LawnMaster CLMF4819A Review
The Lightest Cordless Mower, With a Battery Warning
The LawnMaster CLMF4819A is the lightest cordless mower in our top ten at 37.6 lbs, which suits anyone who finds a gas mower too heavy to handle. Battery warranty runs 1 year, the shortest here, so budget about $100.00 for replacement packs every couple of seasons.
The verdict
Weight is the reason to look at the LawnMaster CLMF4819A. At 37.6 lbs it is the lightest mower in our top ten by several pounds, and at $239.99 it is the cheapest. Both those numbers come with consequences, and we will be straight about them.
Rated 4.0 stars from 3,542 reviews. The star rating is the lowest here and so is the distribution quality, with 14 percent of reviews at one star, roughly double every other mower we researched.
The best accessibility review in our research
One review on this page is worth reading in full before you buy anything cordless. A senior woman with chronic pain and weakness compared the LawnMaster directly against her self-propelled gas mower.
Fifteen minutes on the gas mower before she felt like she might collapse. Over thirty minutes on the LawnMaster, and she tired before the batteries did. She covers about a sixth of an acre per charge walking quickly.
Her best observation is about pulling rather than pushing. The LawnMaster moves backwards and forwards like a vacuum, where dragging a self-propelled gas mower backwards was painful. Sixty eight people found her review helpful.
She adds two things that are easy to overlook. The mower can be stored indoors, and it is quiet enough to hear birds while mowing. Her warning is equally fair: you cannot treat them roughly or you will break them.
The battery problem, documented
Pablo H wrote a glowing review and then came back to update it, which is the most useful thing on the page.
After two seasons and only 15 to 20 uses, his batteries lasted about 5 minutes on a full charge. LawnMaster support told him the battery warranty is 1 year only. Rather than spend over $120.00 on replacements, he bought a Greenworks instead, specifically because it carries a 3 year battery warranty. Eighty six people found that review helpful.
Worth weighing against the price. Replacement MX24V 4.0Ah batteries are $49.99 each, so two is $99.98, and a replacement blade is also $49.99. Spending $100.00 on batteries every two seasons is not unreasonable on a $239.99 mower, provided you go in knowing.
Boz measured his as it aged: 40 minutes on the first charge, 39 on the second, slightly less on the third. His summary is honest and worth borrowing. If it lasts two years, he is way ahead. KatieDid, who is over 70, docked a star purely because she is not confident about durability.
Where it beats mowers that cost more
Three in one cutting, including side discharge, is a real advantage. The Sun Joe and the SKIL both lack a side chute, and that is exactly what causes their tall grass clogging.
One owner switched from a 21 inch Greenworks and found the LawnMaster left no missed strips, where the Greenworks would cut out when it sensed it was approaching taller grass. sue2u does a 5,000 sq ft lot on one charge with no recharge, and reports the batteries arrived nearly full and topped off in 10 minutes.
Read the review count carefully
Worth knowing: the 3,542 reviews are pooled across variants and even across product lines. One five star review is for a corded LawnMaster, a different machine entirely. Others are for the 15 inch and 17 inch models.
Treat 4.0 from 3,542 as a family rating for LawnMaster cordless mowers rather than a verdict on this exact model.
LawnMaster also disagrees with its own listing. The title says 19 inch and their comparison table says 18 inch. The listing says 37.6 lbs and the table says 33 lbs. Neither gap changes the recommendation, but it reflects the general standard of published specs in this category.
Who should buy it
Buy it if weight is the deciding factor. Nothing else here is as easy to push, and for anyone moving off a heavy gas mower that matters more than runtime figures.
Skip it if you want five years of service without buying batteries. A 1 year battery warranty next to EGO three years tells you exactly where the risk sits, and the Sun Joe at $299.99 covers both batteries for two years with a 2 year extension available.
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What stands out
- The lightest mower here, and the one accessibility reviewers rate highest
- Three in one cutting including side discharge, which the Sun Joe and SKIL lack
- iPower display shows cutting mode and battery level
- Quiet enough to hear birds while mowing
- $239.99, and replacement batteries and blades are only $49.99 each
What to watch
- The battery warranty is 1 year, the shortest of any mower here
- One owner saw runtime fall to about 5 minutes after two seasons and 15 to 20 uses
- Fourteen percent of reviews are one star, roughly double the rest of our lineup
- The 3,542 review count is pooled across variants and even a corded model
- LawnMaster own figures disagree with the listing on both cut width and weight
Full specification
| Cutting width, inches | 19 |
|---|---|
| Voltage | 48V from two 24V MAX batteries |
| Battery included | Two 24V MAX 4.0Ah, dual charger |
| Runtime, minutes | 40 |
| Charge time | Batteries arrive nearly full and top off in about 10 minutes |
| Cutting heights | 1.4 to 3.4 inches, 6 positions |
| Drive | Push |
| Grass bag capacity | 15 gallon |
| Mulching | Yes, 3 in 1 with side discharge |
| Weight, lbs | 37.6 |
| Suits lawns up to | Up to 5,000 sq ft |
| Warranty | Battery warranty is 1 year |
Buy it if
Weight is your deciding factor, or you want to spend as little as possible to get off a gas mower.
Skip it if
You want the mower to last five years without buying batteries. A 1 year battery warranty against EGO three years tells you where the risk sits.
Questions people ask
How long does the LawnMaster CLMF4819A battery last?
LawnMaster claims up to 40 minutes and one owner measured 40 on the first charge, 39 on the second and slightly less on the third. Amazon's own summary notes the split, with some owners getting about 40 minutes and others reporting 20.
How long will the LawnMaster batteries last before needing replacement?
Less than most. One owner found runtime down to about 5 minutes after two seasons and only 15 to 20 uses, and LawnMaster support told him the battery warranty is 1 year. Replacement batteries are $49.99 each, which softens the blow.
Is the LawnMaster good for someone with limited strength?
Better than anything else we looked at. One reviewer with chronic pain compared it against her self-propelled gas mower directly. Fifteen minutes on the gas mower left her feeling like she might collapse. Over thirty minutes on this one and she tired before the batteries did.
How big a lawn can the LawnMaster handle?
About 5,000 sq ft on one charge, per an owner who does exactly that with no recharge. A reviewer walking quickly covers roughly a sixth of an acre per charge.
Is the 3,542 review count accurate for this mower?
Not for this specific model. Reviews are pooled across the 15, 16 and 17 inch versions, and at least one five star review is for a corded LawnMaster, a completely different machine. Treat the figure as a family rating.
