LawnMaster CLMF4819X 19-inch Brushless Cordless Lawn Mower with 2X24V MAX 4.0Ah Battery and a Dual Charger 6 Cutting Position Review

★★★★ 4/5 (4275 reviews)
$197.99
Brand: LawnMaster
LawnMaster CLMF4819X 19-inch Brushless Cordless Lawn Mower with 2X24V MAX 4.0Ah Battery and a Dual Charger 6 Cutting Position
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Overview

The LawnMaster CLMF4819X is a 19-inch brushless cordless mower that runs on two 24V MAX 4.0Ah batteries, delivering gas-like power without the fumes or pull-start hassle. It’s built for homeowners with small to medium lawns—think under 1/3 acre—who want a lightweight, low-maintenance machine that stores upright and starts instantly. With six cutting positions and a dual charger included, it aims to be the no-nonsense electric option for budget-conscious buyers who still want decent runtime and cut quality.

Who Should Buy This

  • Suburban homeowners with 1/4-acre or smaller lawns – The 19-inch deck and dual-battery system give you about 30–40 minutes of runtime, perfect for a quick weekly trim without dragging a cord.
  • First-time electric mower converts – If you’re tired of gas, oil, and carburetor cleaning, this is a low-cost entry point. The brushless motor means less wear, and the push-button start is foolproof.
  • Homeowners with narrow gates or tight storage – At roughly 35 pounds and a foldable handle, this mower slides into a shed corner or closet. No gas can smell, no spilled fuel.
  • Budget-focused shoppers who don’t need premium frills – At $198, it undercuts most name-brand cordless mowers. You get a decent battery setup and a reliable cut for the price, not a zero-turn experience.

Key Features Breakdown

19-Inch Steel Deck – A 19-inch deck is narrower than standard 21-inch models, which means more passes on a large lawn but better maneuverability in tight flower beds and along fences. The steel deck is durable and won’t crack like some plastic decks, though it adds a bit of weight.

Brushless Motor – Brushless motors are more efficient and last longer than brushed motors because there are no carbon brushes to wear out. This translates to more torque for cutting thick grass and better battery life per charge. You’ll notice it doesn’t bog down as much in damp or overgrown grass compared to cheaper brushed mowers.

2 x 24V MAX 4.0Ah Batteries + Dual Charger – The two batteries run in series to deliver 48V total power. Each is 4.0Ah, so you get a combined 8.0Ah capacity. The dual charger tops both at once in about 2 hours. Real-world runtime is about 30–40 minutes on a full charge, which covers most small lawns. The batteries are slide-on style and compatible with other LawnMaster 24V tools.

6 Cutting Positions (1.5–3.75 inches) – Six height adjustments give you fine control over cut length. The lever is on the wheel—not a single central handle—so you adjust each wheel individually. It’s a bit more work than a single-lever system, but it lets you set different heights for uneven terrain or a striped lawn look.

Single Lever Height Adjustment on Each Wheel – Each wheel has its own lever with six notches. It’s simple and durable, but expect to bend down four times to change all wheels. For the price, it’s a fair trade-off.

20-Inch Turning Radius – The front wheels swivel, making this mower surprisingly nimble around trees and garden beds. You won’t need to do extra back-and-forth trimming in tight corners.

Pros

  1. Excellent value for the price – At under $200, you’re getting a brushless motor, two batteries, and a dual charger. Comparable name-brand setups often run $350–$500.
  2. Lightweight and easy to push – At about 35 pounds, it’s one of the lightest cordless mowers in its class. Anyone can push it up a gentle slope without strain.
  3. Instant start, no gas or oil – Push the button and go. No priming, no choking, no winterizing. Perfect for folks who want to mow and forget.
  4. Good cut quality on Bermuda and fescue – The blade is sharp from the factory, and the brushless motor keeps RPMs consistent. It leaves a clean, even finish on typical home lawns.
  5. Compact storage – The handle folds flat with no tools required. It stands upright on its rear bumper, so it takes up very little floor space.
  6. Dual battery runtime is sufficient for small lawns – Two 4.0Ah batteries give you a solid 30–40 minutes, enough for a standard 1/4-acre lot. If you need more, buy a spare set—but most users won’t.

Cons

  1. Plastic wheel adjusters feel flimsy – The height adjustment levers are made of thin plastic. They work, but they don’t inspire confidence if you’re cranking them down hard. A few users report them breaking after a season.
  2. No bag full indicator – The 1.5-bushel grass catcher is on the smaller side, and you have to stop and peek inside to see if it’s full. On damp grass, it fills fast and clogs easily.
  3. Batteries take 2 hours to charge – While the dual charger is convenient, 2 hours is slow compared to some newer chargers that do it in 60 minutes. If you forget to charge, you’ll be waiting.
  4. Narrow deck means more passes – At 19 inches, you’ll make about 10% more passes than with a 21-inch mower. Not a dealbreaker for small lawns, but noticeable on a 1/3-acre lot.

Bottom Line

The LawnMaster CLMF4819X is the right choice if you have a small lawn (under 1/3 acre), want to ditch gas, and don’t want to spend more than $250. It’s not the most rugged or feature-packed mower out there—the plastic adjusters and slow charger are real compromises—but the brushless motor, dual battery setup, and light weight make it a solid value. For the price, it’s hard to beat. If your lawn is bigger or you want a single-lever height adjustment, spring for a higher-end model. But for the weekend mower who just wants a clean cut without the hassle, this is a smart buy.

Frequently Asked Questions

Q: How long do the batteries last on a full charge? A: Expect about 30–40 minutes of continuous mowing on a full charge with both batteries. That covers roughly 1/4 acre of typical grass. If your grass is thick or damp, runtime drops to 25–30 minutes. You can buy extra 24V 4.0Ah batteries from LawnMaster to extend the session.

Q: Can I use the mower without the grass catcher? A: Yes. It has a rear mulch plug included, so you can mulch clippings back into the lawn. There’s also a side discharge

How It Compares

Here is a head-to-head comparison of the LawnMaster CLMF4819X (cordless electric) versus the American Lawn Mower Company 1815-18 (reel mower).

Quick Verdict

The American Lawn Mower Company 1815-18 wins for value and reliability on small, flat yards, but the LawnMaster CLMF4819X wins for convenience and power on larger or uneven terrain.

Side-by-Side Comparison

Feature LawnMaster CLMF4819X American Lawn Mower 1815-18
Price $197.99 $141.98
Power Source Cordless Electric (2x 24V MAX 4.0Ah batteries) Manual (Push Reel)
Cutting Width 19 inches 18 inches
Self-Propelled? No (push only) No (push only)
Best Yard Size Up to 1/3 acre (battery limited) Up to 1/4 acre (effort limited)
Warranty 2-year limited (battery/charger often shorter) Limited lifetime (steel frame & reel)

Where LawnMaster Wins

  1. Cutting Power & Versatility: The LawnMaster’s brushless motor and 19-inch cutting deck handle tall, thick, or damp grass that would stall or clog a reel mower. It has 6 cutting positions (1.5–4 inches), allowing you to adjust for different grass types and seasons—reel mowers typically offer fewer, lower height settings.
  2. Convenience & Speed: With dual 24V 4.0Ah batteries and a dual charger, you get runtime for a typical suburban lot without cords or gas. Electric start is instant; no pulling a cord or sharpening blades. It also mulches, bags, or side-discharges—the reel mower only leaves clippings on the lawn.
  3. Better for Uneven or Weedy Lawns: The LawnMaster can roll over small bumps, sticks, and thicker weeds without skipping or pulling grass. Reel mowers require a smooth, flat lawn to cut cleanly; they scalp bumps and miss low spots.

Where American Lawn Mower Wins

  1. Price & Long-Term Cost: At $141.98, it’s $56 cheaper upfront. More importantly, it has zero ongoing costs—no batteries to replace (each 4.0Ah battery costs ~$50–70), no electricity, and no gas or oil. The steel reel can be sharpened or replaced cheaply, whereas battery packs degrade in 2–4 years.
  2. Durability & Simplicity: With 22,498 reviews and a 4.3-star rating, this is a proven, nearly indestructible design. The steel frame and 5-blade reel have few failure points—no motors, switches, or chargers to break. The limited lifetime warranty on the frame beats the LawnMaster’s 2-year coverage.
  3. Cleanest Cut for Healthy Grass: A sharp reel mower cuts grass like scissors (shearing), not like a rotary blade (tearing). This reduces leaf fraying, promotes faster recovery, and leaves a manicured, striped finish. For Bermuda or Zoysia lawns mowed weekly, this produces a golf-course look the LawnMaster cannot match.

Which Should You Buy?

  • Buy Mower A (LawnMaster) if you have a medium-sized yard (up to 1/3 acre) with thick, tall, or uneven grass, or if you want the flexibility to bag leaves or adjust cutting height easily. It’s also better if you’re not willing to mow every 4–5 days—rotary mowers handle overgrowth better.

  • Buy Mower B (American Lawn Mower) if you have a small, flat, and well-maintained lawn (under 1/4 acre), prioritize zero operating costs and long-term durability, or want the healthiest, most manicured cut possible. It’s also ideal for eco-conscious buyers seeking a silent, emission-free mower that doubles as light exercise.

  • Buy neither if your yard exceeds 1/3 acre or has steep slopes—the LawnMaster’s battery may die mid-mow, and the reel mower will be exhausting. In that case, consider a gas or self-propelled electric model.

Quick Verdict

The Greenworks 40V 16" wins overall for reliability, brand trust, and long-term value, but the LawnMaster CLMF4819X is the better budget pick for larger flat lawns needing a wider cut.

Side-by-Side Comparison

Feature LawnMaster CLMF4819X Greenworks 40V 16"
Price $197.99 $249.99
Power Source 2x24V MAX (48V total) 4.0Ah 40V 4.0Ah
Cutting Width 19 inches 16 inches
Self-Propelled No No
Best Yard Size Up to 1/2 acre Up to 1/3 acre
Warranty 2-year limited 4-year limited

Where LawnMaster Wins

1. Wider cutting deck (19 inches vs. 16 inches)
The LawnMaster’s 19-inch deck saves time on medium to large lawns, reducing passes by nearly 19% compared to the Greenworks. For a 5,000 sq ft yard, that’s roughly 5–7 fewer minutes per mow.

2. Dual battery system (2x24V 4.0Ah = 8.0Ah total capacity)
The LawnMaster comes with two 4.0Ah batteries, offering 8.0Ah of total runtime. This typically delivers 45–60 minutes of continuous cutting, enough for up to 1/2 acre. The Greenworks’ single 4.0Ah battery provides about 30–40 minutes, limiting it to smaller yards.

3. Lower price with more battery capacity
At $197.99, the LawnMaster is $52 cheaper than the Greenworks and includes twice the total amp-hour capacity. For budget-conscious buyers who prioritize runtime and deck width, this is a clear value advantage.

Where Greenworks Wins

1. Superior brand reputation and customer satisfaction
With 11,946 reviews and a 4.2-star rating (vs. 4,275 reviews and 4.0 stars), the Greenworks has a much larger, more consistent track record. Owners report fewer defects, better customer support, and longer product lifespans.

2. Longer warranty (4 years vs. 2 years)
Greenworks doubles the warranty period, signaling higher confidence in durability. The LawnMaster’s 2-year warranty is standard for budget models but offers less protection against motor or battery failure over time.

3. 75+ tool battery compatibility
The Greenworks 40V battery works with over 75 tools (trimmers, blowers, chainsaws, etc.). If you already own Greenworks 40V gear, this mower is a seamless add-on. The LawnMaster’s 24V system is proprietary and less expandable.

Which Should You Buy?

Buy Mower A (LawnMaster) if:

  • You have a flat lawn between 1/4 and 1/2 acre and want the fastest cut time for the lowest price.
  • You need maximum runtime from a single charge (dual battery setup).
  • You’re on a tight budget and prioritize width and battery capacity over brand longevity.

Buy Mower B (Greenworks) if:

  • You have a smaller yard (under 1/3 acre) and value reliability, warranty, and customer support.
  • You already own Greenworks 40V tools or plan to build a battery-powered tool family.
  • You prefer a proven, highly-reviewed model with a 4-year warranty and a lower risk of early failure.

Neither mower is ideal if:
You need self-propulsion for hilly terrain—both are push-only. For slopes, consider the Greenworks 40V 16-inch self-propelled model (~$329) or the LawnMaster self-propelled 19-inch (~$269).

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Last updated: June 2026