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The LawnMaster CLMF4821A is a cordless, brushless 48V MAX lawn mower featuring a powerful 3400 RPM motor and dual 4.0Ah lithium-ion batteries for up to 48 minutes of runtime. Its 21-inch cutting deck supports 3-in-1 functionality—bagging, mulching, and side discharge—with six adjustable cutting heights. Lightweight and compact, it includes an intelligent power management display and a large 15-gallon grass catcher, making it ideal for small to medium yards seeking efficient, eco-friendly lawn care.









































| ASIN | B0DXV8R98R |
| Best Sellers Rank | #26,486 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #75 in Walk-Behind Lawn Mowers |
| Brand Name | LawnMaster |
| Color | Orange |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,334) |
| Cutting width | 20 Inches |
| Item Dimensions D x W x H | 35"D x 22"W x 15"H |
| Item Type Name | Cordless Lawn Mower |
| Item Weight | 44 Pounds |
| Manufacturer | Cleva |
| Material Type | Plastic |
| Maximum Adjustable Cutting Height | 3.4 Inches |
| Minimum Adjustable Cutting Height | 1.4 Inches |
| Model Number | CLMF4821A |
| Number of Positions | 6 |
| Operation Mode | Automatic |
| Power Source | Battery Powered |
| Style Name | 21-Inch with 4 battery |
N**N
Great mower for small yards but be sure both batteries are fully charged before mowing.
The price on this battery mower was great and I then I noticed Amazon had a returned mower from which turned out to be a brand new mower without the original box. I chose this mower after watching several UK reviews on Youtube. This version of the mower does not have rear roller and only one cutoff switch on the handle but everything else is about the same. The mower is great for a yard that is no larger than the size of a tennis court. Using this mower, I was able to perform a very short lawn scalp this spring and found the mower to perform as well as my old gas mower at this task. The plastic grass catcher works very good and the mower is able to pick up all the leaves blown over from my neighbor's trees. Emptying the grass catcher is easy and I like that it does not collect dust like a cloth grass catcher. The mower is small, light weight, and very quiet. It is very easy to pick up the mower using the handle attached to the base and carrying it from the front to back yard. The small narrow mower also makes it much easier to store in the garage with the cars. Because the mower is so small, you will have to make more passes than with a wider mower. More steps if you are tracking that. Once again, this mower is good for a small yard but not a larger yard. Changing the mower height adjust is so easy. The mower comes with 2 batteries and one charger. The batteries take 9 hours each to charge so be sure both batteries are charged before starting. The batteries have a indicator so it is easy to check the battery level. Even though my yard is small, it still take both batteries if I want to mow the front, back and side yard on the same day. A lot of this mower is made of plastic which makes it feel like a toy. The wheel covers on the mower keep popping out they but don't come off and don't affect how the wheels roll. After 5 mows, I find this mower to be great for my lawn and it has already paid for itself by not having to go with a lawn service.
S**B
Works great!!
The mower arrived in a smallish box, which was surprising to me, but the mower is still a good sized mower. The mower itself was very lightweight and the instructions were very easy to understand is putting the handle together and preparing the mower for use. I charged the batteries for their first use as per the instructions and they were ready to go quickly. I was able to mow my front yard and quite a large portion of my back yard with one battery and was able to almost finish my larger back yard with the other battery. I did allow the batteries to cool down prior to charging and they recharged quickly. I bought an extra battery and with all 3 I am able to completely mow my whole yard. I do like the bagger and the easy way to take it off and empty it as needed. The mower is very quiet and easy to push for me. It is small and compact, but you never feel that it is cheaply constructed. I feel it is a good quality mower for the money. I suggest that for the life of the batteries and mower in general that using in the later part of the day keeps it from getting too hot and the batteries seem to last longer than when used in the heat of the day. All in all it is great mower and well worth the money.
B**B
Perfect for smaller lawns
LawnMaster CLM2413A Cordless 13-Inch Lawn Mower Review Pros: Easy Assembly: Clear instructions make setup quick and hassle-free. Perfect for Small Jobs: Ideal for navigating tight corners and narrow strips of grass. Cordless Convenience: Provides excellent mobility without being tethered to an outlet. Lightweight and Maneuverable: Easy to handle, especially in hard-to-reach areas around flower beds, fences, and other obstacles. Impressive Cut Quality: Leaves a clean, even finish with adjustable height settings for customization. Compact Storage: Takes up minimal space in the garage, making it convenient for those with limited storage. Cons: Battery Life: Adequate for smaller jobs, but larger yards might require a second battery for uninterrupted use. It does come with 2 batteries. Small Cutting Deck: The 13-inch cutting width means more passes are needed for larger areas, which might be less efficient for big lawns. Conclusion: The LawnMaster CLM2413A Cordless 13-Inch Lawn Mower seems a reliable, compact solution for small jobs and hard-to-reach spots that larger mowers can't handle. Its ease of assembly, though the grass catcher is a bit difficult, its lightweight design, and impressive performance make it an excellent addition to any garden tool collection. If you need a mower for tricky areas and smaller lawns, this is a fantastic choice.
B**K
Works great. Batteries last fairly long. Lightweight. Very easy to unload cut grass and really like the mulching. Would definitely recommend this purchase.
M**N
Light, easy to maneuver and does a good job. Having 2 batteries is great!
P**.
Like the weight and comfort probably better with 14" to 16" blade as had to recharge when 80% done. Good machine though it does a good cut.
D**E
Après 3 utilisations ne fonctionne plus.....même si les batteries sont pleines!!????!
L**A
I am a 70 yr old gramma who loves this lawnmower. So light and easy to use. Couldnt do the gas lawnmower....too heavy! Definitely would recommend!
Trustpilot
4 days ago
2 months ago