---
product_id: 539008576
title: "EEMB 3V CR2032 CMOS Battery with 2 Pin Wires Leads MOLEX 1.25mm Connector Laptop Replacement Battery for Alienware M11 Dell E6520 Thinkpad T40-confirm device & connector polarity before purchase!!!"
brand: "eemb"
price: "R336"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Eemb"
url: https://www.desertcart.co.za/products/539008576-eemb-3v-cr2032-cmos-battery-with-2-pin-wires-leads
store_origin: ZA
region: South Africa
---

# 240mAh Capacity 3V Voltage Power 2-Pin MOLEX Connector EEMB 3V CR2032 CMOS Battery with 2 Pin Wires Leads MOLEX 1.25mm Connector Laptop Replacement Battery for Alienware M11 Dell E6520 Thinkpad T40-confirm device & connector polarity before purchase!!!

**Brand:** eemb
**Price:** R336
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your legacy devices with precision and confidence!

## Quick Answers

- **What is this?** EEMB 3V CR2032 CMOS Battery with 2 Pin Wires Leads MOLEX 1.25mm Connector Laptop Replacement Battery for Alienware M11 Dell E6520 Thinkpad T40-confirm device & connector polarity before purchase!!! by eemb
- **How much does it cost?** R336 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/539008576-eemb-3v-cr2032-cmos-battery-with-2-pin-wires-leads)

## Best For

- eemb enthusiasts

## Why This Product

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

## Key Features

- • **Secure Connection:** Equipped with a 2-pin MOLEX 1.25mm connector for perfect fit and polarity safety.
- • **Wide Compatibility:** Tailored for Alienware M11x, Dell Latitude E6520, Thinkpad T40 and more—confirm polarity to avoid mishaps.
- • **Long-Lasting Capacity:** 240mAh battery capacity keeps your device running smoothly without frequent replacements.
- • **Precision Power Delivery:** 3V voltage ensures stable and reliable laptop CMOS performance.
- • **Certified Safety Assurance:** TUV IEC 62133 tested and UL certified for peace of mind and device protection.

## Overview

The EEMB 3V CR2032 CMOS Battery features a 240mAh lithium metal cell with a 2-pin MOLEX 1.25mm connector, designed specifically for select Alienware, Dell, and Thinkpad laptops. Certified by TUV and UL, it guarantees safety and reliability. Note: polarity confirmation is essential to prevent damage, making it a specialized, not universal, replacement battery.

## Description

Free delivery and returns on eligible orders. Buy EEMB 3V CR2032 CMOS Battery with 2 Pin Wires Leads MOLEX 1.25mm Connector Laptop Replacement Battery for Alienware M11 Dell E6520 Thinkpad T40-confirm device & connector polarity before purchase!!! at desertcart UK.

Review: Good batteries - Batteries as described and tested 3.3v with a multimeter, my only suggestion would be it would be nice if the yellow plastic cover indicated whether they are Reverse Polarity or not.
Review: Also suitable for Dell Alienware x51 R2 PC - These batteries (reverse polarity version) can also be used on Dell Alienware x51 R2 PC. All fitted & working fine. Why Dell decided to not use the usual motherboard mounted battery socket and then reversed the wire polarity is a mystery!

## Features

- BASIC INFO—Voltage: 3V; Capacity: 240mAh; Diameter: 20.5mm, Height: 4.3mm. Connector: CR2032-MX51021. Attention: Do not charge! MUST CONFIRM Connector Polarity BEFORE PURCHASE. THIS IS NOT UNIVERSAL!!! (It will cause a shortage if the polarity of the battery connector does not match your device.)
- CERTIFICATIONS—Safety test by TUV: IEC 62133. More than 400 EEMB battery models are UL certified. Search "MH20555" on UL for all EEMB UL certification information.
- QUALITY SERVICE— Please contact us if you have any questions or concerns with the product via desertcart message. We will respond to you within 24 hours.
- APPLICATION—Suitable for Alienware M11x R1 R2 Area-51 13 15 17 18 R2 R3 R4 M14x R1 R2 M17x M18x R2 Area-51 M9700 M9750Dell Latitude E6520, E6420, E6320, XFR E6420, ATG E6420, E5530, E6230, E5430, E6530, E6430;IBM Lenovo Thinkpad T40 T400 T41 T410 T410I T42 T420 T420I T420S.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09F38WVWH |
| Amperage | 1.5 Amps |
| Antenna Location | Bicycle,Toys,Watches |
| Battery Capacity | 240 Milliamp Hours |
| Battery Cell Type | Lithium Metal |
| Battery Weight | 5 Grams |
| Battery capacity | 240 Milliamp Hours |
| Battery cell composition | Lithium Metal |
| Best Sellers Rank | 7,354 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 8 in Laptop Batteries |
| Brand | EEMB |
| Brand Name | EEMB |
| Country of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 707 Reviews |
| Item Dimensions | 3 x 20 x 20 millimetres |
| Item Weight | 5 g |
| Manufacturer | EEMB Co.,Ltd |
| Model Name | CR2032 |
| Model Number | CR2032 |
| Number of Batteries | 10 Lithium Metal batteries required. (included) |
| Number of batteries | 10 Lithium Metal batteries required. (included) |
| Recommended uses for product | Bicycle,Toys,Watches |
| Reusability | Single Use |
| Voltage | 3 Volts |

## Product Details

- **Battery capacity:** 240 Milliamp Hours
- **Battery cell composition:** Lithium Metal
- **Brand:** EEMB
- **Number of batteries:** 10 Lithium Metal batteries required. (included)
- **Recommended uses for product:** Bicycle,Toys,Watches

## Images

![EEMB 3V CR2032 CMOS Battery with 2 Pin Wires Leads MOLEX 1.25mm Connector Laptop Replacement Battery for Alienware M11 Dell E6520 Thinkpad T40-confirm device & connector polarity before purchase!!! - Image 1](https://m.media-amazon.com/images/I/61EsL5hyk4L.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this fit for yoga 11e 5th gen ?**
A: Yes it is fit for yoga!

**Q: Can I use this CMOS battery for a Dell Inspiron 3050?**
A: Not sure, I install it in Intel NUC5i7RYH. That work

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good batteries
*by C***E on 3 January 2026*

Batteries as described and tested 3.3v with a multimeter, my only suggestion would be it would be nice if the yellow plastic cover indicated whether they are Reverse Polarity or not.

### ⭐⭐⭐⭐⭐ Also suitable for Dell Alienware x51 R2 PC
*by A***N on 8 December 2025*

These batteries (reverse polarity version) can also be used on Dell Alienware x51 R2 PC. All fitted & working fine. Why Dell decided to not use the usual motherboard mounted battery socket and then reversed the wire polarity is a mystery!

### ⭐⭐⭐⭐⭐ Ten for the cost of many less. well worth the spend
*by A***Y on 9 August 2025*

Perfect, three used and a few spare.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.co.za/products/539008576-eemb-3v-cr2032-cmos-battery-with-2-pin-wires-leads](https://www.desertcart.co.za/products/539008576-eemb-3v-cr2032-cmos-battery-with-2-pin-wires-leads)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-20*