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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 # CM1936

Internet #202045619

BLACK+DECKER 19 in. 36-Volt Cordless Electric Lawn Mower with Removable Battery

Discontinued BLACK+DECKER

19 in. 36-Volt Cordless Electric Lawn Mower with Removable Battery

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Product Overview

Featuring a 36-volt sealed, lead-acid battery, the BLACK+DECKER 19 in. Electric Lawn Mower with Removable Battery provides a run time sufficient for coverage of up to 1/3 acre dependent on grass conditions. The mower's lift-out battery offers charging away from the mower and convenient battery replacement. With no gas, oil or tune-ups required, this mower offers easy and hassle-free maintenance while keeping your lawn looking great.

  • Assembled dimensions: 22.75 in. W x 36.188 in. D x 18.50 in. H
  • Lift-out battery can be charged away from the mower and replaced with other batteries (sold separately) for use on larger lawns
  • 19 in. cutting path for optimal coverage
  • 1-1/2 in. to 3-1/2 in. cutting height range to manicure the lawn to your specifications
  • Deck and blade design help to maintain a great-looking lawn
  • 3-in-1 mower deck features a mulch plate and rear bag and can be used with a discharge (sold separately)
  • 7 in. front wheels and 9 in. rear wheels for maneuverability
  • Pull-handle design for easy starting
  • No gas, oil or tune-ups required
  • 36-volt sealed, lead-acid battery provides mowing of home sites up to 1/3 acre dependent on grass conditions
  • Note: Product may vary by store
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Name 20 in. 40-Volt MAX Lithium-Ion Cordless Walk Behind Push Lawn Mower with (2) 2.0 Ah Batteries and Charger Included 19 in. 36-Volt Cordless Electric Lawn Mower with Removable Battery 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
Ratings (14) (543) (7) (1077)
Power Type Battery Battery Battery Battery
Engine Make OEM Branded OEM Branded OEM Branded
Features Adjustable Cutting Height,Adjustable Handlebar,Bagger,Foldable handle,Mulching Lawn Mower,Single-lever height adjustment Bagger,Foldable handle,High wheel,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.)
36.188 in
Assembled Height (in.)
18.5 in
Assembled Width (in.)
22.75 in
Blade Length (in.)
19 in
Cutting Width
19 inches
Front Wheel Size (in.)
Mower Deck Width
19 in
Rear Wheel Size (in.)


Amperage (amps)
Assembly Required
Charge Time (hours)
Cutting Options
Bagger,Foldable handle,High wheel,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, 90 Day Money Back Guarantee

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Customer Questions & Answers

mower will not do anything

I tried to start it and nothing happened, checked blade and it turned freely, put the battery straight to charger and light went from red to green, so then put battery back in mower and plugged it to handle and light went from red to green so it seems like battery and charger are good and looks like power in getting to battery though cord on mower, so could it be the key or button on side that is broke? Any help would be greatly appreciated.
Asked by: Mike
This answer is for both Mike and Bill. Make sure you have the orange key inserted in the right handle. It won't operate without it.(safety feature) Once the key is inserted press orange button in and hold it on the right side of the top handle. With the button pressed in still, pull back on the secondary lever on the handle just like a regular lawnmower. Mine starts everytime with just the press of the button. If that doesn't work then The battery probably wasn't fully charged or the connecting pins between the two weren't properly aligned( unlikely). If not that I don't knbow.
Answered by: steve
Date published: 2015-09-20

My mower blade will not turn with the battery power but freely turns by hand what can I do to fix this problem.

I do not have the manual lost during move and will self propel via battery power. What can I do to fix it myself?
Asked by: Bill
I am buying a B&D to replace an old Homelite. Regardless, my Homelite went the same way - full charge, no motion. I tore the thing apart, as I know just enough to be dangerous. Long story short, when power was being supplied to the motor, the motor would not turn (it did turn freely by hand). I checked the brushes (they checked okay), checked the circuits, and checked the motor itself by bypassing everything between it and the batteries. I checked to verify that the motor was receiving 24ish volts, it was. Turned out the motor had just burnt out after about sever or eight years. I thought about trying to track down a replacement motor but I don't think it will be worth the effort after the cost associated - that, plus the charger is going and I would have to wire something else up to charge the batteries directly... so yeah... about to buy the B&D. Different mower, but same problem, with similar guts. Thought it might help.
Answered by: casualconundrum
Date published: 2015-09-20

Where can I get a second battery and charger for this mower?

Asked by: kjul
I was able to order a second battery online at Home Depot. That is also how I had to order replacement blades.
Answered by: flipgirlmom
Date published: 2015-09-20

Battery Weight

How much does the battery weight
Asked by: jt15
About 8 lbs or about as much as a gallon of milk.
Answered by: James
Date published: 2017-07-18
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Customer Reviews

19 in. 36-Volt Cordless Electric Lawn Mower with Removable Battery is rated 4.3 out of 5 by 543.
Rated 5 out of 5 by from I purchased this product 5 years ago and it's still running great! I've followed the manufacture... I purchased this product 5 years ago and it's still running great! I've followed the manufacturer advise of keeping the battery on a charge, even in the winter and it's kept it's charge the entire time. I'm able to do both my front and back lawns with one charge. The battery removes from the mower and charges using a cord to a socket. The adjustment pedal for the cutting heights are easy to use. I just leave the safety key in the mower, so I don't lose it. The wheels are not powered, so it's just the blades that spin. I would say the only negative thing is the battery compartment can sometimes get grass and other stuff in it making it difficult to remove the battery easily because it's such a tight fit.
Date published: 2017-07-18
Rated 5 out of 5 by from Best Lawn Mower on the Planet I spent too many weeks researching what lawn mower to purchase. I finally purchased and used this mower yesterday and it far exceeded expectations. I have a significant amount of grass to mow so I was concerned about the battery staying fully charged - but I had more than enough juice left to go over (in the pursuit of perfection) both the front and back lawns twice! Grass was also a little wet from previous day's rain - but again, no worries. Note: I let the battery charge for 24 hours before my first use. And it's also great that you can easily carry on a conversation while the mower is running. So I am left to ponder: Why on Earth does anyone still use a gas powered mower?
Date published: 2012-05-21
Rated 5 out of 5 by from Second one, Fit my needs perfectly Strong points include easy height adjustment, no fooling with gas or oil, and consistent instant trouble free operation. This is my second B/D electric mower. After 7 years the first one has nearly worn out so it was probably about the same price to buy a new one versus fixing wheels, blade, skirt and a new battery. I have a premier grass lawn and also several larger areas that are heavy weeds. This unit handles either with ease. Although 70, I still like the exercise of a push mower, so that is not an issue.
Date published: 2013-07-31
Rated 5 out of 5 by from My favorite feature is the push button start. I was using a push reel (no motor) for the good of the environment, and decided to upgrade to electric. When the cordless feature and removable battery were available I was sold. The ability to choose between bagging the clippings or mulching is very convenient. I bag when the back lawn gets long before I cut it. I easily rolled through tall, thick patches without losing power. I cut the front and back lawn (small lot) without running the battery down, recharged it in an hour and set it aside until the next use. I haven't used a gas powered pull starter in years because I have been using a push reel without a motor, so my favorite feature on the CM1936 is the push button start.
Date published: 2012-07-30
Rated 5 out of 5 by from Worked like a champ right out of the box I was VERY apprehensive about spending this kind of money on a lawnmower - period - based on the size of my yard (much too big for a pushreel, too big for a corded mower). Not to worry...out of the box the battery took less than 12 hrs to fully charge. Our lawn normally takes 45-60 minutes to mow so we somewhat went at warp speed just in case the battery wasn't gutsy enough. Also not to worry...lots of power left over after 45 minutes. All the concerns in other reviews about weight did not apply - this handles and feels the same as the Craftsman 6 HP 21 inch gas mower that I retired with the success of this electric mower. I also like the fact that you can charge the battery either in the mower or on the bench.
Date published: 2012-05-09
Rated 5 out of 5 by from Works Great! I looked at a number of electric mowers, and this one is the only model I found that had everything I was looking for. Its a good size mower and is extremely easy to use. It might look in the pictures like it would be a heavy machine, but its actually very light and handles very well. Its easy as can be to switch out batteries for larger mows, I bought an extra battery for that purpose. Its also nice that it easily collapses to fit in an out-of-the-way place in my garage. All in all, I'm quite pleased.
Date published: 2013-06-21
Rated 5 out of 5 by from Love this electric workhorse When I had a smaller yard I had a lighter, quieter, green mower. Now that I have 1/2 an acre I needed to step up my mowing game but still wanted a rechargeable electric. I've had the Black and Decker for 2 months and it does everything I want it to do. I can get the whole yard done on one charge and it makes a nice wide and even swath through the yard.
Date published: 2013-09-23
Rated 4 out of 5 by from Works as advertised We purchased our mower in the spring of 2014. I've used it twice so far and it does a very nice job. I'm using it to mow around the house keeping the length down until the regular mowers come to finish the whole yard. I'm almost 60 years old, and its a little heavier than I expected. Its a little harder to push around on the soft, soggy, spring turf. Once it dries out I think the weight of the machine will be less of an issue. The battery life last longer than I do and the cutting is as good as any other mower I've ever had. I would like to see the price down around $150-$175 but its not bad.
Date published: 2014-05-22
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