---
product_id: 45680063
title: "4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 & LST522 LHT2220 LST300 20-Volt Max Cordless Power Tools (2-Pack)"
brand: "biswaye"
price: "€ 67.25"
currency: EUR
in_stock: true
reviews_count: 8
category: "Biswaye"
url: https://www.desertcart.sk/products/45680063-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black-decker
store_origin: SK
region: Slovakia
---

# 20V max power output 4.0Ah high capacity Built-in overcharge protection 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 & LST522 LHT2220 LST300 20-Volt Max Cordless Power Tools (2-Pack)

**Brand:** biswaye
**Price:** € 67.25
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your productivity, never miss a beat!

## Quick Answers

- **What is this?** 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 & LST522 LHT2220 LST300 20-Volt Max Cordless Power Tools (2-Pack) by biswaye
- **How much does it cost?** € 67.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/45680063-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black-decker)

## Best For

- biswaye enthusiasts

## Why This Product

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

## Key Features

- • **Double the Value:** 2-pack rechargeable lithium-ion batteries keep you powered up and ready to go.
- • **Risk-Free Upgrade:** Backed by a 30-day money-back guarantee and 1-year warranty for total peace of mind.
- • **Smart Safety Tech:** Integrated microchip prevents overcharging, ensuring battery longevity and safety compliance.
- • **Seamless Compatibility:** Works flawlessly with Black & Decker 20V Max tools—no hassle, just power.
- • **Power Through Your Projects:** 4.0Ah capacity delivers long-lasting energy for uninterrupted work sessions.

## Overview

The Biswaye 4.0Ah 20V Lithium Battery 2-pack is a high-capacity, rechargeable replacement compatible with Black & Decker 20V Max cordless tools. Featuring built-in overcharge protection and compliance with FCC, RoHS, and CE standards, these batteries deliver reliable power and safety. Perfect for professionals and DIYers alike, they come with a 30-day money-back guarantee and 1-year warranty, ensuring a risk-free upgrade to your cordless toolkit.

## Description

Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 & LST522 LHT2220 LST300 20-Volt Max Cordless Power Tools (2-Pack) - desertcart.com

Review: So far great quality - Bought these after my 5 or 6 year old factory Black and Decker batteries for my weed whip wouldn't hold a charge anymore. I've used these new ones a handful of times and they allow me to walk all over my few acre yard taking care of edges and borders again. I don't continuously use them, rather walk from tree to tree or cleaning up around various flower beds and buildings. They charge perfectly fine with the original black and decker charger that came with my weed whip. Glad to be able to take care of everything in my yard again. Good buy for the price from what i'm seeing at this time.
Review: Great price - Love the new batteries. They do take quite a while to charge. Like that I got two for a great price.

## Features

- Compatible replacement for Black & Decker 20V MAX lithium batteries - LB20, LBX20, LBX4020, LB2X4020, LBXR20-OPE, LBXR2520, LBXR2020, LB2X3020-OPE
- Powers Black & Decker 20V MAX cordless tools including trimmer, blower, drill, weed wacker - LST201, LST220, LST300, LST522, LSTE525, LSW221, LSW321, LCC221, LHT2220
- Built-in microchip prevents overcharging; Complies with FCC, RoHS and CE safety standards
- 2-pack rechargeable lithium-ion batteries offer 4000mAh capacity and 20V output
- 30-day money back guarantee and 1-year warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071KW8D4X |
| Batteries | 2 Lithium Ion batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Capacity | 4 Amp Hours |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #129,844 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,183 in Cordless Tool Battery Packs |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,162) |
| Date First Available | March 22, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 2 |
| Item Weight | 8 ounces |
| Item model number | LBXR20 |
| Manufacturer | CXAB |
| Material | ABS |
| Number Of Pieces | 2 |
| Part Number | BDK-LBXR20-2 |
| Pattern | 2Pack 20V 2.5Ah compatible with Black&Decker |
| Power Source | Recharge Battery-Powered |
| Product Dimensions | 5.12 x 3.74 x 2.75 inches |
| Shape | Square |
| Size | 4.0Ah |
| Style | LBXR20 20V Max Battery (2Pack) |
| Voltage | 20 Volts |
| Wattage | 50 watts |

## Product Details

- **Battery Capacity:** 4 Amp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** Biswaye
- **Number of Batteries:** 2 Lithium Ion batteries required. (included)

## Images

![4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 & LST522 LHT2220 LST300 20-Volt Max Cordless Power Tools (2-Pack) - Image 1](https://m.media-amazon.com/images/I/61NHLHtuqrL.jpg)

## Questions & Answers

**Q: Can this battery fit on the ldx120c model?**
A: Yes.
 I see ldx120c is a 20-Volt MAX Lithium-Ion Cordless Drill/Driver, our this battery is a 20v lithium battery. So they can work with each.

**Q: Will the 2.0 work with an replace the 1.5?**
A: Sure, if they are 20v black & decker 20v lithium battery. They are compatiable with each.

**Q: Dear Seller, 4AH sounds like nonsense.  What is the configuration and type of battery cells inside this battery pack?**
A: I do not know what the inside configuration is.
I have these batteries. They last longer than any of the other batteries that I have.  Bought 2 and they worked so well I bought 2 more.

**Q: will this work on B&D weed eaters?**
A: They work just fine in my Black & Decker LST 300 Type 1 string trimmer. They are 20 volt.

## Customer Reviews

### ⭐⭐⭐⭐⭐ So far great quality
*by J***D on July 11, 2024*

Bought these after my 5 or 6 year old factory Black and Decker batteries for my weed whip wouldn't hold a charge anymore. I've used these new ones a handful of times and they allow me to walk all over my few acre yard taking care of edges and borders again. I don't continuously use them, rather walk from tree to tree or cleaning up around various flower beds and buildings. They charge perfectly fine with the original black and decker charger that came with my weed whip. Glad to be able to take care of everything in my yard again. Good buy for the price from what i'm seeing at this time.

### ⭐⭐⭐⭐⭐ Great price
*by A***R on July 30, 2024*

Love the new batteries. They do take quite a while to charge. Like that I got two for a great price.

### ⭐⭐⭐⭐ Decent replacement
*by G***R on July 9, 2025*

Why did you pick this product vs others?: After about six or seven years of use, the original batteries for my Black & Decker weed whacker finally got to the point that they wouldn't hold a charge for very long. I purchased these and am happy to report they fit both the tool and the charger, however, one of the batteries isn't holding a good charge. It lasts about as long as one of the better original batteries after fully charged. I haven't tried the other one yet, but I noticed even the two original batteries held charges differently, so I'm happy enough.

## Frequently Bought Together

- Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 & LST522 LHT2220 LST300 20-Volt Max Cordless Power Tools (2-Pack)
- Biswaye LCS1620B Charger Compatible with Black and Decker 20V Lithium Battery Charger, Compatible with Black & Decker 20V Max Lithium-ion Battery LBXR20 LBXR20-OPE2 LBXR2020-OPE LB2X3020-OPE LB2X4020
- 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 Slovakia*
*Store origin: SK*
*Last updated: 2026-01-26*