---
product_id: 723750727
title: "LawnMaster CLMF4821A Cordless Lawn Mower Brushless 48V MAX* 21Inch 3-in-1 Function Up to 1/2 Acre with 4X24V MAX* 4.0Ah Battery and a Dual Charger"
brand: "lawnmaster"
price: "22218992₫"
currency: VND
in_stock: true
reviews_count: 8
category: "Lawn Master"
url: https://www.desertcart.vn/products/723750727-lawnmaster-clmf4821a-cordless-lawn-mower-brushless-48v-max-21inch-3
store_origin: VN
region: Vietnam
---

# 3400 RPM brushless power 3-in-1 bag, mulch & side discharge 48V MAX dual 4.0Ah batteries LawnMaster CLMF4821A Cordless Lawn Mower Brushless 48V MAX* 21Inch 3-in-1 Function Up to 1/2 Acre with 4X24V MAX* 4.0Ah Battery and a Dual Charger

**Brand:** lawnmaster
**Price:** 22218992₫
**Availability:** ✅ In Stock

## Summary

> 🌱 Cut the Cord, Not Your Style — Power Meets Precision in Every Push!

## Quick Answers

- **What is this?** LawnMaster CLMF4821A Cordless Lawn Mower Brushless 48V MAX* 21Inch 3-in-1 Function Up to 1/2 Acre with 4X24V MAX* 4.0Ah Battery and a Dual Charger by lawnmaster
- **How much does it cost?** 22218992₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/723750727-lawnmaster-clmf4821a-cordless-lawn-mower-brushless-48v-max-21inch-3)

## Best For

- lawnmaster enthusiasts

## Why This Product

- Trusted lawnmaster brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Power Management:** iPower Technology Display optimizes battery use and keeps you informed with real-time mode and charge status.
- • **Unleash Cordless Power:** 3400 RPM brushless motor delivers gas-like performance without the fumes or maintenance.
- • **Tailor Your Lawn’s Look:** 6 adjustable cutting heights from 1.4 to 3.4 inches for a perfectly customized trim every time.
- • **Versatile 3-in-1 Functionality:** Switch effortlessly between bagging, mulching, or side discharge to suit your lawn care style.
- • **Double the Runtime, Double the Freedom:** Includes 4 lithium-ion batteries and a dual charger for up to 48 minutes of uninterrupted mowing.

## Overview

The LawnMaster CLMF4821A is a high-performance cordless lawn mower featuring a powerful 3400 RPM brushless motor and a 21-inch cutting deck. Equipped with four 24V MAX 4.0Ah lithium-ion batteries and a dual charger, it offers up to 48 minutes of runtime, perfect for lawns up to half an acre. Its 3-in-1 cutting system allows bagging, mulching, or side discharge, while six adjustable cutting heights provide customizable lawn care. The intelligent iPower Technology Display ensures efficient battery management, making this mower a maintenance-free, eco-friendly alternative to gas-powered models.

## Description

desertcart.com : LawnMaster CLMF4821A Cordless Lawn Mower Brushless 48V MAX* 21Inch 3-in-1 Function Up to 1/2 Acre with 4X24V MAX* 4.0Ah Battery and a Dual Charger : Patio, Lawn & Garden

Review: Works well - Wasn't sure how this lawnmower was going to be. It's battery powered . Received it late so it took me awhile before I could use it. The lawn had already been cut . Fast forward to its use. This thing is a beast . I was using a corded lawn mower. It was good, but wanted something that I didn't have to worry about keeping the cord out of the way . Well .... I'm glad a bought this lawnmower. It's a great tool. I get the lawn cut so much faster now. It uses 2 included batteries. They are powerful and get my small lawn cut with plenty of energy left and in record time . I totally recommend this lawnmower. I've now used it twice . NOTE : It's weird trying to get the push bar unfolded and connected The pieces don't always line up as they should. Also, it has a weird start up to power the mower . You must hold the lever back, then push the button on the side to start . Also, it has a grass catcher. The lower rear flap on the mower can impede the grass catcher from collecting the cut grass. That flap is not removable. Place the grass catcher over the prongs that look like something is supposed to slide into them and on top of that lower flap . Enjoy.
Review: See above - Lightweight and easy to control. Cuts very. well

## Features

- POWERFUL PERFORMANCE: Tackle your yard with up to 3400-RPM of power and no gas or oil to maintain
- CORDLESS FREEDOM: Powered by two 24V MAX* 4.0Ah lithium-ion batteries, with an additional two 24V MAX* 4.0Ah lithium-ion batteries included in the box, delivering up to 48 minutes of runtime while the bag collects 15 gallons of grass clippings
- iPOWER TECHNOLOGY DISPLAY: Save energy and gain efficiencies while mowing your lawn with this intelligent and automatic power management system. Display indicates the cutting mode and battery level.
- 3-IN-1 FUNCTION: Mower includes options for bagging, side discharge or mulching
- CUSTOMIZE YOUR CUT: Effortlessly change the height of your cut with 6 cutting positions varying between 1.4-inches and 3.4-inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DXV8R98R |
| Assembly Required | Yes |
| Best Sellers Rank | #272,081 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #277 in Walk-Behind Lawn Mowers |
| Brand | LawnMaster |
| Color | Orange |
| Customer Reviews | 3.8 3.8 out of 5 stars (22) |
| Cutting Width | 20 Inches |
| Item Weight | 44 pounds |
| Item model number | CLMF4821A |
| Manufacturer | Cleva |
| Material | Plastic |
| Maximum Adjustable Cutting Height | 3.4 Inches |
| Minimum Adjustable Cutting Height | 1.4 Inches |
| Operation Mode | Automatic |
| Power Source | Battery Powered |
| Product Dimensions | 35"D x 22"W x 15"H |
| Style | 21-Inch with 4 battery |

## Product Details

- **Assembly Required:** Yes
- **Brand:** LawnMaster
- **Color:** Orange
- **Cutting Width:** 20 Inches
- **Item Weight:** 44 Pounds
- **Material:** Plastic
- **Operation Mode:** Automatic
- **Power Source:** Battery Powered
- **Product Dimensions:** 35"D x 22"W x 15"H
- **Style:** 21-Inch with 4 battery

## Images

![LawnMaster CLMF4821A Cordless Lawn Mower Brushless 48V MAX* 21Inch 3-in-1 Function Up to 1/2 Acre with 4X24V MAX* 4.0Ah Battery and a Dual Charger - Image 1](https://m.media-amazon.com/images/I/71CE+bUbcEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well
*by F***R on December 17, 2025*

Wasn't sure how this lawnmower was going to be. It's battery powered . Received it late so it took me awhile before I could use it. The lawn had already been cut . Fast forward to its use. This thing is a beast . I was using a corded lawn mower. It was good, but wanted something that I didn't have to worry about keeping the cord out of the way . Well .... I'm glad a bought this lawnmower. It's a great tool. I get the lawn cut so much faster now. It uses 2 included batteries. They are powerful and get my small lawn cut with plenty of energy left and in record time . I totally recommend this lawnmower. I've now used it twice . NOTE : It's weird trying to get the push bar unfolded and connected The pieces don't always line up as they should. Also, it has a weird start up to power the mower . You must hold the lever back, then push the button on the side to start . Also, it has a grass catcher. The lower rear flap on the mower can impede the grass catcher from collecting the cut grass. That flap is not removable. Place the grass catcher over the prongs that look like something is supposed to slide into them and on top of that lower flap . Enjoy.

### ⭐⭐⭐⭐⭐ See above
*by D***U on December 17, 2025*

Lightweight and easy to control. Cuts very. well

### ⭐⭐⭐⭐ Works as good as the ego that I borrowed at half the price
*by W***R on April 1, 2025*

Now, this is the first time out of the box. Sharp blade fully charged batteries first cut of the year. High weeds in places, regular law in the other places. Blah blah blah wet grass. Did a good job without a hitch balked a few times but that's because I was going 90 to nothing batteries seem to last okay, turn red fast but I had it on auto, which I don't think is a very good. Setting because it runs at full blast where I put it on low and it's still cut fine.I did have to back up and lift the blade up to let the extra wet grass fall out.But other than that, I'm very pleased so far.You don't have to look in the bottom.Extra batteries unblade before they disappear I like the single lever high adjustment.I like how the I can't be sad discharged.Shoot, if not using it, you can clamp it under the handle bars to keep it where you can find it again.The handlebars are multi adjustable.So that's fantastic ego one's not as adjustable as this one Heads up on after using it 3 times I'm only getting Average 21 minutes per battery charge With mower set. on low.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-23*