---
product_id: 25438411
title: "BLACK+DECKER 20V MAX 12 Inch Weed Eater Cordless String Trimmer and Wheeled Edger Lawn Tool with Spool, 2.5Ah Battery and Charger Included, Lightweight, 2 Speed PowerDrive (LST522)"
price: "$404"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/25438411-black-decker-20v-max-12-inch-weed-eater-cordless-string
store_origin: NZ
region: New Zealand
---

# 2-in-1 trimmer & wheeled edger 50Wh high-capacity battery 2-speed POWERDRIVE torque control BLACK+DECKER 20V MAX 12 Inch Weed Eater Cordless String Trimmer and Wheeled Edger Lawn Tool with Spool, 2.5Ah Battery and Charger Included, Lightweight, 2 Speed PowerDrive (LST522)

**Price:** $404
**Availability:** ✅ In Stock

## Summary

> 🌿 Cut, edge, and conquer your lawn like a pro—no strings attached!

## Quick Answers

- **What is this?** BLACK+DECKER 20V MAX 12 Inch Weed Eater Cordless String Trimmer and Wheeled Edger Lawn Tool with Spool, 2.5Ah Battery and Charger Included, Lightweight, 2 Speed PowerDrive (LST522)
- **How much does it cost?** $404 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/25438411-black-decker-20v-max-12-inch-weed-eater-cordless-string)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless 2-in-1 Versatility:** Effortlessly switch from string trimming to precise edging with the built-in wheel for flawless lawn borders.
- • **Tailored Performance Control:** Choose between two speeds to maximize runtime or boost torque for tackling thick grass and weeds.
- • **Uninterrupted Trimming Power:** AFS Automatic Feed Spool means no bumping—just continuous, smooth cutting action every time.
- • **Long-Lasting, Compatible Battery:** 20V MAX lithium-ion battery delivers 66% more runtime and works seamlessly across your BLACK+DECKER tool system.
- • **Ergonomic Comfort for Extended Use:** Adjustable height and soft-grip handle reduce fatigue, keeping you in control and comfortable.

## Overview

The BLACK+DECKER 20V MAX Cordless String Trimmer and Edger combines powerful 2-speed torque with a versatile 2-in-1 design, featuring an automatic feed spool for continuous trimming and a high-capacity 50Wh lithium-ion battery that offers 66% longer runtime. Lightweight and ergonomically designed with adjustable height and a soft-grip handle, it delivers professional-grade lawn care with effortless comfort and compatibility across BLACK+DECKER’s 20V MAX tool lineup.

## Description

The BLACK+DECKER 20V MAX* 12 in. cordless string trimmer/edger gives you total control over your landscaping projects, like managing overgrowth, edging your lawn, creating borders, and more. Its versatile design lets you convert it from a string trimmer to a wheeled edger with ease. The AFS AUTOMATIC FEED SPOOL continuously feeds the trimmer line, so you’ll never have to stop and bump the trimmer. Use the 2-speed control to boost power when you need it most. The POWERDRIVE transmission increases torque, so you can cut through tough weeds and grass without fatiguing, and the adjustable height and soft-grip handle provide added comfort while you work. Plus, the 20V MAX* lithium ion battery is compatible with other tools within the system for complete convenience. *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18 volts.

Review: Excellent/User Friendly Trimmer - My neighbor recently convinced me to purchase this trimmer. For the past 9 yrs I’ve been using a Husqvarna 4cycle trimmer which is very powerful and has performed great. But I needed a trimmer that could be used to form a nice demarcation between the concrete and grass…and also around flower beds. I would have to tilt my Husqvarna to achieve this but due to it’s design it would leave a “sloped” edge. This Black and Decker performs beautifully. The built-in wheel makes all the difference in the world as well as the ability to tilt the trimmers head (by turning the handle). The wheel helps stabilize the trimmer so that you can get a nice, neat edge and it even does very well around curves. It’s also much lighter than my other trimmer…very easy on the upper body. I have only used it once (today) but was so impressed I wanted to write this review. My neighbor has had his for years and it’s still going strong….so I’m not to worried about durability. If you need a trimmer for cutting down really tall grass or saplings, then a heavier duty model (like my Husqvarna) is probably what you should purchase. But for normal use, this trimmer will be just fine. I may even purchase an extra one just as a back up in case this model is ever discontinued (hopefully not). One more thing…it would be a good idea to go ahead and get an extra battery as back up. Hope this review helps.
Review: I love it. - Works well. Light weight.

## Features

- 2in1 DESIGN – Easily converts from a cordless string trimmer to a wheeled edger for versatile use..Watt Hours:50.
- AFS AUTOMATIC FEED SPOOL– Continuously feeds the trimmer line, which means no bumping for seamless, uninterrupted trimming.
- POWERDRIVE TRANSMISSION– Delivers increased torque for greater string power and cutting action in thicker grass and weeds.
- 2-SPEED CONTROL– Choose between more power or extended runtime.
- ADJUSTABLE HEIGHT AND SOFT-GRIP HANDLE – Provide convenient, customizable comfort and control for extended use.
- HIGH-PERFORMANCE BATTERY – LBXR2520 20V MAX* lithium ion battery provides 66% more battery capacity for a longer runtime (compared to LBXR20) and is compatible with other tools within the system.
- INCLUDES: (1) LST522 20V MAX* cordless trimmer/edger, (1) LBXR2520 extended-runtime lithium ion battery, (1) 20V MAX* charger, (1) AFS spool, (1) guard.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #16,878 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #20 in String Trimmers |
| Customer Reviews | 4.4 out of 5 stars 6,318 Reviews |

## Product Details

- **Brand:** BLACK+DECKER
- **Power Source:** Battery Powered
- **Color:** Multi
- **Item Weight:** 5.7 Pounds
- **Cutting Width:** 12 Inches

## Images

![BLACK+DECKER 20V MAX 12 Inch Weed Eater Cordless String Trimmer and Wheeled Edger Lawn Tool with Spool, 2.5Ah Battery and Charger Included, Lightweight, 2 Speed PowerDrive (LST522) - Image 1](https://m.media-amazon.com/images/I/61sAqoDMoqL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is there a difference between the model # lste525 and the lst 522 weed eaters besides the 525 having 2 batteries?**
A: Yes, the LSTE525 has the EASY FEED button which releases spool with a touch of a button, while the LST522 has an AFS spool which releases line periodically automatically.

**Q: Do it come with battery and charger**
A: Yes, the LST522 includes one battery and one charger.

**Q: Can i use any black and decker 20 volt battery for lst522 trimmer?**
A: Yes.  That is what I am doing.  I bought the Black & Decker 20 volt Drill and Flashlight combo a while back.  The combo only came with one battery.  Then I bought the trimmer with two 20 volt batteries.  They interchange beautifly.
I actually called B&D before I purchased the trimmer to ask this question.  Good luck.

**Q: Can you reload your own line or do you have to buy the preloaded spools?**
A: I have always bought the bulk pack and loaded it myself.  Just make sure it's .065 ROUND line!  (That's what's specified in the manual.)  Wind it snugly, and in the right direction, and you should have no problem.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent/User Friendly Trimmer
*by A***R on August 7, 2022*

My neighbor recently convinced me to purchase this trimmer. For the past 9 yrs I’ve been using a Husqvarna 4cycle trimmer which is very powerful and has performed great. But I needed a trimmer that could be used to form a nice demarcation between the concrete and grass…and also around flower beds. I would have to tilt my Husqvarna to achieve this but due to it’s design it would leave a “sloped” edge. This Black and Decker performs beautifully. The built-in wheel makes all the difference in the world as well as the ability to tilt the trimmers head (by turning the handle). The wheel helps stabilize the trimmer so that you can get a nice, neat edge and it even does very well around curves. It’s also much lighter than my other trimmer…very easy on the upper body. I have only used it once (today) but was so impressed I wanted to write this review. My neighbor has had his for years and it’s still going strong….so I’m not to worried about durability. If you need a trimmer for cutting down really tall grass or saplings, then a heavier duty model (like my Husqvarna) is probably what you should purchase. But for normal use, this trimmer will be just fine. I may even purchase an extra one just as a back up in case this model is ever discontinued (hopefully not). One more thing…it would be a good idea to go ahead and get an extra battery as back up. Hope this review helps.

### ⭐⭐⭐⭐⭐ I love it.
*by J***E on January 9, 2026*

Works well. Light weight.

### ⭐⭐⭐⭐ Nice unit, but poor user's manual
*by H***D on November 4, 2025*

The unit itself is very nice. Seems sturdily built and is lightweight. Adjustable length works well and locks securely. I question the need for two speed control, but their claim is the lower speed saves battery power. I am not sure how much of a difference it makes and changing speeds in use is not very intuitive. A better choice would be an in between speed which is permanent to get better cutting and a little longer battery life. My annoyance comes from the lack of much information about the "automatic line feed" and how it operates. The fact is, the user's manual is bare bones for user information. The booklet is small, is divided into three languages, and all of the "icon" diagrams to explain things are so small you need a magnifying glass. I wanted to know what triggers the line feed, how it knows to lengthen it, and how it knows to stop feeding. None of that information is in the book or on the Black and Decker website videos. Aside from that, the unit is built well and should be durable. It is a good value for the money.

## Frequently Bought Together

- BLACK+DECKER 20V MAX Cordless String Trimmer and Edger with Spool, Battery and Charger Included, 2 Speed, 12 Inch (LST522)
- 10 Pack Weed Eater String Compatible with Black+Decker, AF-100 0.065" Weed Wacker String Refill 240ft Automatic Feed String Trimmer Replacement Spool Line for Black&Decker(8 Spool+2 Cap+2 Spring)
- YWTESCH 10 Pack AF-100 Replacement Spool Line for Black+Decker - 0.065" Weed Eater String Trimmer Line Spool, 30ft Autofeed Weed Wacker Spool Refill for Black+Decker(8 Spool,2 Cap,2 Spring)

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**Shop now:** [https://www.desertcart.nz/products/25438411-black-decker-20v-max-12-inch-weed-eater-cordless-string](https://www.desertcart.nz/products/25438411-black-decker-20v-max-12-inch-weed-eater-cordless-string)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-07*