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Model # RY40510B

Internet # 203800540

12 in. 40-Volt Lithium-Ion Electric Cordless Chainsaw

This item has been discontinued.
The Home Depot no longer carries this specific product.

$169.00 /each




Model # RY40510B

Internet # 203800540

The Ryobi 40-Volt Lithium-Ion Cordless Chainsaw steps up your power and still gives you the convenience of cordless. Powered a high-capacity lithium-ion battery, this cordless chainsaw runs long and hard, and the battery works with all other Ryobi 40-Volt tools. Features like the 12 in. bar and chain, automatic oiler and tool-less chain tensioner make this the perfect saw for pruning, limbing and other quick clean-up jobs around the home. Now available with a 5-year warranty, you’ll be glad to have this convenient cordless saw in your tool collection.

California residents: see  Proposition 65 information

  • Works with all Ryobi 40-Volt lithium-ion tools and batteries
  • 40-Volt lithium-ion compact battery and 90 min quick charger included
  • Ideal quick clean up and limbing
  • 12 in. bar and chain
  • 5-year limited warranty
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Bar Length (in.) 
Chain size 
12 in. 
Maximum cut diameter (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 
Antivibration handle 
Batteries Included 
Battery Power Type 
Lithium Ion 
Battery Size 
Lithium Ion 
Case Included 
Chain brake 
Chain tension adjustment 
Chainsaw Type 
Hand Chainsaw 
Charger Included 
Number of Batteries Required 
Product Weight (lb.) 
12.800 lb 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
1-UL Listed 
Manufacturer Warranty 
5 Year Limited Warranty 


Rated 4.4 out of 5 by 125 reviewers.
Rated 5.0 out of 5.0 by Lithium battery-operated chainsaw The Ryobi lithium battery chain saw took down this tree that had been laying over the fence line for a long time. It was a breeze! We have a gas-operated chainsaw - a lot of trouble to get out and ready it for one tree; we didn't have an electrical cord long enough to use our corded chain saw. This Ryobi was perfect for the job. It was easy to operate and light enough for the woman of the house to use, We would definitely recommend this product! June 9, 2015
Rated 5.0 out of 5.0 by Outstanding Little chainsaw Great little chainsaw that ran for hours. 4 trees fell down from a bad storm and it cut them all very smoothly and efficiently. It is slower and less powerful then a gas chainsaw on the larger stuff but the end result is the same. It is also very light and runs as easy as you pull the trigger. No pulling the cord repeatedly and messing with the choke to get it started like a gas saw. July 2, 2014
Rated 4.0 out of 5.0 by Handy cordless chainsaw ! The chainsaw has good power for a battery powered unit. The chain speed is definitely slower than a gas powered saw, so the cutting action is a bit "rougher" than the smooth action you get with a faster gas powered saw. That said, the saw is very handy and has the power to cut most reasonable size trees and logs you run across in the woods. It is handy to use it on your ATV as you do not have to mess with the gas/oil mix if you want to grab it in case you run across a tree that has fallen across your ATV trail. My wife likes to use it because it is lighter than the gas powered saw. Also, of course there are no issues with the pull starting effort. The battery runs about 45 minutes if used continuously. There is a larger battery than can be purchased. As others have mentioned, it does leak and use a lot of chain oil. This is a great saw for small jobs and as a backup saw. October 20, 2014
Rated 5.0 out of 5.0 by A great tool for trimming limbs and removing small trees I purchased this cordless saw because of all the reports from my neighbors and friends of gas chain saws being damaged by Ethanol in the gasoline. I still wanted the ability to trim limbs – even when there is no local power due to a storm. So the battery was the way to go – I just need to establish a routine to insure it is always charged and ready to go. The saw is like any power tool. You have to let it cut at its speed and ability. This saw is not as powerful as a gas saw. It will cut – you just have to get used to the slower speed and higher torque. If you push the saw to hard it will just shorten the battery life and not cut any faster. My first use of this saw was to cut up a small tree that had fallen on my property due to a storm. The trunk diameter ranged from 4 inches at the top to 14 inches at the base. I made 17 cuts on the first charge. As I progressed to the larger diameter the saw definitely uses up the battery more quickly. I removed the safety tip to make the 14" cuts. No problem with kickback due to the slower speed. The ability to tighten the chain without tools is a really great feature Very impressed with the saw. The automatic oiler works well and the top mounted battery provides a good weight to balance ratio when cutting. If you space time between each cut the battery seems to recover slightly and last longer. You will definitely want to learn how to sharpen the blade as a dull blade will just eat up the battery. I am planning on getting a second battery. I may buy another 40V Ryobi tool to get two batteries as purchasing a replacement battery alone is quite expensive. May 21, 2013
Rated 5.0 out of 5.0 by More than expected... I have been using Ryobi products for over 11 years they offer great value for the pricing. I was looking for a nice 2 stroke chainsaw when I came accross these 40volt versions. This is a perfect balance of power and versatility for my uses. I can pack it in the RV and cut up firewood to be hauled back to the campsite. Also works extremely well around the house. I have really pushed mine further than I was expecting too. I decided to take down the 5 25ft Ficus trees in my back yard. The Ryobi powered through. The original battery that came with the chainsaw was the OP4015 40volt. The OP4015 battery pack is what I expected as far as run time. With the OP4015 I would get 1 hour runtime of bucking 3" diameter branches at a good pace. I was satisfied with that especially with a 90min charge time. When I decided to take on cutting down the ficus trees I purchased the 40volt trimmer because it was only 40 bucks more than purchasing a second battery. Well little did I know the trimmer came with the new OP4026 "high capacity" battery pack. The battery pack uses the same charger (OP400) and lasts a very long time. I now own two OP4026 high capacity batteries and I run out of energy and daylight before I run out of power. The new battery packs put this 40volt series over the top. I'm go to pick up the lawn mower to complete the set and I am extremely satisfied with the product. March 7, 2013
Rated 5.0 out of 5.0 by A Little Workhorse This Ryobi chainsaw exceeded my expectations. This is a big project Summer at our house. The list is endless (you may hear more from me!) One of my personal priorities was to remove two 50+ year old cedar Arborvitae blocking off my favorite old Rhododendron. It had grown to about 12-16 feet and filling a space about 6 feet in diameter. I have another corded chainsaw which works "okay..." so honestly I didn't really expect too much. I also have a Ryobi 18 volt pole chainsaw and and the new 40 volt hedge trimmer. I used these to trim my way into the trunk and top it before cutting the rest down. Once I had space to access my target work area I used the chainsaw to cut through the two 8 inch diameter. Here's what I like: * Easy to use bar adjustment for removal or tightening- turn a couple of knobs and you're good. * Batteries interchangeable with other Ryobi 40 volt tools (cool battery meter show exactly how much charge is left) * Battery life is great- I didn't have to recharge. Recharging takes 90 minutes. * Plenty of torque for cutting (I cut an 8-10 inch trunk with no problem) * Light weight and simple to use I really can't think of any serious "Cons". Based on my experience here, I wouldn't hesitate to try another Ryobi cordless product! July 22, 2013
Rated 5.0 out of 5.0 by Great for small stuff! Good battery life, quick recharge too. Worked just fine for cutting 2-3" limbs and old shrub growth. It's not like a gas saw, but it doesn't need to be for this kind of cutting. I'm a 75 year old woman and can handle it with ease. April 21, 2015
Rated 5.0 out of 5.0 by Good little saw for small trees and pruning large branches I am a believer in the Ryobi 40 volt outdoor power tools and this saw is no exception. I have no doubts that it will cut through 8" branches or trees, but so far I have only experienced 4" to 5" and that was quick and no bogging down. The chain tensioning is made simple and can be done in just seconds. It is just a great little chain saw for light duty around the yard. June 9, 2013
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