4.0 Ah
Battery Type: Li-Ion
Chain Gauge: 0.050 in.
Chain Pitch: 3/8 in.
Voltage: 40V



4.6 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (8)
No, I would not recommend this to a friend (1)
Lightweight (6)
Yes, I would recommend this to a friend
gmax 16inch chainsaw
out does the oregan saw hands down would recomend to everyone
April 25, 2014
Yes, I would recommend this to a friend
great saw
what a great saw.. I have my doubts what about my first one.... but now I have thrillerI have my doubts what about my first 1 but now I have 3 of has a great deal power the 4 amp hour battery lasts about 30 to 40 minutes of cutting time... it does best in wood less than 12 is quiet, powerful, and very eas to use. .. with a 3 batteries you could cut a cord of wood easy... so quiet that you can cut wood early on a Sunday with your neighbor right next to your fence...impressive power and easily goes threw any kind of long as you keep it out of the dirt...every one needs a saw like this around the house and even the farm...with 3 batteries you can cut for over 2 hours... great for cutting camp wood and for cleaning up downed limbs without disturbing the neighborhood. ..well built well thought out...even the wife will enjoy using it ....
January 30, 2015
No More Gas
I bought this early in the spring and I am completely satisfied. I have used it to cut down 12 inch willows and even took it to the stumps. I have used this saw enough times to have to sharpen the chain twice and I love it! The chain adjuster is toolless. Big plus. Sooooo quiet and no gas and oil. No more pulling and jerking. I bought an extra battery and between the two batteries it lasts more than long enough for me. The really cool thing is when you are cutting the fallen tree and you have to stop to move branches around just let off the trigger and restart by pulling trigger. NO MORE PULLING!!!!!
September 10, 2016
Originally posted at Greenworks
Great little saw!
Received this for fathers day and am completely satisfied with it. Took it camping on a four day excursion and was completely satisfied with its performance and battery life. I have solar with an inverter on my trailer so I was not worried about charging. Turns out I did not have to charge it. It cut all the fire wood I needed and then some. I cut way more than I needed to see how long the battery would last. It lasted the whole trip and I did not charge it until I got home. I will be purchasing more tooling in the future as long as it all performs like this.
July 18, 2016
Originally posted at Greenworks
Love mine.
I have had this a year and it has come in real handy taking down some trees and cutting them up. I have used it on up to 10 inch trees.
July 18, 2016
Originally posted at Greenworks
Yes, I would recommend this to a friend
Great so far
Have only had a chance to use the saw once so far, but made about 30 cuts through around 6 inch diameter logs for firewood with ease and without exhausting the battery. Looks like a well made tool. Perhaps it's a little on the heavy side due to the large capacity battery, but certainly not unmanagable.
February 23, 2015
Yes, I would recommend this to a friend
Love this saw!!
I always had trouble keeping gas chain saws running. This is a great little saw for me. Just slip in the battery and go. I cut up a big pine tree that the power company cut down for me in just a little while. I am a 73 year old female living alone who likes to take care of things myself. So ladies if you need a good saw this is it. I also love the fact that you don't need tools for adjusting the chain.
May 13, 2015
Yes, I would recommend this to a friend
Cutt'en lil hammerknocker
I've been cutting fire wood, and clearing my properties for years, and I've never had a chainsaw I enjoy using as much as this 40 volt rig.
No fuss, no muss, just pop the battery in, check the chain tension, and go. I've dropped 23" sweet gum tree's with it, and sectioned it for splitting.
The oil reservoir is easy to monitor, the tension doesn't need tools to set, and I have yet to have a problem with this saw. I'm very pleased.
October 20, 2015
Yes, I would recommend this to a friend
Love IT!!!
I am a 59 year old woman and my husband has a heart condition that prevents him from attending to the outside chores on 23 acres. I can use this chainsaw comfortably and safely. I cannot handle a gas chainsaw, so this 40V chainsaw was the obvious choice. It cut large fallen trees easily and did everything I needed it to do.
June 18, 2016
Yes, I would recommend this to a friend
great purchase
This was a very useful purchase for so many reasons. It has proved to be an extremely useful and quality tool so far . I expect that too continue even after years of being worked hard and maintained accordingly.
August 18, 2016

Questions & Answers

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Browse 9 questions Browse 9 questions and 10 answers
Will the chain oiler work in cold weather?
Fred on Apr 3, 2015
BEST ANSWER: A chain oiler will work in cold weather.
How do I adjust the chain tension and how will I know if it is needed
slick on Jun 24, 2016
BEST ANSWER: There is a chain tension knob located on the side of the saw.
I can't get my battery to charge, so I can run my chain saw
Jean on May 20, 2016
BEST ANSWER: Please contact CPO customer care for more options. 866-577-0663
Would the charger for this chainsaw work in Europe where they have 220 V and 60Hz ?
moktar on Feb 14, 2016
BEST ANSWER: No, the Greenworks 20312 is part of the 110v system
Can I use a 12" or 14" bar on this unit?
JJ on Jun 7, 2015
BEST ANSWER: Only the 16" bar is recommended for this chainsaw.
what Oregon chainsaw blade for your 16" battery electric...will Oregon R56 work ?
James on Jan 31, 2015
BEST ANSWER: No, the R56 will not work. Here is the model number of the blade that will work fine on this Chainsaw: ORGN91PX057G.
Is the 40V digipro battery compatible with 40V digipro twin blade lawnmower, the 40V digipro 20 inch snow thrower, and the 40V digipro 18 inch chainsaw?
My next question is, is the 80V digipro chainsaw available in Canada ?
And do you ship to Canada ? ( British Columbia )
Thank you
Fred Dodich
Fred on Jan 9, 2015
BEST ANSWER: We do not ship to Canada,Please contact the Mfg @ 1-888-909-6757 to check on the 80V digipro.
Can you buy an extra batter
Dave on Jan 16, 2014
BEST ANSWER: Yes, the model number for the battery is 29472. Here is a link to our website:,default,pd.html?start=10&q=battery
how much does the saw with battery installed weigh?
eager beaver on Oct 30, 2013
BEST ANSWER: The saw with battery installed weights 17 pounds.


Greenworks Warranty

Double The Industry Standard

NEW GreenWorks products are protected against all defects under normal use for a period of (4) four years (90 days for commercial use) from the shipping date.

Reconditioned GreenWorks products are protected against all defects under normal use for a period of 30 Days from the shipping date.

GreenWorks can opt to repair, replace or issue a refund for products that are determined to be defective, or that have been damaged during shipping. Replacement of products or parts subject to normal wear and tear is the responsibility of the customer. If GreenWorks accepts a return under Warranty, you can return the defective or damaged product only after you call and receive a Return Authorization from GreenWorks. You also will receive a refund for your original shipping charges, and GreenWorks will arrange and pay for your return shipping charges. Batteries carry a one-year warranty against defects in workmanship and materials. Batteries must be charged in accordance with the operator's manuals directions and regulations in order to be valid.