---
product_id: 274125669
title: "Replacement for Coin Cell Battery DELL E5440 E5450 E6440 E6420 E6230 E6520 E7440 E7240 | Alienware M18x, M18xR2, 14 R1, 18 R1, 13, 17 R2, 15 R1, 15 R2, 17 R3, 13 R2, 15 R3, 17 R4| Inspiron 4050"
brand: "lefix"
price: "S$21"
currency: SGD
in_stock: true
reviews_count: 1
category: "Le Fix"
url: https://www.desertcart.sg/products/274125669-replacement-for-coin-cell-battery-dell-e5440-e5450-e6440-e6420
store_origin: SG
region: Singapore
---

# 220mAh long-lasting capacity 3V power boost Standard 2-pin connector Replacement for Coin Cell Battery DELL E5440 E5450 E6440 E6420 E6230 E6520 E7440 E7240 | Alienware M18x, M18xR2, 14 R1, 18 R1, 13, 17 R2, 15 R1, 15 R2, 17 R3, 13 R2, 15 R3, 17 R4| Inspiron 4050

**Brand:** lefix
**Price:** S$21
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your legacy laptop like a pro — never miss a beat with LeFix!

## Quick Answers

- **What is this?** Replacement for Coin Cell Battery DELL E5440 E5450 E6440 E6420 E6230 E6520 E7440 E7240 | Alienware M18x, M18xR2, 14 R1, 18 R1, 13, 17 R2, 15 R1, 15 R2, 17 R3, 13 R2, 15 R3, 17 R4| Inspiron 4050 by lefix
- **How much does it cost?** S$21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/274125669-replacement-for-coin-cell-battery-dell-e5440-e5450-e6440-e6420)

## Best For

- lefix enthusiasts

## Why This Product

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

## Key Features

- • **Reliable BIOS Power:** Keep your laptop’s internal clock and settings flawless with a stable 3V CMOS battery.
- • **Prevent Startup Errors:** Say goodbye to annoying date errors and Windows boot issues caused by dead CMOS batteries.
- • **Premium Japanese Quality:** Crafted by Maxell in Japan, ensuring durability and consistent performance over years.
- • **Plug & Play Compatibility:** Designed with a standard 2-pin, 1.25 pitch connector for seamless replacement in multiple Dell and Alienware models.
- • **Anti-Static Professional Packaging:** Arrives safely in anti-static bags, preserving battery integrity until installation.

## Overview

The LeFix Replacement Coin Cell Battery is a high-quality 3V, 220mAh CMOS battery made by Maxell in Japan, designed specifically for a wide range of Dell and Alienware laptops. Featuring a standard 2-pin connector and professional anti-static packaging, it ensures reliable BIOS power to maintain system date and settings, preventing startup errors and enhancing device longevity.

## Description

Always got wrong date and error message when you turn on your laptop? Even the Windows XP can't be loaded correctly? (Windows XP can't be loaded correctly when the Date setting is no sense, this could happen when the CMOS battery voltage is low). Then it is time to change your CMOS RTC coin battery! Every computer has a small coin cell battery to power the BIOS chip to keep the date, and other internal settings effective. Without these cmos batteries or a dead cmos battery these internal setting will not function. CMOS RTC battery should be replaced every few years (typically 3-4 yrs).

Review: Seems fine - No issues

## Features

- Battery Data:3V 220mAh CR2032
- Coin Battery is made by Maxell in Japan.High Quality and Durable
- Battery Leads with Wires:Standard 2Pin and 2 Wire with 1.25 Pitch Connector
- Professional Packaging with Anti-static BagCompatible Models:E5440 E5450 E6440 E6420 E6230 E6520 E7440 E7240 Alienware 17R3

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B089DX8VK1 |
| Amperage | 3 Amps |
| Antenna Location | Laptop |
| Battery Capacity | 220 Milliampere Hour (mAh) |
| Battery capacity | 220 Milliampere Hour (mAh) |
| Best Sellers Rank | 39,598 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 592 in Laptop Batteries |
| Brand | LeFix |
| Brand Name | LeFix |
| Customer Reviews | 4.7 out of 5 stars 108 Reviews |
| Item Dimensions | 45 x 20 x 3 millimetres |
| Manufacturer | LeFix |
| Number of Batteries | 1 CR2 batteries required. |
| Number of batteries | 1 CR2 batteries required. |
| Recommended uses for product | Laptop |
| Reusability | Single Use |
| Unit Count | 1.0 count |
| Unit count | 1.0 count |
| Voltage | 3 Volts |

## Product Details

- **Battery capacity:** 220 Milliampere Hour (mAh)
- **Brand:** LeFix
- **Number of batteries:** 1 CR2 batteries required.
- **Recommended uses for product:** Laptop
- **Unit count:** 1.0 Count

## Images

![Replacement for Coin Cell Battery DELL E5440 E5450 E6440 E6420 E6230 E6520 E7440 E7240 | Alienware M18x, M18xR2, 14 R1, 18 R1, 13, 17 R2, 15 R1, 15 R2, 17 R3, 13 R2, 15 R3, 17 R4| Inspiron 4050 - Image 1](https://m.media-amazon.com/images/I/41S465nnV2L.jpg)

## Questions & Answers

**Q: Does this have an adhesive pad?**
A: Yes,it's have the adhesive pad on the other side.

**Q: Is this battery compatible with Dell Inspiron 5567? If not which cmos battery will work?**
A: Is this for a laptop or desktop?

**Q: When was this battery manufacturered?**
A: in 2020 and produced by Maxell in Japan.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Seems fine
*by A***G on 1 March 2025*

No issues

## Frequently Bought Together

- CMOS Battery RTC Memory BIOS Battery for DELL Latitude E5440 E5450 E6440 E6420 E7440 E7240,Alien-Ware M18x,M18xR2,14 R1,18 R1,13,17 R2,15 R1,15 R2,17 R3,13 R2,15 R3,17 R4|for Inspiron 4050(Black)
- TEAMGROUP Elite DDR3L 16GB Kit (2 x 8GB) 1600MHz PC3-12800 CL11 Unbuffered Non-ECC 1.35V SODIMM 204-Pin Laptop Notebook PC Computer Memory Module Ram Upgrade - TED3L16G1600C11DC-S01
- T54FJ M5Y0X 8858X Laptop Battery for Dell Latitude E6420 E6520 E6530 E5420 E5520 E5430 E5530 Inspiron 17r-7720 17r-se-7720 17r-5720 15r-5520 15r-7520 P/N: T54F3 P8TC7 P9TJ0 R48V X57F1 M421R M521R

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**Shop now:** [https://www.desertcart.sg/products/274125669-replacement-for-coin-cell-battery-dell-e5440-e5450-e6440-e6420](https://www.desertcart.sg/products/274125669-replacement-for-coin-cell-battery-dell-e5440-e5450-e6440-e6420)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-02*