[This review was collected as part of a promotion.] The saw itself is phenomenal. It has lots of torque and cuts through wood like it was butter. I cut down an 20” elm tree and it was faster and easier than my rancher 450.
However, under heavy cutting it eats through batteries like candy at Halloween. I think my shortest battery was 10 minutes.
I would buy it again knowing for thick logs I still need to have my gas saw handy.
Definitely not as good as the smaller 18 inch 80 V
on December 11, 2025
Posted by: Dgv11
[This review was collected as part of a promotion.] I love greenworks tools and batteries own about 20 or more including other versions of the chainsaw, such as the 18 inch 80 V, and the 24 V 12 inch. Unfortunately, the 20 inch saw is completely unacceptable, and simply does not operate properly with the typical 80 V batteries. First, it has an electronics added to it that no other saw has. This operates essentially as a governor constantly turning off your saw when it feels like the saw is working too hard. You then have to press the button restart it to continue cutting. This is not an issue with the 18” 80 V saw which has no such button and does not cut out. In addition, the 3.4 kW motor actually generates less usable power in practice than the 2.4 or 2.8kw? 18 inch saw it may be that the battery is underpowered for the higher motor but it simply just provides less performance on the 20 inch saw than the 18 inch saw so much less that it’s irritating and you can’t stand using it when you’ve used the other saw, therefore had to send this back. I’ve asked that they talked to the engineers to see if this is an undersized battery problem or a defective electronics problem with the new switch they added. Either way I don’t think anyone should buy the saw over the 18 inch you’re just paying more to get less and it doesn’t operate safely since it cuts out in the middle of a tree.
I will update my review if I hear from the engineers, and hopefully they will redesign the saw or identify a solution to make the saw work properly.
Response from greenworkstools.comBy Greenworks, December 11, 2025
Hello Dgv11. Thank you for sharing your detailed feedback on the 20" 80V chainsaw. We appreciate your long-term use of Greenworks tools and batteries, and your insights are valuable. The 20" 80V model includes electronic protection designed to prevent overload and protect both the motor and battery. We understand that the frequent shutdowns requiring a manual restart can be frustrating, especially compared to the 18" 80V saw, which operates without this feature. Your observations about cutting performance and battery compatibility are important, and we recognize that the 20" saw may feel less powerful in certain conditions despite the higher motor rating. Your feedback has been shared with our engineering team for further review. If you ever have specific questions or concerns about our products, contact Greenworks via Live chat on our website (www.greenworkstools.com), call us at 1-888-909-6757 (1-888-90WORKS) or refer to the FAQ ask section of the tool or ask us a question, anytime.
[This review was collected as part of a promotion.] great little chainsaw. I had fun using it, as it was my first experience with using a chainsaw. Loved how light and easy to manage it was. Really felt powerful and took down a full size tree in my back yard. Really impressed with the performance.
[This review was collected as part of a promotion.] I purchased the 80V 18" chainsaw w the 4Ahr battery and charger. I am pleased with the saw's performance. It is powerful, easily cutting logs and stumps that are 12" to 15" in diameter, both soft and hardwood. The bar adjuster is easy to use, and to keep proper chain tension. I've noticed reviewers who don't like the (heavy) weight of the saw with the 4 Ahr battery. I find the weight to be reasonable and to provide more stability in the cut (a point for safety.) The saw is loud enough that I use ear cups in addition to eye protection. I would advise a spare battery for large jobs; but batteries charge relatively quickly (the charger has a cooling fan--good idea.) All in all, I'm very pleased with the saw.
[This review was collected as part of a promotion.] Just got this a few weeks ago. Took a minute to get the right tension and oil was a little slow at first until i took the blade off and just kinda cleared the space a bit. After yhat, I've been impressed. Good power and cuts 15-18 inch logs without effort. About 10-12 seconds.