---
product_id: 524324690
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: "AR$23212"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/524324690-cmos-battery-for-dell-latitude-e5440-e5450-e6440-e6420-e7440
store_origin: AR
region: Argentina
---

# 8-year lifespan 240mAh capacity Easy DIY replacement 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:** AR$23212
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Productivity!

## 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?** AR$23212 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/524324690-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

- • **Long-Lasting Power:** Enjoy up to 8 years of reliable performance without frequent replacements.
- • **User-Friendly Design:** Replace your battery in just a few simple steps—no special tools required!
- • **Universal Compatibility:** One battery fits multiple laptop models, simplifying your tech life.
- • **Say Goodbye to Time Issues!:** Keep your laptop's clock accurate with this high-quality CMOS battery.
- • **Individually Packaged for Quality:** Each battery is carefully packaged to ensure optimal performance.

## Overview

This high-quality CR2032 CMOS battery is designed for a wide range of Dell laptops, ensuring reliable performance and longevity. With a lifespan of up to 8 years and easy installation, it's the perfect solution for maintaining your laptop's time and date settings without hassle.

## Description

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.

## 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 |
|---------------|-------|
| Item Dimensions | 3.35 x 0.79 x 0.08 inches |
| Item Weight | 5 Grams |
| Battery Weight | 3 Grams |
| Unit Count | 1.0 Count |
| Battery Cell Type | Lithium Manganese Dioxide |
| Recommended Uses For Product | Laptop |
| Reusability | Single Use |
| Battery Capacity | 240 Milliamp Hours |
| Voltage | 3 Volts |

## 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, Style** 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works for nuc 9 extreme.
*by J***. on August 24, 2025*

After some research this looked like it would work with a Intel nuc 9 extreme compute element and it did.

### ⭐⭐⭐⭐⭐ Perfect fit and proper polarity
*by D***. on August 21, 2025*

This battery fit perfectly. Dell changed the connector in the later models slightly and reversed the polarity, so I was thankful this one matched the battery i was replacing exactly. Thanks you for the accurate descriptions of which models this battery applied to.

### ⭐⭐⭐⭐⭐ Plug and play, very easy installation!!
*by R***B on June 8, 2025*

Fit perfectly in my dell laptop with easy plug and play installation!

## 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

---

## 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.com.ar/products/524324690-cmos-battery-for-dell-latitude-e5440-e5450-e6440-e6420-e7440](https://www.desertcart.com.ar/products/524324690-cmos-battery-for-dell-latitude-e5440-e5450-e6440-e6420-e7440)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-25*