---
product_id: 748634634
title: "Trimmer 21 V 4.0AH Lithium Ion Battery，For Weelun Vivianus Garden Brush Cutter Grass Trimmers"
brand: "weelun"
price: "434.43 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Wee Lun"
url: https://www.desertcart.tn/products/748634634-trimmer-21-v-4-0ah-lithium-ion-battery-for-weelun
store_origin: TN
region: Tunisia
---

# 21V powerful lithium-ion voltage 4000mAh high-capacity battery Compatible with Weelun Vivianus trimmers Trimmer 21 V 4.0AH Lithium Ion Battery，For Weelun Vivianus Garden Brush Cutter Grass Trimmers

**Brand:** weelun
**Price:** 434.43 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your garden hustle with unstoppable energy!

## Quick Answers

- **What is this?** Trimmer 21 V 4.0AH Lithium Ion Battery，For Weelun Vivianus Garden Brush Cutter Grass Trimmers by weelun
- **How much does it cost?** 434.43 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/748634634-trimmer-21-v-4-0ah-lithium-ion-battery-for-weelun)

## Best For

- weelun enthusiasts

## Why This Product

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

## Key Features

- • **Easy Swap & Go:** Quick installation means less downtime and more time mastering your garden’s look
- • **Seamless Compatibility:** Designed specifically for Weelun Vivianus brush cutters for perfect fit and optimal output
- • **Durability Meets Quality:** Premium materials guarantee longevity and reliable performance season after season
- • **High-Voltage Performance:** 21V lithium-ion battery delivers consistent, powerful energy for tough garden tasks
- • **Long-Lasting Power Boost:** 4000mAh capacity ensures extended trimming sessions without interruption

## Overview

The WeeLun 21V 4.0AH Lithium Ion Battery is a high-capacity, durable replacement battery designed for Weelun Vivianus Garden Brush Cutter Grass Trimmers. Featuring a robust 4000mAh capacity and 21V voltage, it ensures long-lasting, powerful performance to keep your outdoor power equipment running efficiently. Engineered for easy installation and reliable use, this battery is a must-have upgrade for any serious gardener looking to maximize productivity and minimize downtime.

## Description

Product description WeeLun Trimmer 21 V 4.0AH Lithium Ion Battery，For Weelun Vivianus Garden Brush Cutter Grass Trimmers Safety Warning Wear safety glasses and gloves during use. Keep bystanders at a safe distance. Do not operate near flammable materials. Always unplug or remove battery before cleaning or storing.

Review: Fantastic Price and Great Quality - Fantastic Price and Great Quality long Battery life and so Easy to use
Review: Good value; works well. - Great value and so much better than the nylon cord strimmers.

## Features

- [HIGH CAPACITY] Battery Type: Lithium-ion | Voltage: 20-21V | Capacity: 4000mAh | capacity batteries are made with high quality material to ensure superior performance and longevity, making them an ideal replacement for your old or damaged batteries

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CDGYH9N5 |
| Assembly required | Yes |
| Best Sellers Rank | 42,486 in DIY & Tools ( See Top 100 in DIY & Tools ) 263 in Cordless Tool Battery Packs |
| Brand | WeeLun |
| Brand Name | WeeLun |
| Colour | Black |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 260 Reviews |
| Is Assembly Required? | Yes |
| Item Dimensions L x W | 140L x 13W centimetres |
| Manufacturer | WeeLun |
| Manufacturer Part Number | HBQ21A |
| Model Number | WCST775NY-1 |
| Number of Batteries | 2 Unknown batteries required. (included) |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Product dimensions | 140L x 13W centimetres |
| Speed | 11000 RPM |
| Style Name | WCST775NY-1 x 2 battery 2.5 |
| Unit Count | 9.0 gram |

## Product Details

- **Assembly required:** Yes
- **Brand:** WeeLun
- **Colour:** Black
- **Number of batteries:** 2 Unknown batteries required. (included)
- **Power source:** Battery Powered
- **Product dimensions:** 140L x 13W centimetres
- **Speed:** 11000 RPM
- **Style:** WCST775NY-1 x 2 battery 2.5

## Images

![Trimmer 21 V 4.0AH Lithium Ion Battery，For Weelun Vivianus Garden Brush Cutter Grass Trimmers - Image 1](https://m.media-amazon.com/images/I/413ZzBm2CTL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic Price and Great Quality
*by E***B on 1 May 2026*

Fantastic Price and Great Quality long Battery life and so Easy to use

### ⭐⭐⭐⭐ Good value; works well.
*by S***G on 30 December 2025*

Great value and so much better than the nylon cord strimmers.

### ⭐⭐⭐⭐⭐ Powerful
*by C***Y on 29 April 2026*

Does the job really well. Lightweight easy to change blades, did the paths on my allotment easily. Changed to saw blade took out some woody weeds with ease. Battery indicator didn't move after over half hour. Impressive

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**Shop now:** [https://www.desertcart.tn/products/748634634-trimmer-21-v-4-0ah-lithium-ion-battery-for-weelun](https://www.desertcart.tn/products/748634634-trimmer-21-v-4-0ah-lithium-ion-battery-for-weelun)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-11*