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Black & Decker BESTA512CM 12 in. 3-in-1 Compact Electric Lawn Mower

  • Black & Decker BESTA512CM 12 in. 3-in-1 Compact Electric Lawn Mower
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Mow, trim, and edge with this 12 in. 3-in-1 Compact Electric Lawn Mower. Its powerful 6.5 amp motor with POWERDRIVE transmission handles tough weeds and overgrowth with ease. Mow the lawn, then detach the mower deck to use it as a string trimmer. Finish the job by rotating the trimmer head to use it as an edger. Automatic Feed Spool and a lightweight design with adjustable handle make it easy and comfortable to get lawn care done.
  • Easily converts from mower to trimmer to edger for 3 tools in 1
  • The 6.5 amp motor and POWERDRIVE Transmission provide maximum performance when trimming through the toughest weeds, grass, and overgrowth
  • Automatic Feed Spool (AFS) lets you continue working without bumping or having to stop to adjust the spool
  • Lightweight design with adjustable handle and height positions provide maximum comfort and control
  • Cord retention system prevents accidental cord disconnection
  • String Trimmer - BESTA512
  • Detachable Mower Deck - MTD100
  • Spool - AF-100
  • Auxillary Handle
  • Guard
Compliance and Restrictions
warning: Cancer and Reproductive Harm --


Weight: 9.9 lbs.
Amperage: 6.5
Batteries Included: 0
Bluetooth Compatibility: No
Case Included: Yes
Case Type: Bag
Cutting Height (Max.): 2.4 in
Cutting Height (Min.): 1.6 in
Cutting Path: 12 in
Motor Type: Brushed
Mulching Capability: No
Powered Tool Power Source: Electric - Corded
Starter Type: Electric
Voltage: 120V
Wifi compatibility: No



4.2 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Clever set up. Just keep it clean.
This is a great idea. I now can cut, weed wack, and edge without the hassle of going back in the shed for different tools. The base comes off too easily if I don’t keep grass out of the connection points, but that’s been manageable so far.
June 25, 2019
Originally posted at
Perfect for the job
I have a small yard I mean small. Takes more time to start my mower then it does to just mow the grass. It's perfect and does a extremely outstanding job.
June 6, 2019
Originally posted at
Seriously my favorite yard tool now! Love it. Perfect.
I love this mower/trimmer. I have a very rocky, sticky, hilly, (aka crappy) yard. This thing does the trick better than any other mower I have tried. The trimmer does come out of the base sometimes but you just pop it back in and it's fine. I got the plug-in kind because I didn't want to deal with running out of battery power, etc. I am happy that I did because it never dies. No more messing around with gas and oil, no more stinky fumes, no more pulling my arm out of the socket to start the darn thing. The only thing you need to buy for this baby is some spools of the trimmer string, press the button and you're mowing. It is actually more like vacuuming your yard! Super easy and even a little fun considering I really hated mowing with a traditional mower. The blade mowers always cut too low and messed up my already sparse grass because of the hills. This sweet little puppy just glides smoothly and leaves the top level of soil in tact for a nicer looking mow. It is very light weight as well. Cuts through my weeds like butter, mows right over the rocks, stumps, and sticks without skipping a beat. Seriously, get it. I love mine.
May 26, 2019
Loved this but did not hold up
Black and Decker woyuld not allow me to post my original review because their system would not post it because it said it had profanity in it. It did not - I guess your APP doesn't work either. I did not and would not post such a thing, the mower would not stay connected to the base after a few uses
August 27, 2018
Originally posted at
Just right for small jobs.
I bought this to mow my small backyard. I have only used it once so far but it’s a tough little machine. It even took care of the long grass
that hasn’t been mowed in a while. It just takes longer because the cutting radius is just the size of a weed eater.
July 18, 2018
Originally posted at
The right tool for the right job
I got this last year and couldn't do without it. I have a bank that is steep enough that mowing with my lawn mower could land me in the ditch. This is a lot safer and easier than fighting the mower. Without the wheels it is a powerful string trimmer and although the cord takes getting used to I can do all the edging and trimming along the fence and house at one time. With my smaller trimmer I need two batteries to just barely do the same amount of work and/or have to wait for batteries to charge.
April 2, 2018
Originally posted at

Questions & Answers

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Can this cut grass 1/8 inch so I can make a putting green?
Eric F on Jun 9, 2019
BEST ANSWER: Your question will be best answered by the manufacturer, who can provide you with the accurate information. The number to reach the technician is 1-800-544-6986.
Are batteries available for purchase with this mower?
A shopper on Apr 12, 2019
BEST ANSWER: No, this item is a corded mower. The item will not need any batteries.