---
product_id: 479162233
title: "Dong Cheng 18V (20V MAX) 4.0Ah Lithum-ion Battery Pack Power Tools, Model# FFBL2040"
brand: "dong cheng"
price: "65666CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Dong Cheng"
url: https://www.desertcart.sn/products/479162233-dong-cheng-18v-20v-max-4-0ah-lithum-ion-battery
store_origin: SN
region: Senegal
---

# 4-LED fuel gauge for instant charge status 4.0Ah high-capacity runtime Over-temp & over-current protection Dong Cheng 18V (20V MAX) 4.0Ah Lithum-ion Battery Pack Power Tools, Model# FFBL2040

**Brand:** dong cheng
**Price:** 65666CFA
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your productivity, never miss a beat!

## Quick Answers

- **What is this?** Dong Cheng 18V (20V MAX) 4.0Ah Lithum-ion Battery Pack Power Tools, Model# FFBL2040 by dong cheng
- **How much does it cost?** 65666CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/479162233-dong-cheng-18v-20v-max-4-0ah-lithum-ion-battery)

## Best For

- dong cheng enthusiasts

## Why This Product

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

## Key Features

- • **Smart Safety First:** Built-in sensors prevent overheating and overcurrent, extending battery lifespan and your peace of mind.
- • **Instant Charge Insight:** 4-LED fuel gauge keeps you in control with real-time battery status at a glance.
- • **Seamless Compatibility:** Works flawlessly with all DongCheng 20V Max tools—one battery, endless possibilities.
- • **Durability Meets Design:** Advanced chip and reinforced housing ensure this battery withstands the toughest jobsite demands.
- • **Power Through Your Projects:** 4.0Ah fade-free lithium-ion cells deliver all-day performance without slowdown.

## Overview

The DongCheng 18V (20V MAX) 4.0Ah Lithium-ion Battery Pack (Model FFBL2040) offers high-capacity, fade-free power compatible with all DongCheng 20V Max tools. Featuring advanced chip design, robust housing, and smart sensors for over-temperature and over-current protection, it ensures long-lasting durability and safety. The integrated 4-LED fuel gauge provides immediate charge feedback, making it an essential upgrade for professionals demanding reliable, all-day runtime.

## Description

desertcart.com: Dong Cheng 18V (20V MAX) 4.0Ah Lithum-ion Battery Pack Power Tools, Model# FFBL2040 : Automotive

Review: These are spare for when first set dies - So far works good
Review: Awesomely useful - This is a work horse! I got a set of spare batteries and I can use the saw all day. The chain is quick and easy to change , the saw is easy to handle, I love this thing!

## Features

- Compatible with all DongCheng 20V Max Lithium-Ion family of power tools.
- Advanced chip design, consolidated housing and inner structure provides durability.
- Fade-free battery cells with 4.0Ah high capacity of runtime offers long-lasting performance.
- Over temperature and over-current sensor protects and prolongs the total lifespan of batteries.
- 4-LED Fuel Gauge of DongCheng battery allows immediate feedback on state of charge.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B24ZX5M9 |
| Amperage | 4 Amps |
| Antenna Location | Indoor/Outdoor |
| Battery Capacity | 4 Amp Hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 430 Grams |
| Best Sellers Rank | #100,259 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,166 in Cordless Tool Battery Packs |
| Brand | Dong Cheng |
| Customer Reviews | 4.7 out of 5 stars 74 Reviews |
| Global Trade Identification Number | 06974413736167 |
| Item Dimensions | 4.41 x 2.95 x 2.28 inches |
| Manufacturer | Dong Cheng |
| Model Name | FFBL2040 |
| Model Number | FFBL2040 |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Recommended Uses For Product | Indoor/Outdoor |
| Reusability | Yes |
| Unit Count | 1.0 Count |
| Voltage | 20 Volts |

## Product Details

- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Brand:** Dong Cheng
- **Battery Cell Composition:** Lithium Ion
- **Recommended Uses For Product:** Power Tool
- **Unit Count:** 1 Count

## Images

![Dong Cheng 18V (20V MAX) 4.0Ah Lithum-ion Battery Pack Power Tools, Model# FFBL2040 - Image 1](https://m.media-amazon.com/images/I/81rrx8HQbnL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can the FFBL2040 be used with any DongCheng power tool?**
A: This battery pack is compatible with all DongCheng 20V Power Tools.

**Q: What advantages does our FFBL2040 offer compared to other brands?**
A: Our battery pack features advanced chip design and reinforced internal structure, delivering both extended runtime and durability.

**Q: Does it have overheat protection? Will it overheat and shut down when used with high-power tools?**
A: This battery incorporates built-in over-temperature and over-current sensors to effectively prevent overheating and overload.

**Q: What's the weight of this battery?**
A: The battery weighs only 630 grams, featuring a lightweight design for fatigue-free extended use.

## Customer Reviews

### ⭐⭐⭐⭐⭐ These are spare for when first set dies
*by S***Y on April 21, 2026*

So far works good

### ⭐⭐⭐⭐⭐ Awesomely useful
*by R***Y on January 20, 2026*

This is a work horse! I got a set of spare batteries and I can use the saw all day. The chain is quick and easy to change , the saw is easy to handle, I love this thing!

### ⭐⭐⭐⭐⭐ Good deal
*by B***N on February 2, 2026*

I cant speak on the longevity, but it packs a punch and is a great deal for the price!

## Frequently Bought Together

- Dong Cheng 18V (20V MAX) Battery, Lithium-Ion 4.0 Ah High Capacity Battery Pack Compactible with DongCheng 18V (20V MAX) Power Tools, Model# FFBL2040
- DongCheng 20V Max Cordless Rotary Hammer Drill, 7/8" SDS-Plus, 4 Application Modes, Brushless, 2.1 Joules, Cordless Demolition Hammer for Concrete, Including 4.0Ah Battery and Charger, 4 Drill Bits
- Dong Cheng 20V Brushless Impact Wrench, 515 ft-lbs High Torque, 1/2 inch 4-Speed Cordless Impact Gun with Tool Bag, Easily Removes Bolts on Cars, Trucks, and Tractors, Includes 4.0Ah Battery & Charger

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**Shop now:** [https://www.desertcart.sn/products/479162233-dong-cheng-18v-20v-max-4-0ah-lithum-ion-battery](https://www.desertcart.sn/products/479162233-dong-cheng-18v-20v-max-4-0ah-lithum-ion-battery)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-23*