---
product_id: 136818459
title: "DTK 3.5Ah 40V MAX Lithium Batteries Replacement for Black and Decker 40V Battery LBX2040 LBX36 LBXR36 LBXR2036 LST540 LST136W Replacement for Black&Decker"
brand: "dtk"
price: "R1093"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Dtk"
url: https://www.desertcart.co.za/products/136818459-dtk-3-5ah-40v-max-lithium-batteries-replacement-for-black
store_origin: ZA
region: South Africa
---

# 40V MAX Voltage 3.5Ah Real Capacity 7x Longer Charge Retention DTK 3.5Ah 40V MAX Lithium Batteries Replacement for Black and Decker 40V Battery LBX2040 LBX36 LBXR36 LBXR2036 LST540 LST136W Replacement for Black&Decker

**Brand:** dtk
**Price:** R1093
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your productivity — never get caught powerless again!

## Quick Answers

- **What is this?** DTK 3.5Ah 40V MAX Lithium Batteries Replacement for Black and Decker 40V Battery LBX2040 LBX36 LBXR36 LBXR2036 LST540 LST136W Replacement for Black&Decker by dtk
- **How much does it cost?** R1093 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/136818459-dtk-3-5ah-40v-max-lithium-batteries-replacement-for-black)

## Best For

- dtk enthusiasts

## Why This Product

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

## Key Features

- • **Smart & Safe Charging:** Built-in microchip prevents overcharging and self-discharge, while the LED indicator keeps you informed on battery status.
- • **Peace of Mind Warranty:** Backed by a 12-month limited warranty and 30-day money-back guarantee — because your tools deserve reliable power.
- • **Seamless Compatibility:** Perfectly fits LBX2040, LBX36, LBXR36, and more — no hassle, just plug and play with all 36V/40V Max chargers.
- • **Power Through Your Projects:** 3.5Ah high-capacity lithium-ion cells deliver extended runtime and consistent power for all your Black & Decker 40V tools.
- • **Work Longer, Charge Smarter:** Holds charge up to 7x longer than NiCad batteries, so you stay productive without constant recharging interruptions.

## Overview

The DTK 3.5Ah 40V MAX Lithium Battery is a premium replacement battery compatible with Black & Decker 40V cordless tools. Featuring high-quality lithium-ion cells, it offers 3.5Ah capacity, 40V output, and up to 7 times longer charge retention than NiCad batteries. Integrated safety microchips and LED charge indicators ensure reliable, safe operation. This battery supports all 36V/40V Max chargers and comes with a 12-month warranty, making it a smart upgrade for professionals seeking dependable power on the go.

## Description

desertcart.com: DTK 3.5Ah 40V MAX Lithium Batteries Replacement for Black and Decker 40V Battery LBX2040 LBX36 LBXR36 LBXR2036 LST540 LST136W Replacement for Black&Decker : Automotive

Review: Just for this, so far it seems to be pretty good! - My factory battery was not keeping a charge, it this is after 6 years of heavy use. I attempted to get a replacement battery from a big box hardware store but they didn’t have the 40v battery in stock. I checked desertcart and there it was for a fraction of the price. It fit perfectly into my cordless blower and trimmer and works just fine!
Review: Great product - Excellent product Long lasting Charges quickly

## Features

- [Battery specification] Brand New| Battery Type:Li-ion| Real Capacity:3.5Ah| Voltage:40V| Watts:140wh
- [Perfect compatibility] Compatible with black&decker lbx1540, lbx2040, lbxr36, lbxr2036 all 36v/40v cordless power tools. Charge with all 36v or 40v Max chargers, holds a charge up to 7x longer than NiCad
- [Product advantages] Use high quality lithium cells to produce this battery, no memory effect, can be charged or discharged as needed without capacity reduction.3.5Ah real capacity gives longer runtime and stronger power, make you work more effective
- [Safe and reliable] Integrated LED battery charge level indicator allows user to monitor battery using,Built-in integrated microchip prevents overcharging, self-discharge and lengthens battery life. Comply with FCC RoHS and CE security testing standards.
- [What You Get, Customer Service]: 1 packs batteries, Manual. 30-day money back and 12-month limited warranty. CONTACT US: Please contact through "Your Orders" tab in desertcart account (allow 24hrs for reply), we will give you the most satisfactory solution.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QZRL6NL |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #159,170 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,616 in Cordless Tool Battery Packs |
| Customer Reviews | 4.2 4.2 out of 5 stars (414) |
| Date First Available | May 8, 2019 |
| Item Weight | 8.2 ounces |
| Item model number | LBX2040 |
| Manufacturer | Shenzhen Henglixinyuan Electronic Technology Co., Ltd |

## Product Details

- **Battery Capacity:** 3.5 Amp Hours
- **Battery Cell Composition:** Lithium Ion
- **Brand:** DTK
- **Number of Batteries:** 1 A batteries required. (included)
- **Recommended Uses For Product:** Power Tool

## Images

![DTK 3.5Ah 40V MAX Lithium Batteries Replacement for Black and Decker 40V Battery LBX2040 LBX36 LBXR36 LBXR2036 LST540 LST136W Replacement for Black&Decker - Image 1](https://m.media-amazon.com/images/I/71BnrxTQJmL.jpg)

## Questions & Answers

**Q: I bought one of these in november of 2020.  it is now may 2021 and it no longer holds a charge.  did i get a bad battery?**
A: possibly, but I think that's normal.  mine didn't hold up for long.

**Q: Does it come charged?**
A: only partial. (can't legally ship fully charged)

**Q: Will this fit craftsman 40v tools?**
A: Yes, I am using it with my weed eater and it work great.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Just for this, so far it seems to be pretty good!
*by L***A on October 14, 2022*

My factory battery was not keeping a charge, it this is after 6 years of heavy use. I attempted to get a replacement battery from a big box hardware store but they didn’t have the 40v battery in stock. I checked Amazon and there it was for a fraction of the price. It fit perfectly into my cordless blower and trimmer and works just fine!

### ⭐⭐⭐⭐⭐ Great product
*by J***K on December 3, 2025*

Excellent product Long lasting Charges quickly

### ⭐⭐⭐⭐ Works great over all
*by R***� on September 18, 2025*

Overall works great, powers my black and decker mower and weedeater and blower fine. But it does flash red on the charger sometimes. It’s not one I can fully charge at one time. I have to leave it off charger for awhile then try and top it off if it won’t start flashing red. I keep a fan directly blowing on my batteries while charging bc I’m always worried about overheating them. My name brand ones don’t do that. Overall happy since this is way less expensive.

## Frequently Bought Together

- DTK 3.5Ah 40V MAX Battery Replacement for Black and Decker 40V Lithium Battery LBX2040 LBX36 LBXR36 LBXR2036 LST540 LST136W Replacement for Black&Decker 40V Lithium Battery
- BLACK+DECKER 40V MAX Hedge Trimmer, Cordless, 24-Inch Blade, Battery and Charger Included (LHT2436)
- BLACK+DECKER Weed Eater String, Trimmer Line, 3-Pack, 30-Feet of Replacement Spool, 0.065-Inch Diameter (AF1003ZP)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.za/products/136818459-dtk-3-5ah-40v-max-lithium-batteries-replacement-for-black](https://www.desertcart.co.za/products/136818459-dtk-3-5ah-40v-max-lithium-batteries-replacement-for-black)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-09*