---
product_id: 645595668
title: "4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 LBX4020 and LST522 LHT2220 LST300 20-Volt Max Tools (2-Pack)"
brand: "biswaye"
price: "€ 144.32"
currency: EUR
in_stock: true
reviews_count: 5
category: "Biswaye"
url: https://www.desertcart.pt/products/645595668-4-0ah-20v-lithium-battery-lbxr20-compatible-with-black-decker
store_origin: PT
region: Portugal
---

# 20V max power output 4000mAh 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 LBX4020 and LST522 LHT2220 LST300 20-Volt Max Tools (2-Pack)

**Brand:** biswaye
**Price:** € 144.32
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay charged, stay unstoppable with Biswaye 20V Power Duo!

## Quick Answers

- **What is this?** 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V Max Battery LBXR2520 LBXR2020 LB2X3020 LBX20 LB2X4020 LBX4020 and LST522 LHT2220 LST300 20-Volt Max Tools (2-Pack) by biswaye
- **How much does it cost?** € 144.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/645595668-4-0ah-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 Power:** 2-pack bundle means you’re always charged and ready—never let a dead battery slow you down.
- • **Smart Safety Tech:** Integrated microchip prevents overcharging, ensuring battery longevity and your peace of mind.
- • **Seamless Compatibility:** Works flawlessly with a wide range of Black & Decker 20V MAX tools—no hassle, just power.
- • **Trusted Quality & Warranty:** Complies with FCC, RoHS, CE standards and backed by a 1-year warranty plus 30-day money-back guarantee.
- • **Power Through Your Projects:** 4000mAh capacity delivers long-lasting energy for uninterrupted work sessions.

## Overview

The Biswaye 4.0Ah 20V Lithium Battery (2-pack) is a premium replacement for Black & Decker 20V MAX batteries, offering 4000mAh capacity and 20V output. Compatible with a broad range of Black & Decker cordless tools, it features built-in overcharge protection and meets FCC, RoHS, and CE safety standards. Perfect for professionals and DIYers seeking reliable, long-lasting power with a 1-year warranty and 30-day money-back guarantee.

## Description

Pattern Name:2 Pack Biswaye 20V 4.0Ah Lithium Ion Battery Compatible with Black & Decker About Biswaye:Biswaye products are made with the highest quality materials. All Biswaye battery packs comply with FCC CE and RoHS security testing standards.As a professional manufacturer of power tool batteries and chargers, Biswaye specializes in designing and manufacturing varieties of power tool batteries and chargers with high quality.Product Details : Battery Capacity: 4000mAh Battery Voltage: 20V Battery Type: Li-ion Condition: Brand New Compatible with Black and Decker 20V Lithium Battery: LBXR20, LB20, LBX20, LBXR2020-OPE, LBXR20B-2, LB2X4020, LBXR20BT 20V MAX String Trimmer / Edger and Sweeper LCC221, LCC222, LST300, LSTE525, LSTE523, LST201, LST522/LST522E1AEV, LST120, LST220, LSW20, LSW221, LSW321, BCBL700D1, LDX120SB etc.20V MAX Hedge Trimmer LHT2220/LHT2220B, LPHT120/LPHT120B, LHT321FF etc.20V MAX Impact Driver BDCI20C etc.20V MAX Drill Driver LDX120C, LDX220C, LD120VA, LDX120PK, BCD702C1AEV, BCD702C1, BDCDD12C, BDC120VA100, BDCDMT120/BDCDMT120C etc.20V MAX Cordless Circular Saw BDCCS20B etc.20V MAX Jig Saw BDCJS20B etc.20V MAX Cordless Reciprocating Saw Kit BDCR20C etc.20V MAX Cordless Chainsaw LCS1020/LCS1020B, LLP120/LLP120B etc.20V MAX Power Tillers LGC120 etc.20V MAX Pole Saw LPP120 etc.20V MAX Cordless Power Tools LHT120, LSW120, LCS120, CHH2220, EPL188KB, SSL20SB, SSL20SB-2, ASL186K, ASL188K, MTC220 etc.Package Include: 2-Pack * Biswaye 4.0Ah 20V Lithium Battery LBXR20 Compatible with Black and Decker 20V MAX Lithium Battery, Compatible with Black & Decker 20V MAX Cordless Power Tools

Review: 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: 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 |
| Best Sellers Rank | #47,550 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #160 in Cordless Tool Accessories #430 in Outdoor Power Tool Accessories |
| Item model number | LBXR20 |
| Manufacturer | CXAB |
| Product Dimensions | 13 x 9.5 x 6.99 cm; 226.8 g |

## 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 LBX4020 and LST522 LHT2220 LST300 20-Volt Max 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

### ⭐⭐⭐⭐⭐ Review
*by J***D on 11 July 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.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 30 July 2024*

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

### ⭐⭐⭐⭐ Review
*by G***R on 9 July 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 Portugal*
*Store origin: PT*
*Last updated: 2026-03-13*