---
product_id: 601544165
title: "CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 E7440 E7240,CMOS battery for Dell AlienWare M11x R1 R2 Area-51 M9700 M9750 laptop BIOS RTC CR2032 Battery with 2 Wire Cable and connector."
brand: "ljcell"
price: "RM72"
currency: MYR
in_stock: true
url: https://www.desertcart.com.my/products/601544165-cmos-battery-for-dell-latitude-e5440-e5450-e6440-e6420-e7440
store_origin: MY
region: Malaysia
---

# 8-year lifespan 2-wire cable with connector Universal Dell & Alienware compatibility CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 E7440 E7240,CMOS battery for Dell AlienWare M11x R1 R2 Area-51 M9700 M9750 laptop BIOS RTC CR2032 Battery with 2 Wire Cable and connector.

**Brand:** ljcell
**Price:** RM72
**Availability:** ✅ In Stock

## Summary

> 🔋 Keep your laptop’s clock ticking flawlessly—because every second counts!

## Quick Answers

- **What is this?** CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 E7440 E7240,CMOS battery for Dell AlienWare M11x R1 R2 Area-51 M9700 M9750 laptop BIOS RTC CR2032 Battery with 2 Wire Cable and connector. by ljcell
- **How much does it cost?** RM72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/601544165-cmos-battery-for-dell-latitude-e5440-e5450-e6440-e6420-e7440)

## Best For

- ljcell enthusiasts

## Why This Product

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

## Key Features

- • **Power That Lasts:** Up to 8 years of reliable BIOS timekeeping—never reset your clock again.
- • **Compact & Lightweight:** Slim 20mm diameter battery fits perfectly without adding bulk to your laptop.
- • **Plug & Play Simplicity:** Easy DIY replacement with included 2-wire cable and connector—no tech skills needed.
- • **Leak-Resistant & Stable:** Engineered for low self-discharge and strong resistance to leakage—trustworthy performance.
- • **Broad Dell & Alienware Compatibility:** Works seamlessly with Latitude, Precision, Inspiron, XPS, and Alienware models.

## Overview

The LJCELL CMOS Battery LJ-CMOS-4 is a high-quality CR2032 replacement battery designed for a wide range of Dell and Alienware laptops. Featuring an 8-year lifespan, universal compatibility across popular models, and a convenient 2-wire connector, it ensures stable BIOS and RTC performance with easy installation. Compact, leak-resistant, and reliable, this battery eliminates time/date reset hassles and keeps your device running smoothly.

## Description

Our factory manufactures Cmos batteries for various brands around the world. LJCELL Cmos batteries are very suitable for notebook computers, netbooks, laptops, and portable computers, and can completely replace the corresponding brands of Cmos batteries. The LJCELL brand offers you products that are small yet powerful and safe. Our Cmos battery products have the characteristics of large capacity, high power, long life, stable and reliable performance, low self-discharge rate, strong resistance to leakage, and easy replacement.

## Features

- High-quality Cmos Battery: This CR2032 battery is specifically designed for laptops and has high-quality performance and reliability, so you can say goodbye to laptop time and date setting issues!
- Compatibility: This battery is universal and compatible with most laptop brands and models, which means you only need to buy one battery to use on multiple laptops.Rtc Bios Cmos battery compatible with Dell Alienware M11x R1 R2 Area-51 13 15 17 18 R2 R3 R4 M14x R1 R2 M17x M18x R2 Area-51 M9700 M9750;Cmos battery for Dell Precision M6600 M4600 M4700 M6700 M4800 M6800 M3800 15 (7510);Cmos battery for Dell Inspiron 15 (7559), 15 (7577), 9400, 9300, 9200;Cmos battery for Chromebook 13 (7310);Cmos battery for Dell XPS 1820.
- Longevity: This battery has a long lifespan and can keep your laptop's time and date setting for up to 8 years, which means you don't need to replace the battery frequently and can save a lot of time and money.
- Convenient and easy to use: The product size is 20mm (0.79 inches) in diameter, about 3.5mm (0.138 inches) in height, and 65mm (2.56 inches) in length.Replacing the battery is very simple and can be completed in just a few steps without any special professional skills or tools, which means you can easily complete the battery replacement task on your own.
- Battery packaging: Each battery product is individually packaged, these batteries cannot be charged, otherwise they will damage the battery and product.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | LJCELL |
| Item model number | LJ-CMOS-4 |
| Product Dimensions | 8.5 x 2 x 0.2 cm; 5 g |
| ASIN | B0BYK52CSF |
| Guaranteed software updates until | unknown |

## Product Details

- **Number of batteries:** 1 CR2032 batteries required. (included)
- **Brand:** LJCELL
- **Battery cell composition:** Lithium Manganese Dioxide
- **Battery capacity:** 240 Milliamp Hours
- **Recommended uses for product:** Laptop

## Images

![CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 E7440 E7240,CMOS battery for Dell AlienWare M11x R1 R2 Area-51 M9700 M9750 laptop BIOS RTC CR2032 Battery with 2 Wire Cable and connector. - Image 1](https://m.media-amazon.com/images/I/51jGFd451mL.jpg)

## Available Options

This product comes in different **Size Name, Style Name** options.

## Questions & Answers

**Q: is it the same model as the cr2032cl-23-2?**
A: Yes,my friend.it's the same.

**Q: Is it compatible with toshiba portege m200 Battery #:US1620N 3V battery?**
A: Hello my friend,
The battery you need for your device is ML1220 rechargeable battery. The connector model is MX51021-0200-B. This product of ours is not suitable for your device. There are currently no products in our store suitable for your device. Our factory will produce this product in the future.
Best regards,
Jackchen

**Q: Do you know which one would works for Sony model PCG-61911U?**
A: Don't remember what laptop I used this on. Check that the battery voltages are the same and the plugs are the same. Important to check the polarity of the plug (make sure black and red wires connect the same as the old plug) Amazon has all the specs listed. Proceed  with caution. If all is the same plug it in and restart the PC to be sure the battery is working. If working the PC will remember the time after you set it or the PC sets it via the internet and have no boot up errors. May have to restart a couple of times. Hope this helps.

**Q: Will this work with a orange pi 5 plus?**
A: Hello my friend, this product is not suitable for orange pi 5 plus.

## Frequently Bought Together

- LJCELL CMOS Battery for Dell Latitude E5440 E5450 E6440 E6420 E7440 E7240,CMOS battery for Dell AlienWare M11x R1 R2 Area-51 M9700 M9750 laptop BIOS RTC CR2032 Battery with 2 Wire Cable and connector.
- LeFix CMOS Battery RTC Battery CR2032 Compatible with DELL D830 E6530 N4050 E7270;for HP CQ41 8440p G4;for ASUS S56 X611;for Samsung R467 R458,Black
- LJCELL Cmos Battery Compatible with Intel Nuc 5PPYH for Ps2 and Ps3 for PlayStation 2 and PlayStation 3 Backup Bios Rtc Cr2032 Battery with 2 Wire Cable and Connector

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-01-31*