---
product_id: 311996727
title: "BLACK+DECKER 20V MAX Cordless String Trimmer, 12 Inch Steel Blade, Reduced Vibration, Battery and Charger Included (LST300)"
brand: "black+decker"
price: "€ 190.04"
currency: EUR
in_stock: true
reviews_count: 5
category: "Black+Decker"
url: https://www.desertcart.ie/products/311996727-black-decker-20v-max-cordless-string-trimmer-12-inch-steel
store_origin: IE
region: Ireland
---

# 2-in-1 trimmer to edger conversion in seconds 33% more runtime with 2.0Ah lithium-ion battery POWERDRIVE transmission for faster cutting BLACK+DECKER 20V MAX Cordless String Trimmer, 12 Inch Steel Blade, Reduced Vibration, Battery and Charger Included (LST300)

**Brand:** black+decker
**Price:** € 190.04
**Availability:** ✅ In Stock

## Summary

> 🌿 Cut the cord, not your weekend plans!

## Quick Answers

- **What is this?** BLACK+DECKER 20V MAX Cordless String Trimmer, 12 Inch Steel Blade, Reduced Vibration, Battery and Charger Included (LST300) by black+decker
- **How much does it cost?** € 190.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/311996727-black-decker-20v-max-cordless-string-trimmer-12-inch-steel)

## Best For

- black+decker enthusiasts

## Why This Product

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

## Key Features

- • **Comfort-First Design:** Lightweight with adjustable handle and height for fatigue-free control.
- • **Effortless Line Feed:** AUTOMATIC FEED SPOOL keeps your line ready—no bumping required.
- • **Dual-Mode Versatility:** Switch seamlessly between trimming and edging to perfect your lawn’s look.
- • **Power Meets Precision:** POWERDRIVE tech delivers efficient motor power for faster, cleaner cuts.
- • **Extended Runtime, Less Downtime:** 33% longer battery life means more trimming, less charging.

## Overview

The BLACK+DECKER 20V MAX Cordless String Trimmer features a 12-inch steel blade powered by a 2.0Ah lithium-ion battery offering 33% more runtime than previous models. Its POWERDRIVE transmission ensures efficient power delivery for faster cutting, while the AUTOMATIC FEED SPOOL technology eliminates manual line bumping. Easily convert between trimming and edging modes in seconds, all within a lightweight, ergonomically adjustable design that maximizes comfort and control. Battery and charger included, part of the versatile 20V MAX system.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: There's a lot to like about this little trimmer. It's relatively lightweight, easy to use, and has enough power for a cordless to make you not regret buying it. The packaging nests the charger out of sight inside what might first be mistaken as just a piece of cardboard to hold the handle secure in the to of the box. If you're not looking for it, you might toss out the battery charger with the box - so keep that in mind. The battery is supposed to take 5 hours to charge from nothing, but I think it only took about 3 hours - either way, you probably won't be using it out of the box. Assembly instructions are provided, but it was so straight forward, I didn't bother reading them, and had it pieced together inside five minutes. You'll need a Phillips screwdriver for a single screw. After I charged it up, I went out to attack the weeds that had been growing unchecked for the last month, and was pleased at the performance. It was able to chew through four foot tall thistles (with a bit of work - they *are* nasty, fibrous, sons of guns if you let 'em grow) with out much trepidation - and could eat through normal grass in a single, unyielding pass. I picked mine up for $85 in June 2018, so my review reflects that price point. Seller shipped quickly, and all arrived as it ought to have. I'd recommend this for anyone who wants to ditch the cord, or the noise (and heft) of a gas powered trimmer.
Review: Nice and light little tool. Takes 5 hours to charge the battery and one the first charge it only lasted 20 mins. Second charge just over 30. Hoping it will increase a bit more. Buy a replacement nylon when you order as the one with the product is super short. Oh and this is imported from the US so you need a step-down converter as well. Kind of working out expensive!

## Features

- Includes (1) 2.0 Amp hour lithium ion battery pack for 33% more runtime per battery pack than our previous LBXR20 battery pack
- The POWERDRIVE Transmission delivers more power from the motor to the cutting string so you can get the job done faster
- The AUTOMATIC FEED SPOOL - AFS automatically feeds trimmer line when needed with no bumping required
- 2-in-1 Trim or Edge - easily converts from trimmer to edger in seconds
- It is quiet and easy to start, delivering great cutting results without the mess and hassles of gas powered trimmers
- Lightweight design with adjustable handle and height positions provide maximum comfort and control
- Part of the 20V MAX System - A System that Demands Attention. 1 Battery fits multiple tools (maximum initial battery voltage (measured without a workload) is 20 volts - nominal voltage is 18)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00HH4K4HQ |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Customer Reviews | 4.4 4.4 out of 5 stars (8,923) |
| Date First Available | 20 Dec. 2013 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Department | Unisex-Adult |
| Item display height | 5.83 inches |
| Item display length | 37.67 inches |
| Item display weight | 3.2 kg |
| Item display width | 9.25 inches |
| Item model number | LST300 |
| Manufacturer | Black & Decker Outdoor |
| Part number | LST300 |
| Power source type | Battery Powered |
| Product Dimensions | 21.59 x 12.19 x 92.2 cm; 2.59 kg |

## Product Details

- **Assembly required:** No
- **Brand:** BLACK+DECKER
- **Colour:** Orange, Black
- **Cutting width:** 12 Inches
- **Item weight:** 2.59 kg
- **Number of batteries:** 1 Lithium Ion batteries required. (included)
- **Pattern:** Solid
- **Power source:** Battery Powered
- **Product dimensions:** 92L x 21.6W centimetres
- **Speed:** 6200 RPM

## Images

![BLACK+DECKER 20V MAX Cordless String Trimmer, 12 Inch Steel Blade, Reduced Vibration, Battery and Charger Included (LST300) - Image 1](https://m.media-amazon.com/images/I/211joyho+mL.jpg)
![BLACK+DECKER 20V MAX Cordless String Trimmer, 12 Inch Steel Blade, Reduced Vibration, Battery and Charger Included (LST300) - Image 2](https://m.media-amazon.com/images/I/31feZfeUZML.jpg)
![BLACK+DECKER 20V MAX Cordless String Trimmer, 12 Inch Steel Blade, Reduced Vibration, Battery and Charger Included (LST300) - Image 3](https://m.media-amazon.com/images/I/416R9WHAJ6L.jpg)
![BLACK+DECKER 20V MAX Cordless String Trimmer, 12 Inch Steel Blade, Reduced Vibration, Battery and Charger Included (LST300) - Image 4](https://m.media-amazon.com/images/I/41T4iEXl4hL.jpg)
![BLACK+DECKER 20V MAX Cordless String Trimmer, 12 Inch Steel Blade, Reduced Vibration, Battery and Charger Included (LST300) - Image 5](https://m.media-amazon.com/images/I/510bIEJxz6L.jpg)

## Questions & Answers

**Q: If you ran it wide open, how long will it run until a recharge is needed?**
A: About 15 minutes max. And do not recharge it while the battery is hot.

**Q: Is this trimmer very heavy...I am 5 ft. tall and cannot handle trimmers that are for people who are taller, and if it is overly heavy.**
A: The length of the trimmer is adjustable and is not heavy.

**Q: Does this come with line string to start you off or do you need to purchase this separately?**
A: It comes with minimal string - I'd say maybe 3 ft. on the spool.  There's a pack of three on Amazon - a generic brand - for @$10.  Just get those when you order.

**Q: Does the LST300 come with batery and charger?**
A: yes it does come with both...handy little tool, light weight & does a great job. the batteries don't last long, but my fence row has grown tremendously because my other died, but still great tool. takes app. 4 hrs to completely recharge. I also boutght an extra charger + battery. helps a lot.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***. on 21 June 2018*

There's a lot to like about this little trimmer. It's relatively lightweight, easy to use, and has enough power for a cordless to make you not regret buying it. The packaging nests the charger out of sight inside what might first be mistaken as just a piece of cardboard to hold the handle secure in the to of the box. If you're not looking for it, you might toss out the battery charger with the box - so keep that in mind. The battery is supposed to take 5 hours to charge from nothing, but I think it only took about 3 hours - either way, you probably won't be using it out of the box. Assembly instructions are provided, but it was so straight forward, I didn't bother reading them, and had it pieced together inside five minutes. You'll need a Phillips screwdriver for a single screw. After I charged it up, I went out to attack the weeds that had been growing unchecked for the last month, and was pleased at the performance. It was able to chew through four foot tall thistles (with a bit of work - they *are* nasty, fibrous, sons of guns if you let 'em grow) with out much trepidation - and could eat through normal grass in a single, unyielding pass. I picked mine up for $85 in June 2018, so my review reflects that price point. Seller shipped quickly, and all arrived as it ought to have. I'd recommend this for anyone who wants to ditch the cord, or the noise (and heft) of a gas powered trimmer.

### ⭐⭐⭐ Review
*by K***R on 21 March 2017*

Nice and light little tool. Takes 5 hours to charge the battery and one the first charge it only lasted 20 mins. Second charge just over 30. Hoping it will increase a bit more. Buy a replacement nylon when you order as the one with the product is super short. Oh and this is imported from the US so you need a step-down converter as well. Kind of working out expensive!

### ⭐⭐⭐⭐⭐ Review
*by R***. on 25 October 2025*

Great for an average yard , home, business etc. It’s light but not flimsy. Easy to trim around. patio, landscape etc. The autofeed string works well and not wasteful. The battery provides more than enough power and time . I have 4 of the batteries and a charger. I also use them on the other Black and Decker stuff I have. Sander and reciprocating saw. No gas, no cords .Sturdy and saves time and money.

## Frequently Bought Together

- BLACK+DECKER 20V MAX Cordless String Trimmer, 2 in 1 Trimmer and Edger, 12 Inch, Battery Included (LST300)
- 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)
- 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)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-02*