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Internet # 317061072

Model # RY401180

Store SKU # 1006431849

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40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower with 6.0 Ah Battery and Charger

$399.00
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  • 40V HP Technology Delivers More Power Than a 150cc Gas Lawn Mower
  • Ideal for Mowing 1/2 Acre With up to 40 Min. Runtime
  • Over 85 RYOBI 40V Products – All Work With Any RYOBI 40V Battery
  • View More Details

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Product Details

About This Product

The RYOBI 40V HP Brushless 20" Self-Propelled Lawn Mower delivers more power than a 150cc gas mower, making it a true gas replacement. Ideal for up to 1/2 acre, this mower comes with an included 40V 6Ah lithium battery for up to 40 minutes of runtime. The brushless motor and advanced electronics automatically react to mowing conditions by increasing the blade speed to eliminate bogging down and powering through the toughest cut. Equipped with self-propelled rear wheel drive, this mower ensures an effortless, efficient mowing experience. For your utmost convenience, adjust the height of your cut with the 7-position single point height adjustment. When you are finished, easily fold the handles and store vertically for compact storage. Best of all, it is part of the RYOBI 40V system where any 40V battery works with any 40V product. This self-propelled mower is backed by the RYOBI 5-Year Manufacturer's Tool Warranty, 3-Year Manufacturer's Battery Warranty, and includes RY401018 40V HP Brushless 20" Self-Propelled Mower, OP40605 40V 6Ah Lithium Battery, OP408 40V Fast Charger, Grass Catcher Bag, Start Key, Mulch Plug, Side Discharge Chute, and Operator's Manuals.

Highlights

  • 40V HP technology delivers more power than a 150cc gas mower, making it a true gas replacement
  • Ideal for up to 1/2 acre with up to 40 minutes of runtime using included 40V 6Ah battery
  • Brushless motor and advanced electronics automatically react to mowing conditions by increasing the blade speed to eliminate bogging down and powering through the toughest cut
  • Self-propelled rear wheel drive for an effortless, efficient mowing experience
  • Experience gas performance with just the push of a button. No gas, no maintenance, no hassle.
  • Single-point height adjustment allows you to quickly select the perfect height for your lawn with 7 different positions (1.5 in.- 4 in.)
  • The pass through bag removal allows you to quickly empty the grass bag without spilling grass clippings
  • Folding handles easily collapse for compact, vertical storage even in tight places
  • Included 40V Fast Charger delivers 2X faster charging
  • Compatible with AC04029 20" Replacement Blade, AC20GB01 Replacement Grass Bag, AC04020FC Extra Capacity Grass Bag, ACMC02 Mower Cover, ACLS01 Lawn Striper
  • Part of the RYOBI 40V System - Any 40V Battery Works With Any 40V Product
  • 5-year manufacturer's tool warranty; 3-year manufacturer's battery warranty
  • Includes: RY401018 40V HP Brushless 20" Self-Propelled Mower, OP40605 40V 6Ah Lithium Battery, OP408 40V Fast Charger, Grass Catcher Bag, Start Key, Mulch Plug, Side Discharge Chute, and Operator's Manuals
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Product Information

Internet # 317061072

Model # RY401180

Store SKU # 1006431849

Specifications

Dimensions

Cutting Width (in.)

20 inches

Mower Deck Width (in.)

20 in

Details

Battery Amp Hours

6 Ah

Battery Run Time (min.)

40

Battery Voltage (V)

40V

Battery/Charger

(1) 6 Ah Battery & Charger Included

Charge Time (hours)

1.5

Charger Included

Charger Included

Cutting Height Options

7-position

Cutting Options

Bag, Mulch, Side-Discharge

Deck Material

Polymer Composite

Drive Type

Rear-wheel Drive

Features

Adjustable Cutting Height, Adjustable Speed, Bagger, Brushless Motor, Collapsible, Foldable handle, High Wheel, Mulching Lawn Mower, No Oil Change Required, Residential, Variable Speed

Included

Bagger, Battery(s), Charger, Wheels

Lawn Mower Type

Self-Propelled Lawn Mower

Maximum Cutting Height (in.)

4 in

Minimum Cutting Height (in.)

1.5 in

Mower Size Type

Standard

Number of Blades

1

Number of Total Batteries Included

1

Outdoor Power Combo

Single

Power Type

Battery

Recommended Terrain

Flat, Sloped

Returnable

90-Day

Size of Yard

1/4 - 1/2 Acre

Start Type

Push Button Start

Tools Included

No Additional Tool

Walk Behind Mower Type

Self Propelled

Warranty / Certifications

Manufacturer Warranty

5-Year Limited Tool Warranty, 3-Year Limited Battery Warranty

Questions & Answers

How to reduce the speed of lawn mower
ByOct 20, 2026
1 Answer | 
Answer This Question

Hello, Rick bode - Slide the cruise control slider on the handle to the far left for minimum speed. We recommend setting the cruise control before engaging the blade; if the mower is moving faster than your walking pace, release the self-propel levers and bail, adjust the cruise setting, then resume. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI 40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower (Tool Only) (RY401018BTL).

By|Oct 22, 2026


    The self-propelling function has suddenly stopped working on our 21" 40 volt lawn mower. Would you please offer trouble shooting options? Thanks!
    ByOct 7, 2026
    1 Answer | 
    Answer This Question

    Hello, Sharlene - Thank you for the question. If you would, please contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI 40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower with 6.0 Ah Battery and Charger (RY401180).

    By|Oct 12, 2026


      There are no parts replacement for my RYOBI 40V HP Brushless 20 in. Cordless Electric (RY401180) the part service website does not recognize the Model number. My skirt guard broke too and needs a new one.
      BySep 15, 2026
      1 Answer | 
      Answer This Question

      Hello, Kimmm - To search for parts on the parts service site, you will need to use the model number on the mower itself. In your case, that model number is RY401018. You can also get assistance with replacement parts by contacting our customer service department. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI 40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower with 6.0 Ah Battery and Charger (RY401180).

      By|Sep 17, 2026


        My mower is cutting 1/4" different from left side to right side. Is there an adjustment that can be made to make the cut even? Weird cutting pattern in my lawn is embarrassing
        ByAug 22, 2026
        1 Answer | 
        Answer This Question

        Hello, Larlar - We recommend setting the cutting height properly using the mower’s height adjustment lever. To raise the blade height, move the lever toward the back of the mower; to lower it, move the lever toward the front. Uneven cutting is often due to a rough lawn or an incorrect height setting; adjusting the cutting height can correct it. We also recommend inspecting the blade and replacing it if it is damaged, unbalanced, or unevenly worn, as that can contribute to uneven cutting. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI 40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower (Tool Only) (RY401018BTL).

        By|Aug 25, 2026


          Where can I order a battery cover replacement for this lawn mower ?
          ByAug 20, 2026
          1 Answer | 
          Answer This Question

          Hello, Riggs78 - Available replacement parts can be purchased at https://ryobipower.ordertree.com/. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI 40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower (Tool Only) (RY401018BTL).

          By|Aug 24, 2026


            What is the size of the rear skirt guard for a RY40108 electric mowe
            ByAug 10, 2026
            1 Answer | 
            Answer This Question

            Hello, Nickgia - The trailing skirt guard is about 16-1/4" wide, 5" tall, and 5/64" thick. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI 40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower with 6.0 Ah Battery and Charger (RY401180).

            By|Aug 12, 2026


              The mower will not bag the grass. We have done all the troubleshooting recommended. We are at our wits end. Why will it not bag the grass??
              ByAug 9, 2026
              1 Answer | 
              Answer This Question

              Hello, Jones - If you want to bag, make sure that the mulching plug is not installed. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI 40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower with 6.0 Ah Battery and Charger (RY401180).

              By|Aug 12, 2026


                Did not have owner manual in box, can I print one online
                ByJul 25, 2026
                1 Answer | 
                Answer This Question

                Hello, Carter49 - Yes, you can find a manual here: https://556aa8d9de68ea9c4f29-0a8acad11a4df5016d26cc39a7429843.ssl.cf1.rackcdn.com/2/RY401018VNM_108674001_762_trilingual_01.pdf. If you need further support, then feel free to ask another question. You can also contact us by phone at 1.800.525.2579, Monday - Friday from 9am to 6pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI 40V HP Brushless 20 in. Cordless Electric Battery Walk Behind Self-Propelled Lawn Mower with 6.0 Ah Battery and Charger (RY401180).

                By|Jul 27, 2026


                  Viewing 1-8 of 499

                  Customer Reviews

                  4.4 out of 5

                  • 4.4 out of 5,055 reviews
                  • 83% recommend this product
                  Filter by:
                  Showing 1-10 of 5,055 reviews
                  Great lawn mower
                  I used to have the 11A 13" wired lawn mower. But dealing with the wire was annoying. I have about 4 000 square feet of grass with a couple trees. The power seems as good as the wired one. Once done, I still have about 60% of battery left (it’s the 6Ah which came with the lawn mower) and thr propulsion works great. It’s a bit heavy to turn otherwise it works fine. I usually mulch and the cuts are perfect.
                  by
                  • Verified Purchase
                  • Recommended
                  Poor Quality Lawnmower
                  Into year 2 of the 5 year warranty on my lawnmower, the battery cover hinges broke and the handle lock levers would unlock randomly while mowing the lawn. Ryobi initially refused to honour their warranty for these issues but my local Ryobi authorized repair shop persisted for 5 months over the past winter with them and managed to get Ryobi to, at least, pay for a new battery cover. Ryobi refused to address the handle unlocking issue. The random unlocking at the handle lock levers has deteriorated to the point where I’ve had to wedge a piece of wood between the handles this summer to keep the locking pins from popping out most of the time. Keep in mind, at this point this lawnmower hasn’t even seen 3 full seasons of use. The makeshift piece of wood wedge is less effective now, the handle is unbelievably wobbly and there is evidence of the multi-piece handle cracking and coming apart. I don’t hold out any hope that my lawnmower will last the summer (2 years short of the 5 year warranty). The Ryobi warranty only benefits Ryobi. As for the lawnmower, it’s a poorly constructed hybrid of flimsy plastic and metal not designed to be durable. Not recommended.
                  by
                  Response from The Ryobi Canada TeamAug 20, 2026
                  Hi there, thank you for taking the time to share your feedback on the RYOBI 40V HP Brushless 20in Self-Propelled Lawn Mower Kit. We're sorry to hear about the issues you have experienced with the unit and with getting service for your mower. We would appreciate the opportunity to connect with you and see how we can make this better. Please contact RYOBI Customer Support at 1-800-268-4015 or by email at ryobicanada@ttigroupna.com with any case details or service information, and our team will be happy to assist you further. Thank you, RYOBI Canada Team. RyobiCanada
                    Great self propelled lawn mower
                    About 3 500 square feet with a few trees and still 2/3rd of the battery remaining. I used to use the wired 11A 13inch and I am happy I replaced it with this one. It’s heavier but you don’t really feel it most of the time due to the self propel and the handle is more comfortable too. As for the power when the wired one use to slow down due to thick grass, this one you hear it increasing the speed and it go through easier!
                    by
                      Ryobi is not Quality
                      [This review was collected as part of a promotion.] The structure of the mower is flawed, with metal screws going into plastic that wears out within a year. By year two, the mower is all-but-completely unusable. The batteries won't last either, without needing to be "reset" and you won't get the help you need without paying a pro as much as you'd pay for a new mower! I was leary of Ryo I, but bought a house's worth of tools. I should've followed my gut.
                      by
                      Response from RyobiMar 17, 2026
                      Hello, Lv10 - We're disappointed to read about the trouble you're having with your mower and batteries. If you would, please reach out to us via our Contact Us page at https://www.ryobitools.com/support/contact.
                        I have always been a Honda guy but wanted to get away from a gas powered lawn mower so I bought this lawn mower. I love it, it's easy to use and I don't have to fill a gas can to fill the mower so it makes things very easy. I have owned it for 3 months now and I would highly recommend this product.
                        by
                        Best Lawnmower
                        [This review was collected as part of a promotion.] This has been far the best lawnmower. It is quiet, self propelled, and the battery last me through out. It is also very easy to put away.
                        by
                          • Recommended
                          Great mower,small wires break debris gets inside t
                          [This review was collected as part of a promotion.] Hi all, Well I went to use my 40 volt self-propelled Ryobi today and nothing would happen. Turns out I took the top cover off After figuring out how to do it and found the very small red wires to the red key to have broken. When I took that cover off I couldn't believe how much debris was in there! Advice to all. Take the cover off once or twice a year and clean all the crap out! The way to get the yellow cover off as you must First Take the Black cover off that is over the wheels. It runs great now. But again, I couldn't believe how much crap got inside that cover. Good luck all
                          by
                            • Recommended
                            How is it that I waited so long to ditch my heavy gas-powered mower? This Ryobi battery-powered mower is so much lighter, quieter, easier to operate, and uses so much less of my energy than that tank of a mower that I had been using! It has plenty of power, includes a grass bag, is self-propelled, folds for easy storage, and is easy to maintain-no oil, no spark plugs, no mess. I'm sold! ?
                            by
                            2 found this review helpful
                            Open box sent as new
                            Home Depot sent me an open-box item while claiming it was new. The package was damaged, the packing inside was messy, and the charger itself had scratches. It’s obvious they’re hoping most customers won’t bother with a return as long as the product works. That’s a shady and dishonest way to do business.
                            by
                            Response from RYOBISep 19, 2025
                            Hello, Kk - We are sorry to hear that you received a used kit. To get assistance, please contact Home Depot's Customer Support by texting “Support” to 38698, 24 hours a day, 7 days a week, or by calling 1-800-430-3376, 7 days a week, 6 a.m. - 2 a.m. ET. We hope this helps! And if we can be of any assistance in the future, please let us know at Reviews@RYOBItools.com. RYOBIOutdoorTools
                              Happy after first use
                              I bought this mower to replace a gas model that served me well for many years. It only took about an hour and 10 minutes to fully charge the behemoth battery. Operating the mower and adjusting the right walking speed and blade height is fairly straightforward. My property is a little less than 1/4 acre with 3,400 sq ft of lawn area front and backyards. The mower performed well and blade speed adjusted for some thicker rear yard areas that hadn’t been mowed in a few weeks. I checked remaining battery when finished and lights showed 50% remaining but once I dropped it in the charger only one light was solid and 2nd light flashed so actual remaining battery was between 25 and 50%. I’m happy because that’s more than enough to complete my yard. It isn’t whisper quiet but much quieter than a gas mower for certain. I can mow and listen to music fairly easy. I used the self propelled feature for probably 90% of the time so great that the battery handled it fine. I also like that you can store it vertically once the handle is folded. I hope on the long run this mower holds up well.
                              by
                                • Recommended
                                3 found this review helpful
                                Showing 1-10 of 5,055 reviews

                                Compare Key Features

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                                Product Snapshot

                                Great for homeowners looking for a powerful cordless option, making mowing easier and more efficient.
                                Ideal for homeowners wanting gas-like power and effortless mowing, ensuring a pristine lawn.
                                Great for homeowners looking for a cordless, self-propelled mower, making yard work easier. This mower offers a powerful brushless motor and long battery life.
                                Ideal for homeowners wanting gas-like power, effortless self-propulsion, and quiet operation for up to 1/2 acre.

                                Battery Life

                                Up to 40 minutes
                                Up to 45 minutes
                                Up to 45 minutes per battery
                                Up to 45 minutes

                                Cutting Width

                                20 in.
                                20 inches
                                22 in.
                                20 in.

                                Power Source Cordless?

                                Battery Recharge Time

                                1.5 hours
                                Under 90 minutes
                                .75 hours
                                1 hour

                                Self-propelled Drive?