BLACK+DECKER Electric Lawn Mower, Weed Eater and Edger 3-in-1 Combo, Corded 12-Inch 6.5 Amp Electric Weed Wacker and Compact Push Mower (BESTA512CM) Review
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The BLACK+DECKER BESTA512CM is a corded electric 3-in-1 combo that combines a 12-inch push mower, a string trimmer (weed eater), and an edger into one affordable package. It’s designed specifically for small to medium-sized lawns (under ¼ acre) and homeowners who want a lightweight, low-maintenance alternative to gas-powered equipment—no mixing fuel, no pulling cords, and no trips to the repair shop.
Who Should Buy This
1. Owners of tiny lawns (under 1/8 acre) – If your yard is more postage stamp than pasture, this 12-inch deck and 6.5-amp motor will cut through it in 20 minutes flat. You won’t feel the cord length as a limitation.
2. First-time homeowners on a budget – At $69, this is one of the cheapest ways to get a functional mower, trimmer, and edger. If you’re furnishing a garage from scratch, the combo saves you from buying three separate tools.
3. Renters or apartment dwellers with a small patch of grass – Lightweight (under 30 pounds for the mower), easy to store in a closet or balcony, and no gas fumes to worry about. The trimmer head also works great for tidying up along fences or flower beds.
4. Homeowners who hate gas cans and carburetors – Plug it in, push a button, and go. No ethanol issues, no stale fuel, no oil changes. If you value simplicity over raw power, this is your machine.
Key Features Breakdown
12-inch cutting deck – This is narrow, even by electric standards. It means more passes across your lawn, but it also makes the mower incredibly maneuverable around tight corners, garden beds, and gates. Best for yards with lots of obstacles.
6.5-amp motor – Adequate for thin to moderate grass on small lawns. It won’t chew through thick St. Augustine or wet, overgrown patches. The motor is geared for light-duty work—think fescue or Bermuda, not jungle.
3-in-1 design (mower, trimmer, edger) – The mower and trimmer share the same motor housing. You swap the wheeled deck for the trimmer head (tool-free, takes about 10 seconds). The trimmer also converts to an edger by rotating the head 90 degrees. It’s clever engineering that saves storage space.
Corded electric – You’re tethered to an outlet, but you get unlimited runtime and consistent power. No battery fade mid-lawn. The cord is 14-gauge (not included), so budget for a heavy-duty extension cord rated for outdoor use.
Single lever height adjustment – One lever moves all four wheels simultaneously to 5 positions (1.5 to 3.5 inches). It’s basic but functional. You won’t get the fine-tuning of a gas mower, but for most small lawns, it’s enough.
Grass catcher bag – A small 0.8-bushel bag. It fills up fast, especially in spring growth. Plan on emptying it every 5-10 minutes on a typical small lawn. You can also mulch with the included plug.
Pros
- Unbeatable price for a 3-in-1 – $69 gets you a mower, trimmer, and edger. Even a basic gas trimmer alone costs more. The value here is real.
- Lightweight and easy to push – The mower weighs about 28 pounds. A child could push it. No struggling up slopes or through damp grass.
- Instant start, no maintenance – Press the switch and go. No choke, no primer bulb, no winterizing. Store it in a shed for months, then plug it in and it fires right up.
- Tool-free conversion – Switching from mower to trimmer takes seconds. No wrenches, no frustration. The edger mode is just a twist of the trimmer head.
- Compact storage footprint – The mower deck is small, and the trimmer head hangs on the handle. It fits in a corner of a garage or even a large closet.
- Quiet operation – At about 85 decibels, you can mow early Saturday morning without waking the neighbors. No earplugs required (though still recommended).
Cons
- Cord management is a hassle – You’ll need a 100-foot 14-gauge extension cord, and you’ll constantly be watching your back to avoid running over it. For larger lawns, the cord becomes a real chore.
- 12-inch deck is very narrow – Expect to make many passes. A 50x50 foot lawn will take 30+ minutes because the cutting width is so small. This mower is for small spaces only.
- Trimmer is underpowered for thick weeds – The same 6.5-amp motor drives the trimmer. It handles light grass along fences, but heavy weeds or thick brush will bog it down. You’ll need a heavier trimmer for serious overgrowth.
- Grass bag is tiny – 0.8 bushels means constant emptying. If you bag clippings, you’ll be stopping every few minutes. Consider mulching instead (the plug is included).
Bottom Line
The BLACK+DECKER BESTA512CM is the perfect solution for anyone with a tiny lawn and a tight budget. It’s not a powerhouse—the narrow deck and small motor are clear limitations—but for under $70, you get a surprisingly capable 3-in-1 system that starts instantly, stores in a closet, and requires zero maintenance. If your yard is under 1/8 acre and you value simplicity over speed, buy this. If you have a larger lawn, thick grass, or hate managing extension cords, look elsewhere.
Frequently Asked Questions
Q: Can I use any extension cord with this mower?
A: No. You need a heavy-duty outdoor extension cord rated for at least 14 gauge (thicker wire). A 16-gauge cord will overheat and trip breakers. Use a 100-foot 14-gauge cord for best results. The mower has a cord retention hook to keep it secure.
Q: How hard is it to switch from mower to trimmer?
A: Very easy. There’s a single release latch on the mower deck. Press it, slide the deck off, and the trimmer head is exposed. Attach the trimmer guard and spool, and you’re done. It takes about 10 seconds once you’ve done it once.
Q: Will this mower handle wet grass or thick Bermuda?
A: Not well. The 6.5-amp motor is best suited for dry, thin to moderate grass. Wet grass will clog the deck and bag quickly. Thick Bermuda or St. Augustine will stall the blade. Stick to dry, light-duty mowing, and keep the
How It Compares
Quick Verdict
The American Lawn Mower Company 1204-14 wins overall for most buyers due to its superior build quality, zero operating costs, and stellar reliability rating across 22,498 reviews—but the BLACK+DECKER BESTA512CM is the better choice if you need a lightweight, corded all-in-one solution for small, overgrown yards.
Side-by-Side Comparison
| Feature | BLACK+DECKER BESTA512CM | American Lawn Mower 1204-14 |
|---|---|---|
| Price | $69.00 | $87.99 |
| Power Source | Corded electric (6.5 amp) | Manual (push reel) |
| Cutting Width | 12 inches | 14 inches |
| Self-Propelled | No | No |
| Best Yard Size | Up to 1/4 acre | Up to 1/3 acre |
| Warranty | 2-year limited | 2-year limited |
Where BLACK+DECKER Wins
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3-in-1 Versatility: The BESTA512CM includes a detachable edger and weed trimmer attachments, saving you from buying separate tools. The mower deck converts to a string trimmer for edges and a wheeled edger for sidewalks—ideal for tight spaces.
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Better for Overgrown Grass: With a 6.5-amp electric motor, this mower can slice through tall, damp, or thick grass that would stall a reel mower. It also mulches clippings, reducing cleanup.
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Lower Upfront Cost: At $69.00, it’s $19 cheaper than the American Lawn Mower. For budget-conscious buyers with small lawns, this is an attractive entry point—especially if you already own an extension cord.
Where American Lawn Mower Wins
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Zero Operating Costs: No electricity, gas, oil, or replacement parts needed. The 1204-14 uses four hardened steel blades that require no sharpening for years. Over a decade, you’ll save $50–$150 compared to the BLACK+DECKER’s electricity and potential cord replacements.
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Superior Build Quality & Longevity: With 22,498 reviews and a 4.3-star rating, this reel mower has proven durability. Its all-steel construction and sealed bearings outlast plastic electric mowers, which often suffer motor or switch failures after 3–5 seasons.
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Healthier Lawn: Reel mowers cut grass with a scissor-like action, resulting in cleaner cuts that heal faster and reduce disease. The 14-inch width also covers more ground per pass than the BLACK+DECKER’s 12-inch deck, cutting mowing time by ~15%.
Which Should You Buy?
Buy Mower A (BLACK+DECKER) if:
- You have a small yard (under 1/4 acre) with overgrown or uneven grass that a reel mower can’t handle.
- You need a single tool that mows, edges, and trims—especially if you’re renting or have limited storage.
- You’re on a tight budget and don’t mind managing an extension cord for 20–30 minutes of mowing.
Buy Mower B (American Lawn Mower) if:
- You want a maintenance-free, long-term investment for a flat, well-maintained lawn up to 1/3 acre.
- You value quiet operation (no motor noise), zero emissions, and exercise while mowing.
- You’re willing to pay $19 more upfront for a tool that lasts decades and costs nothing to run.
Neither?
If your yard exceeds 1/3 acre or has slopes and thick weeds, consider a cordless electric or gas mower instead—both models here are best for small, simple lawns.
Quick Verdict
The BLACK+DECKER BESTA512CM wins for versatility and ease of use, but the LawnMaster LMRM1602 wins for simplicity, eco-friendliness, and cutting precision on small, flat lawns.
Side-by-Side Comparison
| Feature | BLACK+DECKER BESTA512CM | LawnMaster LMRM1602 |
|---|---|---|
| Price | $69.00 | $76.49 |
| Power Source | Corded electric (120V) | Manual (push reel) |
| Cutting Width | 12 inches | 16 inches |
| Self-Propelled | No | No |
| Best Yard Size | Small to medium (up to 1/4 acre) | Small (up to 1/8 acre) |
| Warranty | 2 years (limited) | 2 years (limited) |
Where BLACK+DECKER Wins
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3-in-1 Versatility – This mower doubles as a weed eater and edger, saving you from buying separate tools. The detachable string trimmer and edger attachment make it ideal for trimming along fences, flower beds, and walkways—tasks a reel mower can’t handle.
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Effortless Cutting – The 6.5-amp motor powers through thick grass, weeds, and uneven terrain without needing manual effort. No blade sharpening or muscle power required—just plug in and go. It’s far better for overgrown or damp grass.
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Lighter and More Maneuverable – At roughly 25 lbs (complete with trimmer), it’s easier to push and carry than the LawnMaster (about 35 lbs). Its compact 12-inch deck also fits through narrow gates and tight garden spaces.
Where LawnMaster Wins
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Wider Cutting Path – The 16-inch cutting width is 33% wider than the BLACK+DECKER, meaning fewer passes to mow the same area. For a flat lawn under 1/8 acre, this translates to faster mowing time.
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No Cord, No Fuel, No Noise – As a reel mower, it’s completely cordless, gas-free, and whisper-quiet. You can mow at dawn without disturbing neighbors, and there’s zero operating cost beyond initial purchase. No extension cords to trip over or limit range.
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Healthier Lawn Finish – The 5-blade reel cuts grass with a scissor-like action, leaving a clean, even trim that promotes healthier growth. It’s less likely to tear or shred grass blades (common with rotary mowers), reducing browning and disease risk.
Which Should You Buy?
Buy Mower A (BLACK+DECKER) if:
- Your yard is small to medium (up to 1/4 acre) with mixed terrain, weeds, or uneven patches.
- You need a single tool for mowing, trimming, and edging without buying separate equipment.
- You prefer plug-and-play convenience and don’t mind managing an extension cord.
Buy Mower B (LawnMaster) if:
- Your lawn is small (under 1/8 acre), flat, and well-maintained with fine grass (e.g., Bermuda, fescue).
- You want zero operating costs, zero emissions, and near-silent operation.
- You enjoy the exercise and satisfaction of manual mowing, and you’re willing to sharpen blades periodically.
Neither is ideal if:
- You have a large yard (over 1/4 acre). Both are too narrow and slow—consider a 21-inch self-propelled gas or battery mower.
- You have thick, tall, or wet grass frequently. The LawnMaster will struggle, and the BLACK+DECKER’s 12-inch deck will require many passes.
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🛒 View on Amazon →Last updated: June 2026