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20 in. 40-Volt MAX Lithium-Ion Cordless Walk Behind Push Lawn Mower with (2) 2.0 Ah Batteries and Charger Included
  • Model CM2045
  • Internet #206812888
  • Store SO SKU #

20 in. 40-Volt MAX Lithium-Ion Cordless Walk Behind Push Lawn Mower with (2) 2.0 Ah Batteries and Charger Included

$29900 /each
Discontinued Model:

Model # CM1836

Internet #202816992

BLACK+DECKER 18 in. 36-Volt Cordless Electric Lawn Mower

Discontinued BLACK+DECKER

18 in. 36-Volt Cordless Electric Lawn Mower

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Frequently Bought Together

Product Overview

Mower Features
Terrain - Sloped with Obstacles
2 Year Warranty
18in Cutting Width
1 Blade
cutting options: bag, mulch

The BLACK+DECKER 18 in. Cordless Electric Lawn Mower provides the freedom of a gas mower with the convenience of electric. Easy to start, it requires no gas, oil or tune-ups, ensuring years of hassle-free use. This mower is ideal for lawn areas typical of up to a 1/3 acre home site, offering the option to either bag the clippings, mulch them or discharge from the side.

  • Assembled dimensions: 21 in. W x 60 in. D x 40.5 in. H
  • With an 18 in. lifetime deck and highly efficient blade, users can achieve a manicured lawn without the hassles of a gas-powered mower
  • Clean electric power means no oil changes, tune-ups or trips to the service station
  • Instant start allows users to insert the key, pull the handle and go without any frustrating startup issues
  • Much quieter than gas mowers, allowing for early morning mowing without waking the neighbors
  • Adjust the height of all four wheels at once with the pull of a lever
  • With three cutting options, users can choose to mulch, store cut grass in the rear bag or discharge from the side
  • Unlike gas mowers, users can easily fold the mower for upright or compact storage, ideal for small spaces in sheds or garages
  • Soft grip handle provides maximum comfort while mowing
  • Rechargeable 36-Volt battery and highly efficient motor allow you to mow up to 1/3 of an acre on a full charge
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Name 19 in. 36-Volt Lead Acid Cordless Electric Mower 18 in. 36-Volt Cordless Electric Lawn Mower G-MAX 19 in. 40-Volt Lithium-Ion Cordless Battery Push Lawn Mower - Battery and Charger Included 21 in. 56-Volt Lithium-ion Cordless Battery Push Mower with 5.0Ah Battery and Charger Included
Brand Worx BLACK+DECKER Greenworks EGO
Ratings (67) (254) (7) (1080)
Power Type Battery Battery Battery Battery
Engine Make OEM Branded OEM Branded OEM Branded OEM Branded
Features Bagger,Deck cleanout,Foldable handle,Mulching Lawn Mower Bagger,Foldable handle,Mulching Lawn Mower,Rust resistant deck,Single-lever height adjustment,Tool-free adjustments Bagger,Mulch Switch,Mulching Lawn Mower Adjustable Handlebar,Battery level indicator,Foldable handle,Headlights,Mulching Lawn Mower,Rust resistant deck,Single-lever height adjustment,Tool-free adjustments
Refurbished No No No No
Size of Yard 1/4 - 1/2 Acre 1/4 - 1/2 Acre 1/4 Acre or Less 1/4 - 1/2 Acre
View Product View Product View Product View Product



Assembled Depth (in.)
60 in
Assembled Height (in.)
40.5 in
Assembled Width (in.)
21 in
Blade Length (in.)
18 in
Cutting Width
18 inches
Front Wheel Size (in.)
Mower Deck Width
18 in
Rear Wheel Size (in.)


Amperage (amps)
Assembly Required
Charge Time (hours)
Cutting Options
Engine Make
OEM Branded
Bagger,Foldable handle,Mulching Lawn Mower,Rust resistant deck,Single-lever height adjustment,Tool-free adjustments
Lawn Mower Type
Push Mower
Maximum Cutting Height (in.)
Minimum Cutting Height (in.)
Number of Blades
Number of adjustable handlebar positions
Power Type
Product Weight (lb.)
Run Time (min.)
Size of Yard
1/4 - 1/2 Acre
Start Type
Terrain Type
Sloped with Obstacles
Voltage (volts)
Walk Behind Mower Type
Manual Push

Warranty / Certifications

Certifications and Listings
No Certifications or Listings
Manufacturer Warranty
Full 2 Year Warranty 30 Day Satisfaction Guarantee

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Customer Questions & Answers

Does it come with batt. and charger?

Many retailers are selling mowers only to get you in the door thinking you have found a good deal only to find it's no deal at all because it does not come with a charger or battery, close to $200 additional charge.
Asked by: norcalkid
The battery is already installed. Plug-in charger overnight and good to go next day or sooner
Answered by: Chuck
Date published: 2016-08-15

Is it both electric and cordless?

Asked by: Maggie
No, cordless only
Answered by: Chuck
Date published: 2016-08-15

does this mower come with abattery charger. black & deckeer 1836

Asked by: louie
Answered by: Chuck
Date published: 2016-08-15

Does it come with a side discharge chute or only a grass bag?

Asked by: Steve
It comes with rear grass bag only. Without did attached it is a mulcher
Answered by: Chuck
Date published: 2016-08-15
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Customer Reviews

18 in. 36-Volt Cordless Electric Lawn Mower is rated 3.9 out of 5 by 254.
Rated 5 out of 5 by from Mowing is a dream with this wonderful electric mower! I'm a widow. I've never mowed a yard before but I bought my small house with a small yard in front and back in need of mowing. I bought this lovely cordless mower because I didn't want to mess with gas, oil, etc. and I couldn't be happier! It mows my entire yard on one charge. No mess, no fuss. Quiet as mowers go. Very very nice. I wholeheartedly recommend this mower.
Date published: 2012-04-25
Rated 4 out of 5 by from Product was easy to setup and use - was mowing after the first charge Mower was simple to set up. let charge overnight before using - worked flawlessly. Mowed for about an hour without any issues. one yard at a 5 setting and one at a 3 setting. Mulching feature works great. I have not bagged any mowing yet - not sure that i will since mulch feature works so well. Only issue i have had so far is at the lower settings and mulching you sometimes have to walk a bit slower to not bog the mower down. Plug mower back up after using and leave it plugged until i mow again and easily get a hour worth of time.
Date published: 2013-07-25
Rated 4 out of 5 by from Great product if you don't have thick bermuda style grass This is a well made product but it doesn't have the power needed for thick bermuda grass. Even when cutting only 1/2" or so, if the grass is thick you need to go real real slow to keep it from bogging down. Works real well on rye grass.
Date published: 2012-11-20
Rated 5 out of 5 by from great device Bought 6/29/12 today 7/29/12. It cut my lawn right out of the box. The charging seems quick and it's a bonus that it doesn't have to be unplugged from the charger ever. That first time my lawn had gotten high and so I hooked on the grass catcher. When done I went to empty the grass catcher to find there was nothing in it. What fooled me was there were no remains of cuttings at all! Of course it comes with the mulcher attachment already inserted, if you want to use the catcher your remove it...but why bother. It's like fertilizer! Also there are many height adjustmets. And I like its sleek look. Parts and stuff I'll have to see about down the road. In other mowers I've always been able to sharpen or fix it by myself or with a machinest's help.
Date published: 2012-07-29
Rated 5 out of 5 by from Excellent I had a Neuton mower for many years! I purchased the B&D CM1836 as a replacement which turned out to be a very good mower. Recommend this mower highly!
Date published: 2012-05-15
Rated 5 out of 5 by from Very powerful machine. You could say it's just a regular electric mower. It has just two discharge options: bag or mulch, but that should be enough. The description says it can discharge on the side but I haven't found how, I haven't looked to hard either but I believe that's not the case. It's really easy to assemble as the main part is assembled and one just need to attach the handle bar and attach the switch to it. Took me about 15 min. It's kind of heavy. The bad is pretty normal in size for a mower this big. The battery has lasted a max of 1.5 hrs or heavy work. I had a lot with pretty tall weeds (2-3 ft) and I wanted to try this on it and worked just fine. You need to be gentle though, as I was leaning forward to raise the mower on top of the weeds so the weeds didn't get stuck under it. I'm really pleased with this machine as has worked very good for this really hard work. See pics attached.
Date published: 2015-07-29
Rated 5 out of 5 by from Great Mower, No Hassles This mower has power without a cord to get in the way. No need for gas. Easy to push and maneuver. Was easy to assemble too. The safety key didn't come attached, so I tied it to the mower handle with a ribbon for convenience. Mows front & back yards are one charge (we have a small yard). Makes life very easy. I highly recommend it. My last mower warned the battery might only last 4 years, but if you keep it plugged in when not in use, it lasts a dozen easy.
Date published: 2016-05-07
Rated 5 out of 5 by from Great Mower The only reason we purchased this mower (again) was because the Key in the old one would not fit anymore. Even a new key sent by the factory would not work. We really don't know what to do with the old mower - it is still serviceable, battery is still good (after 4 years), and it worked like a charm. These are the best mowers I've ever had (I'm 76) and am sorry to have the old one just sit there. However, we are pleased to have another, and this time we purchased insurance. I would recommend this mower for anyone looking for a care-free, reliable, no electric cord to get in the way, and quiet battery-powered mower. Except for the key problem, these mowers are reliable and fail-safe.
Date published: 2016-05-31
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