40V Cordless 16" Brushless Chainsaw w/ 4.0 Ah Battery

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In stock
Cordless Brushless Chainsaw is rated 4.7 out of 5 by 69.
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  • Includes one 40V 4.0 Ah battery and charger
  • 3 Year Limited Tool & Battery Warranty

Perfect for yards up to 1/2 acre, Greenworks 40V tools are lightweight, start instantly, and require virtually no maintenance – no gas, no oil, no mess – but still deliver gas-like power.

  • Brushless motor for more torque, quiet operation, and longer life
  • 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
  • 16" bar and chain perfect for tackling the tough jobs
  • Automatic oiler applies oil to the bar and chain to ensure durability and extend the life of the chain
  • Electronic chain brake prevents from accidental kick-backs
  • Hassle free push button start
  • Includes one 40V 4.0 Ah battery and charger
  • 3 Year Limited Tool & Battery Warranty
Rated 5 out of 5 by from Exceptional run time I have had this chain saw for about 3 years with most of my use of it in the Spring, Summer and Fall. I am always amazed at the long run time I get from the saw. I am often able to buck much more of a tree than I predict. I find it easy to sharpen the chain and find any needed replacement parts online. It is comparable in weight to my old gas powered saw. The self oilier for the chain is great, but do take the time to clean out the housing over the chain from time to time to remove oil caked saw dust. If possible, used up all of the oil in the self oilier before storing it to prevent oil from leaking out when not in use.
Date published: 2018-08-20
Rated 5 out of 5 by from Cordless Chainsaw We have bought two....We have used the one for several years without a minutes complaint. The battery life is longer than mine some times... An easy to use tool for some many trimming, cutting....anything. It is a very safe saw with very little chance of kickback.. Keep the chain sharp and it will perform so excellent. I recommended a GreenWorks saw and my 81 year old sister has one that she can "hardly" live without. I have two gas saws one Husky 2100 xp and a Husky Rancher..and have cut thousands of cords of wood... But for ease and handiness this is the best. We have been sextons at a 15 acre cemetery for 30 years and this Greenworks tool is always nearby.
Date published: 2018-08-10
Rated 5 out of 5 by from Works amazingly well! I have used my chainsaw on many different occasions, owning it for about a year now. It has never failed to impress me. The battery life is so much longer than you would expect. Only once or twice have I managed to outlast the charge. :) I've cut up downed trees following a tornador and done general limb/branch cleanup around my property. It exceeds my expectations every time I use it. It is easy to use and any needed maintenance is simple. I love that I can share the batteries among the Greenworks pole saw, trimmer and hedge clipper that I also purchased. What a great product!
Date published: 2018-06-22
Rated 1 out of 5 by from Only in cold climates I've had this for about ten months and was impressed with it in the winter weather, but once temperatures got above 70 it is too prone to overheating. Past 85 and I'd consider the saw near useless as you can only make a couple cuts a day before overheating. Perhaps this is because I'm cutting larger logs than most, some 14", but it's a 16" bar and overheating after four cuts, and not cooling down enough to use again until the next day is just unacceptable in my book. That's with multiple batteries and letting it rest in the shade for two hours, it can't run more than a few seconds before overheating again.
Date published: 2020-07-30
Rated 5 out of 5 by from Excellent saw I purchased three of these G-Max 40V saws several years ago to thin and prune juniper and pine on grazing land. Was not sure if the battery saws would hold up to the demands of ranch work, but hold up they did and without even one major problem with any of the saws over hundreds of hours of use. When I first got these saws one old boy I had working for me scoffed at it, but now these are the go to saw for any job within it's capacity. All but the large gas saws are collecting a lot of dust these days. Because of their light weight and ease of use, these saws became invaluable in steep canyons and rocky terrain. Three batteries per saw, a jug of oil and a file would keep my crew of three workers going all day.
Date published: 2018-11-12
Rated 5 out of 5 by from My second Greenworks saw I bought this saw to have a lighter saw for use at home. I have a Greenworks 80V saw for farm use some distance away. Both saws are well worth the money. I don't use chainsaws enough to be comfortable with them. An electric saw is simpler to operate and seems to me to be safer--less noise, no smoke, and you don't start the saw until you have it in position to make the cut. The batteries have all the capacity that I need and more. If you plan on doing extended saw work you may want a second battery.
Date published: 2018-10-20
Rated 5 out of 5 by from It has passed the test of time I purchased this chainsaw several years ago ( when it was first available ). I use it all around our 35 acre property for trimming, pruning, removal of dead falls and even some firewood cutting. I was skeptical at first of a cordless saw but have become a true believer. It is lightweight, has excellent power and the battery is more than adequate for my needs. All in all the saw has surpassed my expectations and over the past several years has held up well, is durable and has passed the test of time.
Date published: 2018-08-13
Rated 5 out of 5 by from My first chain saw Received this saw as an early gift after wanting one for years. It was very easy to learn on. If you're like me and this is your first saw purchase, read the manual, wear safety gear, and it'll be good to you. I seem to wear out before the batteries do, so far. If you've read other reviews, you'll recall that the bar and chain oil does leak a little, so keep it stored appropriately to avoid staining your floor. (Only complaint is that I thought it was to include a carrying case. Mine did not, so I've been using a garbage bag instead.)
Date published: 2018-12-06
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bought the saw with 40/4.0ah last fall use twice a month for small .check charge ,went to use it today ran great for about half an hour then stopped ,the battery charge check light wouldn't light up and then it ran again for a minute what happened ?

Asked by: randyh
Hello randyh, Low voltage charging: If the battery has been stored with little to no charge for a long period of time, the charger will go into recovery mode, which will take approximately 20 hrs. to fully charge the battery. This will enhance the life of the battery. Once it is fully charged, the next charge will return to standard charging. If you are still experiencing an issue please contact us at 1-888-909-6757 (1-888-90WORKS) or by email on info@greenworkstools.com.
Answered by: GW Customer Agent
Date published: 2020-09-09

I am interested in the 40V 16" Chainsaw, 4Ah USB Battery&Charger. It will be stored with my emergency supplies. When it comes to recharging the battery, I have a solar generator that puts out 500W/120V, but I don't see any spec's on the charger.

Asked by: RichardS
Hello Richard S, It has an input voltage of 100-120V @ 1.5A (total input wattage 150W) It has an output voltage of 40V @ 2A (Total output wattage 80W) 500W will be fine however it will need to be pure sine wave. Hope this information helpful.
Answered by: GW Customer Agent
Date published: 2020-09-01

I had the saw on a workbench for several weeks. The bar oil leaked out all over the bench. Is there a way to store the saw without emptying the oil reservoir or is that the answer?

Asked by: GlenInMalta
Hello GlenInMalta, To store the unit for long period of time we do recommend that the oil reservoir be emptied. You can also loosen the cap of the oil reservoir to alleviate any built up pressure. However, the best method to ensure no leaking occurs is to empty the oil reservoir.
Answered by: GWT Customer Support
Date published: 2020-07-14

why a 4.0 and a 2.5 battery?

Asked by: dmed
Hello dmed, For additional runtime it does come with two battery options.
Answered by: GWT Customer Support
Date published: 2020-07-14

Where can I get a replacement chain?

Asked by: GlenInMalta
Hello GlenInMalta, To determine the right chain we would advised looking at the specs of the chain. Chainsaw model (20312) uses a 16" Oregon brand chain. Here are the specs for the chain:Links: 56 Gauge: 0.043" Pitch" 3/8" This is an Oregon brand chain and can be purchased at a hardware store, you can also visit https://www.oregonproducts.com/countrySelectorPage for more information on the chain or you can avoid the hassle of trying to locate the chain and order it directly from us over the phone at 1-888-909-6757 (1-888-90WORKS). We will be happy to help.
Answered by: GW Customer Agent
Date published: 2020-07-10

Could you use a 60 volt Greenworks battery in this unit and could this 40 volt battery that comes with it be used in my 60V leaf blower?  I also want to purchase a Greenworks mower and trimmer. What is the best grouping?Can the batteries be interchanged?

Asked by: Leo365
Hello Leo525, The Greenworks 60V units are not interchangeable within the G-Max 40V line. GreenWorks manufactures a range of voltage platforms from 24V - 80V, essentially, the higher the voltage the more power and torque a unit will provide so the choice of voltage can depend on the conditions of your property and user preference. For more information, please feel free to contact us at 1-888-909-6757 or by email at info@greenworkstools.com.
Answered by: GW Customer Agent
Date published: 2020-07-09

Greenworks 40-Volt Max Lithium Ion 16-in Cordless Electric Chainsaw what size and weight package is this shipped in?

Asked by: StanD
Hello StanD, The shipping weight is approximately 12 lbs.
Answered by: GWT Customer Support
Date published: 2020-07-01

My chain is loose and I can’t seem to tighten it. What to do. Do I need a new chain?

Asked by: Katie 175
Hello Katie 175, Yes, a replacement chain may be required if you are unable to tension it. Here's a video guide on how to replace the bar/chain. https://www.youtube.com/watch?v=al2SoV1QqnI
Answered by: GreenWorks Support
Date published: 2020-06-22
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Bar Length:
16 Inch
Bucking Spikes:
Chain Brake:
Auto Oiler:
Oil Tank:
Chain Tensioning:
Tool Warranty:
2 Year
Battery Warranty:
3 year
Battery Capacity:
  • (1) 40V Cordless 16" Brushless Chainsaw
  • (1) Scabbard
  • (1) 4.0 Ah Battery
  • (1) Battery Charger
  • (1) Owner's Manual
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