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Internet # 332032145

Model # RY40HPLM01K2

Store SKU # 1012507596

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40V HP Brushless 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger

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  • 40V HP Technology Delivers More Power Than a 163cc Gas Mower
  • Lawn Mower is Ideal for 3/4 Acre With up to 80 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 21" Self-Propelled Mower Kit delivers more power than a 163cc gas mower, making it a true gas replacement. The (2) included 40V 6Ah batteries give you up to 80 minutes of runtime for easily tackling up to 3/4 acre while utilizing two active battery ports. 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. The CUT COMMAND CENTER helps you monitor runtime and blade life, activate turbo mode and lights, & adjust self-propelled speed right at your fingertips. Achieve an extra boost to power through tough grass with the turbo mode. The 21" durable composite deck is lightweight, resists corrosion, and is covered by a lifetime warranty. 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 mower is backed by the RYOBI 5-Year Manufacturer's Tool Warranty, 3-Year Manufacturer's Battery Warranty, and includes RY40HPLM01 40V HP Brushless 21" Self-Propelled Mower, OP40605 (2) OP40605 40V 6Ah Batteries, OP406 40V Rapid Charger, Grass Catcher Bag, Start Key, Side Discharge Chute, and Operator's Manuals.

Highlights

  • 40V HP technology delivers more power than a 163cc gas mower, making it a true gas replacement; full throttle in under 2 seconds for instant power
  • Ideal for up to 3/4 acre with up to 80 minutes of runtime using the (2) included 40V 6Ah batteries; two active battery ports for optimal battery performance
  • 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.
  • CUT COMMAND CENTER - a control center located on the handles helps you monitor runtime and blade life, activate turbo mode and lights, and adjust self-propelled speed - all at your fingertips
  • Activate turbo mode to achieve an extra boost in tough grass
  • An integrated mulch plug switches from bagging to mulching by simply flipping a switch
  • Single-point height adjustment allows you to quickly select the perfect height for your lawn with 10 different positions (1 in. - 4 in.)
  • The pass through bag removal allows you to quickly empty the grass bag without spilling grass clippings
  • Each battery recharges in less than 60 minutes with included 40V Rapid Charger
  • Folding handles easily collapse for compact, vertical storage even in tight places
  • 21" durable composite deck is lightweight, resists corrosion, and is covered by a limited lifetime warranty
  • High-intensity LED headlights allow you to mow at dawn or dusk
  • Compatible with AC04025 21" Replacement blade, AC21GB 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: RY40HPLM01 40V HP Brushless 21" Self-Propelled Mower, OP40605 (2) OP40605 40V 6Ah Batteries, OP406 40V Rapid Charger, Grass Catcher Bag, Start Key, Mulch Plug, Side Discharge Chute, and Operator's Manuals
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Product Information

Internet # 332032145

Model # RY40HPLM01K2

Store SKU # 1012507596

Specifications

Dimensions

Cutting Width (in.)

21 inches

Mower Deck Width (in.)

21 in

Details

Battery Amp Hours

6 Ah

Battery Run Time (min.)

80

Battery Voltage (V)

40V

Battery/Charger

(2) 6 Ah Batteries & Charger Included

Charge Time (hours)

1

Charger Included

Charger Included

Cutting Height Options

10-position

Cutting Options

Bag, Mulch, Side-Discharge

Deck Material

Polymer Composite

Drive Type

Rear-wheel Drive

Features

Adjustable Cutting Height, Adjustable Speed, Assembly Required, Bagger, Brushless Motor, Foldable handle, Headlights, High Wheel, No Oil Change Required, Single-lever height adjustment, 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 in

Mower Size Type

Standard

Number of Blades

1

Number of Total Batteries Included

2

Outdoor Power Combo

Single

Power Type

Battery

Recommended Terrain

Flat, Sloped

Returnable

90-Day

Size of Yard

1/2 - 1 Acre

Start Type

Push Button Start

Tools Included

Battery, Charger, Mower

Walk Behind Mower Type

Self Propelled

Warranty / Certifications

Manufacturer Warranty

5 Year Mower, 3 Year Battery

Questions & Answers

Will the Ryobi Model # RY40HPLM01K2 lawn mower accept the 40 Volt 8 or 12 Ah batteriesModel # RY40HPLM01K2
ByAug 11, 2026
1 Answer | 
Answer This Question

Hello, Dons - Yes, both of those batteries will fit in the RY40HPLM01's battery compartment. 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 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger (RY40HPLM01K2).

By|Aug 15, 2026

    (1)

    Why is the self propel motion stop working after 2 years? That's what i'm hearing in the views
    ByAug 9, 2026
    1 Answer | 
    Answer This Question

    Hello, Confused - We're unable to comment on users' personal experiences with their mower. However, our goal is to ensure we develop and produce products that deliver a great experience for our customers. 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 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger (RY40HPLM01K2).

    By|Aug 11, 2026


      What’s covered
      ByAug 5, 2026
      1 Answer | 
      Answer This Question

      Hello, Kenny - You can find all details of the warranty here: https://images.thdstatic.com/catalog/pdfImages/e3/e34b27e6-7dab-4d0c-b216-fdfb8a94e4f4.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 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger (RY40HPLM01K2).

      By|Aug 7, 2026


        With 10 height adjustment positions to chose from Which position will mow at a 3.5 or 4” cut
        ByJul 28, 2026
        1 Answer | 
        Answer This Question

        Hello, Edga - The top position will mow at 4". To mow at roughly 3.5", you will need to put the deck at the next highest position. 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 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger (RY40HPLM01K2).

        By|Jul 30, 2026


          How to lower the base minimum self- propelled speed.
          ByJul 25, 2026
          1 Answer | 
          Answer This Question

          Hello, Bor88 - You cannot lower the self-propel speed beyond the minimum. 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 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger (RY40HPLM01K2).

          By|Jul 30, 2026


            Is the self propelled supposed to work when the blade is not turning? Mine only works when the bale handle is engaged
            ByJul 20, 2026
            2 Answers | 
            Answer This Question

            For safety reasons, the self-propelled function only works when the blade is engaged and you hold the bale handle.

            By|Jul 22, 2026

            Hello, Phil - The self-propelled levers can be used without engaging the blade to power the mower from one location to another. You must pull the bail and then one or both self-propel levers to move the mower without engaging the blade. 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 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger (RY40HPLM01K2).

            By|Jul 23, 2026


              How much does it weigh
              ByJul 20, 2026
              1 Answer | 
              Answer This Question

              Hello, Brian - This lawnmower weighs about 74.8 pounds. 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 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger (RY40HPLM01K2).

              By|Jul 23, 2026


                Why is serial number not being accepted by warranty registration?
                ByJul 19, 2026
                1 Answer | 
                Answer This Question

                Hello, Diane - 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 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger (RY40HPLM01K2).

                By|Jul 23, 2026


                  Viewing 1-8 of 249

                  Customer Reviews

                  4.5 out of 5

                  • 4.5 out of 2,055 reviews
                  • 86% recommend this product
                  Filter by:
                  Showing 1-10 of 2,055 reviews
                  Love this mower!
                  [This review was collected as part of a promotion.] It took a lot of convincing to get my hubby to agree to an electric mower. We both are so happy we did. This mower is easy to use, that power bar is super helpful going uphill and having two power banks allows us to finish our entire property. It’s easy to clean and it looks great.
                  by
                    • Recommended
                    Great device, super happy with my purchase, highly efficient battery, very professional.
                    by
                    I love Ryobi. I'm new to mowing lawns, etc. I originally bought the 13" deck 18V. It worked GREAT, but it took forever to finish my lawn - I'm too old for that! I bought the 21" self-propelled 40V. AWESOME!! Point it in the right direction, pull back on the bail and it does all the work. EXCELLENT!!
                    by
                    • Verified Purchase
                    40V Brushless self-propelled mower kit
                    [This review was collected as part of a promotion.] The best lawnmower I have ever used way more powerful than a gas. Plenty of battery time to cut my yard This lawnmower is an absolute beast
                    by
                      • Recommended
                      It says it's optimal for 3/4acres and 80minutes runtime but i have less than 1/4 lot (including my house) and i got less than 40minutes out of 2 batteries. i was able to mow part of my front yard before i had to recharge. it ended up taking me 5 batteries and 2 days to finish my whole small yard. I would NOT recommend buying this mower
                      by
                      Response from RYOBIJul 2, 2026
                      Hello, Dont waste your money - We're sorry to see that you haven't gotten the runtime you were expecting. And it would be great to hear more so we can try to improve your experience. Will you please be looking for an email from us at Reviews@RYOBItools.com? RYOBIOutdoorTools
                      Great Mower - skip the gas, air filters, spark plugs, rope pulling!
                      I am delighted with my mower model RY40HPLM01. Mine was in a package deal with two 40W, 6AH batteries and a rapid charger. I already had a rapid charger from another purchase, so now I can charge both batteries at one time, as it is recommended that you use both batteries while you are mowing. The batteries are NOT charged out of the box. So prepare to charge both before you start to mow. Otherwise, the mower is ready to use as a mulching mower right out of the box, no assembly needed. If you want to bag, you need to assemble the bagger first. If you wish to discharge the clipped grass, you need to attach the discharge shoot first. A discharge plug is already in place on the mower, and moves away for side discharge. (1) The Key. There is a safety key in the battery compartment that must be engaged before the mower will operate. The key is removable, so you can lose it really quickly and need to buy another one. I left mine plugged into the mower at all times since I have no kids or anyone who might try fooling with the mower. (2) The instructions & warranty cards are packed inside the battery compartment. They're not missing, so just look in the mower itself. (3) Height Adjustment is very easy with only ONE lever that raises or lowers all four wheels. (4) BLADES: This is a single-blade mower, and that is why it is less expensive than the other mower, which looks identical but has two blades and a very slightly more powerful motor. (5) RECHARGE TIME for each battery is a little over 30 minutes. When the batteries have been in use, they get hot. The charger will NOT begin charging until the batteries have cooled to the appropriate temperature. I have a fridge in my garage, and I put them in the fridge for a few minutes before recharging to help reduce the recharge time a bit. (6) The mower is very maneuverable. Unlike the gas-powered one, it easily rolls backwards when you release the self-propel levers. It is easily pushed without the self-propel levers engaged as well. (7) Speed Control is achieved by a button on the onboard command module mounted on the handle. The amount of pressure you apply to the self-propel levels does not affect the speed of mower travel. At the lowest travel speed, it moves pretty fast. It pulled me along at a good pace, so I didn't try it at faster speeds. (8) You can have the mower self-propel back to the shed without the blades turning. With the mower running, continue to hold the self-propel levers and release the bale bar. Releasing the bale bar will always stop the blades from turning, but the mower will still move forward until you release the self-propel levers. (9) Run Time. My home is on a little over a quarter-acre plot. I used less-powerful 40W Ryobi batteries when I got the mower, while the larger ones were being charged. The 4AH batteries mowed the front and the two 8' wide sides. When I put the batteries on their charges, they still had 3 of the 5 lights of charge still remaining. I am sure the OEM larger batteries will be more than enough to handle my entire front and back yards with no problem while they are new. (9) SAFETY feature: The mower will not start if you attempt a start with the mower at or exceeding a 45° angle. It will also shut off once that angle is approached. (10) Clean up instructions are never to use a water hose. It is permissible to use a hose to carefully clean the wheels if necessary, but do not use water on the mower. I don't allow my grass to get very tall, and I don't use the mower to cut small brush or other debris, so it has plenty of power to cut my grass and to mulch leaves. There is a button to allow a turbo mode, but I have not needed to use it. That provides additional torque to the blades, but also uses more battery power. I cannot speak to durability, as I have only had the mower a short time. It is about 80 pounds with batteries attached and has a thick, hard, high-impact plastic deck. The batteries are contained within a water-resistant compartment.
                      by
                        • Recommended
                        6 found this review helpful
                        This is the first battery electric lawnmower that I have owned. I really like how well it cuts the grass and has a grass catcher for picking up the excess clippings. It works well and is considerably quieter than my previous gas powered one. I now have many 18 and 40 volt RYOBI tools and value them greatly.
                        by
                        Mower was as good as expected. Self propelled speed can be adjusted and high speed is a slight jog.
                        by
                        It worked!
                        My wife wouldnt mow the lawn because she couldnt start the regular mower. Bought this and hell froze over! My wife can start it and even mowed the lawn! Success!
                        by
                          2 found this review helpful
                          Honored warranty
                          Our self propelled function broke after a year. Ryobi shipped us a new mower
                          by
                            4 found this review helpful
                            Showing 1-10 of 2,055 reviews

                            40V HP Brushless 21 in. Cordless Battery Walk Behind Self-Propelled Lawn Mower with (2) 6.0 Ah Batteries and Charger

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                            Product Snapshot

                            Great for homeowners looking for a powerful cordless mower, making lawn care easier and more efficient.
                            Ideal for homeowners wanting gas-like power, effortless self-propulsion, and quiet operation for up to 1/2 acre.
                            Ideal for customers who want gas-like power and all-wheel drive, ensuring effortless mowing.
                            Great for homeowners looking for a powerful cordless mower, making yard work easier and more efficient.

                            Battery Life

                            Up to 80 minutes
                            Up to 45 minutes
                            Up to 75 minutes
                            60 minutes

                            Cutting Width

                            21 in.
                            20 in.
                            21 in.
                            21 inches

                            Power Source Cordless?

                            Battery Recharge Time

                            Less than 60 minutes
                            1 hour
                            1 hour
                            2 hours

                            Self-propelled Drive?