New Model

20 in. 40-Volt Brushless Lithium-Ion Cordless Electric Lawn Mower with 5.0 Ah Battery
  • Ryobi
  • Model # RY40180
  • Internet # 206481611

20 in. 40-Volt Brushless Lithium-Ion Cordless Electric Lawn Mower with 5.0 Ah Battery

$399.00 /each

Compare to Discontinued Model View Product

Discontinued Model



Model # RY14110A

Internet # 202042176

20 in. 48-Volt Cordless Self-Propelled Lawn Mower-DISCONTINUED

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



Model # RY14110A

Internet # 202042176

This Ryobi 20 in. Self-Propelled Cordless Electric Mower utilizes a 20 in. steel deck with an adjustable height of 1-1/2 - 4 in. to achieve your desired look. The removable 48-volt battery is simple to charge. With a self-propelled drive system, the mower

California residents: see  Proposition 65 information

  • Removable and rechargeable 48-Volt battery for convenience
  • Rear-wheel drive reduces fatigue while mowing
  • 20 in. cutting path offers optimal mowing
  • 1-1/2 - 4 in. adjustable height for a manicured lawn
  • Side and rear discharge and mulch options meet your seasonal needs
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Assembled Depth (in.) 
59 in 
Assembled Height (in.) 
40 in 
Assembled Width (in.) 
21 in 
Blade Length (In.) 
19.5 in 
Rear wheel size (in.) 
Size of Yard 
1/2 - 1 Acre 
Charge time (hours) 
Cutting Options 
Cutting Width (in.) 
Drive type 
Rear-wheel Drive 
Electric Mower Type 
Bagger,Battery level indicator,Foldable handle,Mulch Switch,Rust resistant deck,Single-lever height adjustment,Tool-free adjustments 
Fuel Type 
Rechargeable Battery 
Bag Kit,Batteries 
Lawn Mower Type 
Walk Behind 
Maximum cutting height (in.) 
Minimum cutting height (in.) 
Mulching Capability 
Number of Blades 
Number of adjustable handlebar positions 
Product Weight (lb.) 
95 lb 
Run time (min.) 
Start Type 
Flat with Obstacles 
Voltage (volts) 
Walk Behind Mower Type 
Self Propelled 
Warranty / Certifications
Certifications and Listings 
No Certifications or Listings 
Manufacturer Warranty 
3 year 


Brand: Ryobi
Price: $300 - $400
Size of Yard: 1/2 - 1 Acre
Cutting Width (in.): 20
Start Type: Electric
Review Rating: 3 & Up
Reconditioned: No


Rated 3.2 out of 5 by 461 reviewers.
Rated 1.0 out of 5.0 by Battery Failure Purchased this mower in the spring of 2011. Worked reasonably well for the first summer - squeaky wheels, very heavy to push, porr "suction" of fine grass - had to run over some spots 3 times. Battery stored over the winter as per directions - inside, charged regularly. Battery died July of 2012; battery warranty is only 1 year. Replacement cost nearly the cost of the mower. Have replaced with a gas mower which I should have bought in the first place. Would not recommend this product under any circumstance!!! October 6, 2012
Rated 2.0 out of 5.0 by self propelled First I love my Ryobi tools, so to get one of there lawn mowers seemed like a no brainer. I am 6ft- 210 and work out allot, this thing drags me accross the lawn. It is heavy but I use more energy pulling back than I do pushing forward without the drive. My wife would not stand a chance. I phoned Ryobi thinking it was a defect, they told me that's the way it was designed! Who would design a lawn mower you have to fight with. It's going back June 12, 2012
Rated 1.0 out of 5.0 by DEFECTIVE BATTERIES! To be honest, this is a great mower. But your battery *will* die and Ryobi WILL NOT honor your warranty. When it worked, it was awesome. But the battery will cost you half of a new mower and even if you take it to an authorized warranty center, you will never get a replacement. You'll be put on a indefinite wait list and never get a battery. The place near me (only one service place in a 30 mile radius around a major metro area) had about 10 of them waiting... all with dead batteries and no-one ever got one. I'm well outside my return window with HD, so I'm stuck with it. AVOID THIS MOWER. Find a company willing to stand behind their product. November 18, 2011
Rated 1.0 out of 5.0 by Very poor quality and very bad customer support Pros: - cuts the grass and mulches it nicely - easy to start - self-propulsion is a nice to have Cons: - really poor quality and bad customer support; used it for only 2 years and now it's dead - handle cracked after only a few months - started squeaking after a few months - charger started malfunctioning after less than a year; waited for almost 4 months for a replacement; had to argue many times over the phone with their customer support - battery connection overheated and melted the plastic holding the connection pins which then tore off, so now I cannot connect the battery to the body anymore, thus the unit is now unusable - quite heavy May 18, 2013
Rated 5.0 out of 5.0 by Excellent! Does a great job - as advertised, the equivalent of any gasoline mower in its class. It seems very solid, and I expect it to last quite a few years. In addition to mowing grass it does a wonderful job of mulching leaves. The self-propelled feature is if anything a bit too powerful - until you get used to it it can feel as if you're taking a big dog for a walk. Only real downside is that the machine is HEAVY. However nearly half of the weight is in the battery pack, which can be removed when not in use. So the weight isn't as much of a disadvantage for transport and storage as you might think. Strongly recommended! April 3, 2010
Rated 2.0 out of 5.0 by nice concept, poor execution Loved it at first - quiet, no bad smell, no vibration. The self-propel was grabby & too fast for me. battery lasted long enough to get either front or back yard (not both) couldn't buy an extra one at that time. It was like vacuuming the lawn. The foam handle cover tore off within the first couple uses (I duct-taped it). after a while, the battey would not charge enough to complete the yard. The self-propel function stopped working. Grass packed up around the drive belt & was hard to clean off. then the batter leaked. took it to Home Depot this past Monday, they sent it to the local authorized service shop. not having fun with this... February 16, 2012
Rated 1.0 out of 5.0 by BAD PRODUCT, BAD SERVICE I purchased this mower at Home Depot. Had the mower for about 90 days, maybe, the battery went out. Talked to Home Depot, needed to talk to the Ryobi company. Talked to the company. First two people I talked to gave me the run around. Third person seemed to know what to do, told me she was sending me a new battery and charger, two weeks. After four weeks and serveral more calls, I was told another two weeks, back order and all. Long story short, this was November, I was told that I was on the list to get a battery in LATE FEBUARY, MAYBE. You have to be kidding, no customer service at all, bad company, bad product. January 8, 2012
Rated 1.0 out of 5.0 by Great concept, really bad battery I've had this mower for only one season. I loved the quiet sound and it cut well. The mower is very heavy, so cutting on a hill was a problem. Even with my small lawn, the battery died before the lawn was cut. By the end of the summer however, the battery was dead! It leaked acid and had to be replaced. Of course, a new battery was both expensive and...not available until spring. I bought a new gas mower and sent this mower to the landfill after only one season. Not environmentally friendly. April 18, 2013
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