18V ONE+™ 12" BRUSHLESS Chain Saw

Model: #P548A

4.8 | 123 Reviews
  RYOBI is raising the bar with the RYOBI 18V ONE+™ 12" Brushless Chain Saw. This chain saw will make light work of thick and unsightly branches and limbs around your house with it's 12" bar and chain. Features like the tool-less chain tensioning and the automatic chain oilier make operation and maintenance easier then ever. The integrated brushless motor delivers superior power, performance and run time. The RYOBI ONE+ 18V Brushless Chain Saw redefines the cordless chain saw category by delivering power an performance you'd expect from higher voltage cordless tools but with a compact and lightweight design. There has never been a better time to start or upgrade your RYOBI ONE+ collection!


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This product is covered by a 3-year limited warranty.

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  • Bar & Chain Size: 12"
  • Chain Oiler: Automatic
  • Throttle: Variable Speed
  • Chain Tensioning: Tool-less
  • Motor: Brushless
  • Chain Pitch: 3/8 in.
  • Chain Gauge: .043 in.
  • Drive Links: 45
  • Weight: 6.9 lbs.
  • Warranty: 3 Year-limited


  • 18V ONE+™ 12" Chain Saw
  • Scabbard
  • Hex Key
  • Operator's Manual


18V ONE+™ 12" BRUSHLESS Chain Saw
18V ONE+™ 12" BRUSHLESS Chain Saw is rated 4.8 out of 5 by 123.
Rated 4 out of 5 by from Specific Tool - Small Jobs Bought this about a month ago, mainly for trimming small branches and using on small projects in my garage woodshop. Saves me the issue of firing up my 18" Stihl and stinking up the garage. Do not expect big tool performance. It is good for small jobs, branches 1-2 inch max and trimming 4" log blocks, prior to putting on a lathe. Battery drain is significant and you should have at least 1 charged spare. The manual chain tightening feature is a great convenience, but make sure you crank down on the locking mechanism. The locking mechanism tends to rub against tree branch while cutting and can loosen up, causing chain to come off bar.
Date published: 2020-02-15
Rated 5 out of 5 by from I had a garage full of gas power tools that I hadn't used in 10 years. After plenty of research I determined they simply were worth fixing when I compared the cost of repair to this awesome one+ lineup. I already had a 3ah battery from a circular saw so I bought the hedge trimmer with battery and charger and the string trimmer with battery and charger. I also now have the brush cutter, pruner and articulating hedge trimmer expand it attachments as well as the 410 cfm blower(tool only), 22" hedge trimmer and 2-gallon garden sprayer. These new battery operated tools are so much better than dealing with 2 cycle BS. Well done Ryobi!
Date published: 2020-07-23
Rated 5 out of 5 by from Great product! I have used this several times in the past month, and am very impressed! NoteD it does not come with the bar oil so you’ll need to buy that separate! The chainsaw is light enough for a guy to hold overhead with 1 hand for cutting limbs. And cuts through 10-12” rounds with no problem so far. The only issue I’ve found is I think when the chain gets pinch, it acts like it overheats like other Ryobi tools for a few minutes. But I learned if I remove the battery and put the battery right back in then it will continue working and had nothing to do with my battery being low like I’d assumed. The 4aH battery lasts at least 45 minutes of continuous cutting!
Date published: 2021-02-01
Rated 5 out of 5 by from Nice little saw! I got one of these for my birthday a couple of months ago. Really nice little saw. Light, easy to handle, cuts like buttah. 5Ah battery cut down 6 x 6-8" spruce, and bucked them all into firewood length pieces on one battery. Couple of small complaints - the chain tensioner lock knob is easy to bump so the chain tension lets off, and the oiler leaks a bit when sitting. Neither are really worth complaining about. Keep your eye on the tensioner, and store it on a piece of cardboard to soak up the oil. Really nice to carry on the quad for clearing deadfall. I'd buy another one in a hot second.
Date published: 2020-07-10
Rated 5 out of 5 by from Effective and efficient I had a tree with some stump rot threatening to fall on the car port -- probably 24" circumference, 14"-16" diameter. Instead of paying someone to do it, I got this chain saw. The various pruning and limb cuts went really smoothly and I trimmed away the parts that would be a liability before falling the whole tree. I probably would've done better with the next size up, but this chain saw did the job. One thing that takes a little getting used to with the electric saw is knowing the battery life. I thought I ran it down a couple of times, but really I just needed to reset the tension and clear out the inside. For those of you who may not know, you need to also get the oil. Not included.
Date published: 2020-11-11
Rated 5 out of 5 by from An Absolute Marvel The Poulan died. What to do. Already owned several 18V One+ tools. Ordered this chain saw and discovered FREEDOM! Perhaps a third of the weight, no more mixing and hauling gas. Read the directions, added the chain bar oil and off to work we went. For me this 12" bar was all I needed. It powered through downed cedar trees perhaps 12"+ in diameter. What you need to do is have on had a couple of the Ryobi larger capacity batteries. I ended up only using one with two trees downed, several lower branches trimmed on standing trees, and that one battery was still running. Now I am excited about the pole saw's arrival! Yes, excited about tools coming in so I can do chores that were being put off. Um, did I just say I could do chores that I had put off? No worries. My wife is not proofreading my review
Date published: 2020-04-24
Rated 5 out of 5 by from Awesome tool ! I have used many different gas powered chainsaws over the years. This 12 in electric is the best I have ever used. It is lightweight, easy-to-use and the automatic Oiler works very well. I would highly recommend this to anyone looking to do pruning around the yard or light tree work.
Date published: 2019-12-11
Rated 4 out of 5 by from Grips well! After a few weeks of receiving the bundle I got including this chainsaw, I finally put it to use! Never used a chain saw before so wasn’t really sure on what to expect. I understand that you cant compare the performance of gas powered/power chord tools to battery operated tools, but the convenience of not having to deal with gas and power chords is all worth it. I’m really happy with my purchase and cant wait till my next project!
Date published: 2020-07-13
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