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ONE+18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Lawn Mower- (4) Batteries & (2) Chargers
- ONE+ HP Technology Delivers More Power Than 150cc Gas Lawn Mower
- Ideal for Mowing 1/3 Acre With up to 45 Min. Runtime
- Over 300 ONE+ Products – All work with any RYOBI ONE+ 18V Battery
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Product Details
About This Product
The RYOBI 18V ONE+ HP Brushless 20" Self-Propelled Multi-Blade Mower delivers more power than a 150cc gas mower, making it a true gas replacement. With (4) included 18V ONE+ 4Ah batteries, this mower provides up to 45 minutes of runtime, making it perfect for lawns up to 1/3 acre. Experience the industry's best 3-in-1 cutting performance with the CROSS CUT Multi-Blade System. This allows for less clumping when mulching, further & more even dispersal when side discharging, and when bagging the fine clippings fill from back to front to maximize space for less bag changes. 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. As part of WHISPER SERIES, this mower is 60% quieter than gas, and even quieter than other cordless mowers, allowing you to mow at any time of day. 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 mowing, easily fold the handles and store vertically for compact storage. Best of all, it is part of the RYOBI 18V ONE+ system where any 18V ONE+ battery works with any 18V ONE+ product. This mower is backed by the RYOBI 3-year manufacturer's warranty.
Highlights
- ONE+ HP technology delivers more power than a 150cc gas mower, making this mower a true gas replacement
- Ideal for up to 1/3 acre and included (4) 18V ONE+ 4Ah batteries for up to 45 minutes of runtime using a 4Ah battery
- CROSS CUT Multi-Blade System allows for less clumping when mulching, further & more even dispersal when side discharging, and when bagging the fine clippings fill from back to front to maximize space for less bag changes
- 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
- This WHISPER SERIES mower is engineered to be 60% quieter than gas, and even quieter than other cordless mowers, allowing you to mow any time of day without disturbing others & making it perfect for areas with noise restrictions
- 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
- Durable composite deck is lightweight & resists corrosion
- Compatible with AC04030 20" Replacement Blades, AC20GB01 Replacement Grass Bag, AC04020FC Extra Capacity Grass Bag, ACMC02 Mower Cover, ACLS01 Lawn Striper
- Part of the RYOBI ONE+ system - Any 18V ONE+ battery works with any 18V ONE+ product
- 3-year manufacturer's warranty
- Includes: P11010 18V ONE+ HP Brushless 20" Lawn Mower, (4) PBP005 18V ONE+ 4Ah Lithium Batteries, (2) P117 18V ONE+ Chargers, Grass Catcher Bag, Mulch Plug, Start Key, Side Discharge Chute, and Operator's Manuals
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Product Information
Additional Resources
Shop All RYOBISpecifications
Dimensions
Cutting Width (in.) | 20 inches |
|---|---|
Mower Deck Width (in.) | 20 in |
Details
Battery Amp Hours | 4 Ah |
|---|---|
Battery Run Time (min.) | 45 |
Battery Voltage (V) | 18V |
Battery/Charger | (4) 4 Ah Batteries & Charger Included |
Charge Time (hours) | 4 |
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, Assembly Required, Bagger, Brushless Motor, High Wheel, Mulching Lawn Mower, Residential, Single-lever height adjustment, Variable Speed |
Included | Bagger, Battery(s), Charger |
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 | 2 |
Number of Total Batteries Included | 4 |
Power Type | Battery |
Recommended Terrain | Flat, Sloped |
Refurbished | No |
Returnable | 90-Day |
Size of Yard | 1/4 - 1/2 Acre |
Start Type | Push Button Start |
Tools Included | Battery, Charger, Mower |
Walk Behind Mower Type | Self Propelled |
Warranty / Certifications
Manufacturer Warranty | 3-year limited warranty |
|---|
Questions & Answers
Whats the best way to clean the mower?
Hello, Dlivin - We recommend these steps: - Before any cleaning, stop the mower, let the blades come to a complete stop, and remove the start key and battery packs. - Do not use a hose, water, or any liquids to clean the mower. Instead, remove any buildup of grass and leaves on or around the housing and underneath the deck, and wipe the mower with a dry cloth. - Turn the mower on its side to clear grass clippings from the underside of the deck. Clean the underside after each use. - Avoid solvents on plastic parts, and keep brake fluids, gasoline, petroleum-based products, and penetrating oils away from plastic components. 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 ONE+18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Lawn Mower- (4) Batteries & (2) Chargers (P11100).
Will Ryobi support the P11100 at least through the end of 2029? And what is the decibel rating when you're walking behind the mower?
Hello, Emower shopper - You can purchase replacement parts for this mower at our parts supplier and get warranty service as well. We do not have decibel information available to publish at this time, but this mower is quieter than a gas model. 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 ONE+18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Lawn Mower- (4) Batteries & (2) Chargers (P11100).
Will this model handle a multiblade system?
Hello, Scooter mgee - This lawnmower comes with two blades. 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 ONE+18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Lawn Mower- (4) Batteries & (2) Chargers (P11100).
Can this be purchased as "tool only" since I already have several 18v batterires
Hello, Sports doc - This mower is not sold as a tool-only. 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 ONE+18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Lawn Mower- (4) Batteries & (2) Chargers (P11100).
The side discharge shoot keeps falling off while I'm cutting. Is there some trick to installing it that will keep it from falling off?
Hello, Jack - Thank you for the question. If you would, please contact us by phone or text at 1.800.525.2579, Monday - Friday from 9 am to 5 pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Lawn Mower- (4) Batteries & (2) Chargers (P11100).
Can I only use one blade not two (not cross-cut)? Why? Easier to sharpen while on mower if jagged blade is not used. We do not see much improvement using cross-cut from our old Ryobi Hybrid 16 inch push mower with single blade.
Hello, Frugal - Yes, you're welcome to remove the jagged blade and just use the single blade. If you need further support, then feel free to ask another question. You can also contact us by phone or text at 1.800.525.2579, Monday - Friday from 9 am to 5 pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Lawn Mower- (4) Batteries & (2) Chargers (P11100).
Can the 8Ah or12Ah batteries work AND fit under the closed battery compartment cover?
Hello, Pierre - Yes, both the 18V 8Ah and 12Ah batteries will fit in the battery compartment with the lid closed. If you need further support, then feel free to ask another question. You can also contact us by phone or text at 1.800.525.2579, Monday - Friday from 9 am to 5 pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Mower - (4) 4.0 Batteries & (2) Chargers (P11100).
Do these batteries for this 18v mower also work with my 18v hand tools? Drill, blower, saws all…
Hello, Battery - Yes, the batteries included with this mower will work with all of your RYOBI 18V tools. If you need further support, then feel free to ask another question. You can also contact us by phone or text at 1.800.525.2579, Monday - Friday from 9 am to 5 pm (EST), or via email when you visit us at https://www.ryobitools.com/support/contact. This question is from RYOBI ONE+ 18V HP Brushless Whisper Series 20" Self-Propelled Multi-Blade Walk Behind Mower - (4) 4.0 Batteries & (2) Chargers (P11100).
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