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BLACK+DECKER Electric Lawn Mower, String Trimmer, Edger, 3-in-1, Corded (BESTA512CM)

4.2 4.2 out of 5 stars 8,563 ratings
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Amazon's Choice in Walk-Behind Lawn Mowers by BLACK+DECKER

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Corded Lawn Mower

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About this item

  • 3-IN-1 ELECTRIC LAWN MOWER - Corded mower, trimmer and edger combined in one compact machine.Battery Included: no
  • LIGHTWEIGHT DESIGN - 9.9lbs with adjustable handle and height positions for comfort and control
  • AUTOMATIC FEED SPOOL - Feed more cable without stopping or bumping.
  • COMPACT MOWING - Built for smaller yards with a 12-inch cutting width and 1.6 inch cutting height. RPM: 8000 rpm
  • UNLIMITED RUNTIME - Gasless corded power with built-in cord retention system to prevent accidental disconnection. Extension cord not included.
  • It Includes - BESTA512 String Trimmer , MTD100 Detachable Mower Deck , AF-100 Spool , Auxiliary Handle , Guard. Great for inclines or areas difficult to mow with standard mowers

Customer ratings by feature

Light weight
4.6 4.6
Easy to assemble
4.4 4.4
Easy to use
4.3 4.3
Maneuverability
4.0 4.0

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BLACK+DECKER Electric Lawn Mower, String Trimmer, Edger, 3-in-1, Corded (BESTA512CM)
BLACK+DECKER Electric Lawn Mower, String Trimmer, Edger, 3-in-1, Corded (BESTA512CM)
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Price-11% $89.00
List:$99.99
-15% $109.99
List:$129.99
$179.99$79.99$169.00$86.60
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Easy to assemble
4.4
4.4
4.6
4.6
4.1
4.4
Maneuverability
4.0
4.0
4.2
4.2
4.1
4.1
Light weight
4.6
4.5
4.7
4.8
4.4
Easy to use
4.3
4.2
4.3
Battery life
3.5
3.0
3.5
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
power source
Corded Electric
Corded Electric
Battery Powered
manual
Manual
Corded Electric
material
Alloy Steel
Metal
Metal, Alloy Steel
cutting width
12 inches
15 inches
13 inches
16 inches
16 inches
7.5 inches
number of positions
12
6
5
4
operation mode
Automatic
Automatic
Automatic
Manual
Manual
weight
9.9 pounds
28 pounds
23.1 pounds
20 pounds
14.32 pounds

From the manufacturer

BLACK+DECKER 12 inch 3-in-1 Compact Electric Lawn Mower

BLACK+DECKER 12 inch 3-in-1 Compact Electric Lawn Mower

Versatile multi-function corded electric lawn mower, trimmer and edger for all your lawn needs.

Features and Benefits of the BLACK+DECKER 12 inch 3-in-1 Compact Electric Lawn Mower

3-IN-1 LAWN CARE

AUTOMATIC FEED SPOOL (AFS)

EASY CONVERTING

3-IN-1 LAWN CARE

Mow, trim, and edge with one lightweight tool, powered by a powerful 6.5amp motor.

AUTOMATIC FEED SPOOL (AFS)

Continue working without bumping or having to stop to adjust the spool.

EASY CONVERTING

Easily converts to wheeled edger with a simple rotation of the trimmer head.

Powerdrive Transmission

Powerdrive Transmission

Powerdrive Transmission provides maximum performance when trimming through the toughest weeds, grass, and overgrowth.

3-in-1 Lawn Care

LAWN MOWER

TRIMMER

EDGER

LAWN MOWER

Cut unwieldy lawns with ease thanks to Powerdrive Transmission Technology

TRIMMER

Easily converts to trimmer for cutting around gardens and flower beds.

EDGER

Quickly pivot to wheeled edger in seconds for cleanly manicured lawn borders.

Product guides and documents

Product information

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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BLACK+DECKER Electric Lawn Mower, String Trimmer, Edger, 3-in-1, Corded (BESTA512CM)


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Product Description

Get the job done with the BLACK+DECKER 12-inch 3-in-1 Compact Electric Lawnmower, a corded mower, trimmer, and wheeled edger all in one lightweight machine. Equipped with a gasless 6.5 amp motor and Power drive TM Transmission for increased torque and more cutting power at the string. Easily mow your grass on inclined areas and tight spaces then detach the mower deck to use it as a string trimmer, then rotate the trimmer head to use it as an edger. Great for small yards and along borders, sidewalks, and flower beds. Featuring a built in cord retention system to prevent accidental cord disconnection. Extension cord not included.

Customer reviews

4.2 out of 5 stars
4.2 out of 5
8,563 global ratings

Customers say

Customers like the quality, ease of use, size and weight of the lawn mower. For example, they mention it works like a regular mower, is easy to put together and is great for a smaller yard. That said, some complain about the durability.

AI-generated from the text of customer reviews

902 customers mention690 positive212 negative

Customers like the quality of the lawn mower. They mention it does a great job, works like a regular mower, and is easy to assemble. Some say that it's a good product for weed whacking and minor lawn mowing, and that it does exceptionally well on tall grass.

"...Compact, can be tucked into a small corner.- Did exceptionally well on my tall grass! Many sections were well over 6 inches...." Read more

"I've mowed and trimmed my lawn about 5 times with this now and it's just fantastic. For the money. As long as you have a small lawn...." Read more

"...This item is perfect. At 10 lbs it feels weightless. The string trimmer cut the grass and the wheels kept it at the same height...." Read more

"...this, and it was perfect - it's not heavy, easy to assemble and got the job done. My yard looks great again!" Read more

472 customers mention421 positive51 negative

Customers like the ease of use of the lawn mower. They mention it's super easy to use, put together, and control. Some appreciate the lightweight design and the ability to change the twine. They also like that it'll remove and replace the weed eater so they can trim as they go. Overall, most are happy with their purchase and recommend it to others.

"Pros:- Easy assembly. Just had to connect shield to weed wacker, lock it in the base, and attach the trimmer/edger handle.-..." Read more

"...I took a chance on this, and it was perfect - it's not heavy, easy to assemble and got the job done. My yard looks great again!" Read more

"...Otherwise, it was easy to use and got the job done.Update:..." Read more

"...With this fun to use, light and nifty little edger/mower that I can enjoy taking care of my yard weekly and all by myself... I won't and NEVER will..." Read more

326 customers mention302 positive24 negative

Customers like the size of the lawn mower. They mention that it's great for a smaller yard, and works well. It's small but mighty, and easy to maintain. It also makes it easy to store. Some customers also mention that the lawnmower hangs on the wall and needs no floor space or gas.

"...Haven't tried the trimmer yet.- Great for a small to medium size yard, limited space for storage, people with arthritis, seniors, disabled,..." Read more

"...All in all it's really cool. Low cost, compact, easy, light, and it works...." Read more

"...as a weedwhacker to do the edges and around the fence, so it is perfect for my space...." Read more

"Great for small yards Light weight and easy to use" Read more

312 customers mention304 positive8 negative

Customers find the weight of the lawn mower to be very light. They say it feels weightless and that elderly or women wouldn't have a problem using it.

"...Light weight, can pick it up with one hand.- Compact, can be tucked into a small corner.- Did exceptionally well on my tall grass!..." Read more

"...Mower is of course light enough to easily pick up and swing around into position--something you can't do with a regular mower...." Read more

"...This item is perfect. At 10 lbs it feels weightless. The string trimmer cut the grass and the wheels kept it at the same height...." Read more

"...I took a chance on this, and it was perfect - it's not heavy, easy to assemble and got the job done. My yard looks great again!" Read more

159 customers mention133 positive26 negative

Customers like the maneuverability of the lawn mower. For example, they say it's easy to maneuver, handle, and use. Some mention it'll work well for seniors with severe back issues, and it'd be easy to pick up and move for tight areas. That said, some are happy with the product's maneuverability.

"...a couple times going over, but this little unit worked great and never bogged down! I kept the wheels at the lowest setting the entire time.-..." Read more

"...Yes, you have to go slowly but it handled the sides of the ditch easily...." Read more

"...Lightweight and comfortable for a small woman or even a teen to use (With proper training)." Read more

"...The spring tension holding the deck in the notch is very weak. It’s easy to move, but it pops out of the notch you want and changes pretty much when..." Read more

174 customers mention116 positive58 negative

Customers are mixed about the value of the lawn mower. Some mention it's good for the cost and worth the purchase, while others say it just isn't worth paying extra for the wheels, making it expensive to run. They also mention that the attachment is a waste of money and the replacement spools are expensive and hard to find.

"...All in all it's really cool. Low cost, compact, easy, light, and it works...." Read more

"...Overall, a good budget 3in1 that’ll get the job done without paying 200 dollars for a gas powered push mower" Read more

"...The replacement spools are expensive and getting harder to find...." Read more

"...But it was reasonably priced for what it is." Read more

185 customers mention6 positive179 negative

Customers are dissatisfied with the durability of the lawn mower. They mention that the motor to the casing is not strong, the mowing attachment is a little flimsy, and the mechanism is not anywhere near strong enough to hold the wheels on during any. The mown deck is slightly floppy, and it gives very clean even cutting for small yards. The clipper into the chassis isn't beefy enough, and that the edger kept detaching from the base when cutting the grass.

"...plastic piece that holds the trimmer in the frame is too small and flimsy...." Read more

"...My only complaints are that the mower attachment popped off a few times and the spool it came with ran out in under 15 minutes so I could finish the..." Read more

"...The first and biggest problem is that the 2 pieces come apart too easily while in use...." Read more

"...the trimmer guard and the mower deck you will have a hard time keeping the two attached...." Read more

167 customers mention12 positive155 negative

Customers are dissatisfied with the stability of the lawn mower. They mention that the weed whacker pops off every time they need to turn the mower, the base easily pops out, and the top keeps detaching from the bottom. Some say that the base also kept coming loose.

"...Mine popped out several times. It's not a constant problem, but annoying (like the IRS or DMV).-..." Read more

"...When you pull backwards or upwards the trimmer wants to pop out of the frame...." Read more

"...design is not sturdy enough to hold onto the weed whacker and pops off every time you need to turn the mower...." Read more

"...experience: If it feels slightly wobbly, kind of loose or pulls out too easily... just forget it and try another extension cord plug!..." Read more

Lowest Mower Height Answer:  22 1/2 inches!! :)
5 Stars
Lowest Mower Height Answer: 22 1/2 inches!! :)
Like others, I needed to know the lowest measurement setting from the ground to the operating button with the mower attachment and trimmer in place. For some unknown reason, the community answers seemed to avoid such an easy question for those who owned one?! With that said, I just purchased my own to get that exact answer with a measuring tape.The LOWEST MOWER HEIGHT (from ground to button pressed): 22-1/2 inches.The HIGHEST MOWER HEIGHT (from ground to button pressed): 31-1/2 inches.**Due to my very own physical needs, the lowest height works perfectly for me! Fortunately, I did not have any of the 'troubles' that some have reported with theirs. If it works as it all did with my first use on a small yard today for even a season or two, I would definitely purchase again! Although it does kind of sound like a small shop vac in use, it is absolutely adorable and FUN for me to use. I love it!!It does look like a toy and is nearly identical to vacuuming (with both physical motions & width). So those that are impatient, hate vacuuming or want to look 'manly', may not appreciate this trimmer/mower like I already do. Did I mention that I I love this thing! :)However, as not to wear down the thin and very narrow plastic lip that holds the trimmer into the mower attachment, I personally won't be pressing the trimmer into the mower attachment until it "clicks" per the instructions. Instead, I simply press on the pedal and gently seat the trimmer all the way in before releasing the pedal to lock it in place. Noting again, that's just my own suggested solution to hopefully prevent that thin plastic 'lock' from wearing down so easily, or as I see that it probably could otherwise.Further, the trimmer seems to hold in place just fine when pressing the trimmer handle down to make turns (just like placing the weight on the back wheels to turn a vacuum). To 'lift up' on the trimmer handle when mowing, is when it wants to detach from the mower --so don't do that people lol.Just like every electric tool that I've ever owned, it does NOT come with an extension cord (and it makes me laugh that anyone would expect it to). However, since I wanted an extension cord designated just for this unit, I also purchased what did NOT work --and that was a 50 ft 16AWG Yellow HUANCHAIN brand through Amazon at the same time as well. To my disappointment and even trying to force it further into the plug hole, that extension cord does NOT and will NOT make a tight enough contact to fit but for 'brief' contact spurts. At first, that was a big GRRR there for me because the mower kept cutting out before I realized it was that extension cord that was barely making contact. Okaaay....**Instead though and most fortunate for me, I ended up using my older orange extension cord (that most of us have laying around) that has a slightly narrower plug encasement ... which seats all the way into the plug for continuous contact well and fits perfectly tight! With my recent experience: If it feels slightly wobbly, kind of loose or pulls out too easily... just forget it and try another extension cord plug! You're welcome. LolAgain, before getting super frustrated with the extension cord constantly coming loose from the plug (like I did with the brand new yellow one), you may want to try to find an older style or better fitting extension cord first (even if to take the trimmer to your local hardware store to try one there)!See my extension cord pics as example: Orange (narrower) = Perfect & Tight Fit! Yellow (chubbier) = Frustrating, Loose & Horrible Fit!!Lastly, my reason for purchase: Living in an apartment with a small yard has became just too ridiculous annoying every year to 'wait' for yard maintenance not even mowing until the weeds are almost 18" high and allowing the clippings to just fall where they may for their tenants to just track long grass/weed clippings into our cars and apartments -- I finally had ENOUGH when a thorn weed recently caught my pant leg causing me to trip and fall! With this fun to use, light and nifty little edger/mower that I can enjoy taking care of my yard weekly and all by myself... I won't and NEVER will want such careless "yard maintenance" in or around my yard (or vehicle) again now anyway! I'm not done yet but just after mowing the whole yard once & quickly edging to 'test' it today, my yard already looks way better than it ever has before! I'm HAPPY and very pleased with this fun little B&D trimmer/mower being my new 'toy'!The only reason I'm not including pics of the results with its use on my yard today is due to some privacy concerns but it already looks GREAT! Yet, I hope my lengthy review helps answer some of the questions that I had prior to my having to purchase it to find out for myself anyway. I'm sure glad I did though! I don't enjoy raking so to prevent that, I will just be sure to mow weekly through the growing season because I CAN and will enjoy doing so, too. Just make sure you get a tight fitting extension cord and well then . . . Happy mowing the easy way!! :)
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Top reviews from the United States

Reviewed in the United States on May 7, 2023
Style: Corded Lawn MowerVerified Purchase
Customer image
5.0 out of 5 stars Good electric lawnmower for the price, lightweight, multi-function, does the job well
Reviewed in the United States on May 7, 2023
Pros:
- Easy assembly. Just had to connect shield to weed wacker, lock it in the base, and attach the trimmer/edger handle.
- Light weight, can pick it up with one hand.
- Compact, can be tucked into a small corner.
- Did exceptionally well on my tall grass! Many sections were well over 6 inches. It took a couple times going over, but this little unit worked great and never bogged down! I kept the wheels at the lowest setting the entire time.
- I didn't find it loud at all. Just a typical weed wacker. Definitely not as loud as a gas lawn mower.
- Wheels adjust from about 1-2 inches high if you like your grass a little taller.
- Handle telescopes out approximately 12 inches. If you are really tall this might not be adequate.
- Briefly used the edger, the wheel was a big help, it did the job fine. Haven't tried the trimmer yet.
- Great for a small to medium size yard, limited space for storage, people with arthritis, seniors, disabled, those who can't lift much weight, and want virtually maintenance free! Besides cleaning, you only need to replace the trimmer cord when it runs out.

Cons:
- Weed wacker locking mechanism into base is poorly designed. Mine popped out several times. It's not a constant problem, but annoying (like the IRS or DMV).
- Power cord came out of the loop in the handle numerous times. A spring loaded clamp would be much better.
- Would be nice to have a grass discharge port in the side.
- Sucks having to rake grass afterwards.

Other:
- Some reviewers said it doesn't come with a power cord. My warehouse item said missing cord but I don't recall the box or description saying it is included. You will need an extension cord regardless. Any standard cord plugs into the 2 prong handle fine. This doesn't require an engineering degree folks.
- I bought a warehouse return to save a little money. It was FILTHY! Previous owner did a bad job cleaning it. I've bought many warehouse items, but never had anything this dirty before. I did get a nice discount so I can't complain too much. Also didn't include owners manual. Maybe I can download a PDF from B&D? These are not product cons as none are B&D fault.
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26 people found this helpful
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Reviewed in the United States on October 21, 2023
Style: Corded Lawn MowerVerified Purchase
7 people found this helpful
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Reviewed in the United States on October 18, 2023
Style: Corded Lawn MowerVerified Purchase
2 people found this helpful
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Reviewed in the United States on February 5, 2024
Style: Corded Lawn MowerVerified Purchase

Top reviews from other countries

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Christine H.
5.0 out of 5 stars So far sooooo good
Reviewed in Canada on June 24, 2021
Style: Corded Lawn MowerVerified Purchase
Item as described and good quality
4.0 out of 5 stars Worked great as described
Reviewed in Canada on August 1, 2023
Style: Corded Lawn MowerVerified Purchase
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Item as described and good quality
4.0 out of 5 stars Worked great as described
Reviewed in Canada on August 1, 2023
Worked great as described.

I wish it’d not consume too much thread. Works perfect if run straight back & forth.

The trimmer gets off from the lock mechanism if trying to run sideways and/or running sideways on inclined surfaces.

Otherwise perfect tool for the work mentioned.
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One person found this helpful
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MARU
4.0 out of 5 stars Facilidad de uso
Reviewed in Mexico on July 1, 2023
Style: Corded Lawn MowerVerified Purchase
Francisco J.
5.0 out of 5 stars Es lo máximo
Reviewed in Mexico on November 7, 2023
Style: Corded Lawn MowerVerified Purchase
Jenn
5.0 out of 5 stars Mean little machine.
Reviewed in Canada on July 20, 2021
Style: Corded Lawn MowerVerified Purchase
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Jenn
5.0 out of 5 stars Mean little machine.
Reviewed in Canada on July 20, 2021
I am so glad the negative ratings didn’t deter me from buying this lawnmower 3n1. It packs a great punch for its size. I lawned my backyard lawn and trimmed edges with one of its 3 features in 10 minutes. This is perfect for me it’s so light and easy to hose down after use. Yes the middle did get loose once while using but that because I had tall grass and it all accumulated underneath the blade cover, once you clean it out it stays in place.
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12 people found this helpful
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