40V HP Brushless 18" Chainsaw with 5.0 Ah Battery and Charger

Model: #RY40580

4.8 | 173 Reviews
  • 40V HP Technology Delivers 75% More Power Compared to RY40570
  • Mechanical Chain Break for Kickback Protection
  • Side Access Chain Tensioning and On-Board Tool Storage for Easy Adjustments
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More Power. Longer Runtime. Longer Motor Life.


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*Tool Warranty

All RYOBI 40V tools are covered by a 5-year limited warranty.

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* Battery Warranty

All RYOBI batteries are covered by a 3-year warranty.

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Bar Length/Chain Size
13.2 lbs.


40V 5.0 Ah Battery
Chain Oiler
Replacement Chain
Y62 .050


5 year tool warranty and 3 year battery warranty



40V HP Brushless 18" Chainsaw with 5.0 Ah Battery and Charger
40V HP BRUSHLESS 18" CHAINSAW KIT is rated 4.8 out of 5 by 173.
Rated 5 out of 5 by from love it for light duty work Wow. Thought this worked better than my last gas-powered saw. Was really impressed. Needs bar oil but used motor oil without issue.
Date published: 2022-09-26
Rated 5 out of 5 by from Easy to learn/startup This is a great chainsaw for any type of tree, it was my first one I have owned and it was very self explanatory with many safety features to make it an anxiety free learning experience for beginners. Hopefully I will have for many years to come!
Date published: 2022-09-23
Rated 5 out of 5 by from Great Saw! Exactly the saw I needed. The occasional tree that falls in my yard is no match for this product. Well balanced and easily held by someone over 65.
Date published: 2022-09-22
Rated 5 out of 5 by from WORKS GREAT! I was really surprised by how much torque it had. I'm so happy not to have to mess with another 2 stroke carburetor.
Date published: 2022-09-16
Rated 5 out of 5 by from Great tool! Powerful! So much better than gas powered saws! No hassle starting and running.
Date published: 2022-09-08
Rated 3 out of 5 by from Battery Life I bought the 18" chainsaw with battery, charger, etc. I cut three blocks from an approximately 16" log. I cut about 1/2 - 3/4 through the next cut and my battery died. Got another battery. Same thing. My first disappointment with Ryobi.
Date published: 2022-09-06
Rated 4 out of 5 by from Does the job! I like the 18 in chainsaw and I also have a 14 inch chainsaw. I like the both and they do a great job. The only draw back is the 40 volt 5ah and 4ah don't last long and heat up. The 18 inch saw with 5ah battery will last about 3-4 cuts in a 12 inch oak log. I have a very large collection of Ryobi tools and products on the past 30 years and they are still going.
Date published: 2022-08-25
Rated 3 out of 5 by from Got the job done, but..... Bought as a replacement for a powered chainsaw that would not start. First time, worked just fine until... the chain skipped off the bar. Had to reinstall it, and I had to file one of the guides to get it into the grove. Over all, a lot better than a heavy gas powered saw, at least for the jobs I'm taking on. But stop and adjust the chain tension frequently.
Date published: 2022-08-21
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