---
product_id: 539008576
title: "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: "$31"
currency: NZD
in_stock: true
reviews_count: 13
category: "Eemb"
url: https://www.desertcart.nz/products/539008576-3v-cr2032-cmos-battery-with-2-pin-wires-leads-molex
store_origin: NZ
region: New Zealand
---

# 240mAh Capacity 3V Voltage Power 2-Pin MOLEX Connector 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:** $31
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your legacy devices with precision and confidence!

## Quick Answers

- **What is this?** 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?** $31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/539008576-3v-cr2032-cmos-battery-with-2-pin-wires-leads-molex)

## 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

- • **Compact Yet Mighty:** Slim 20.5mm diameter & 4.3mm height fits perfectly without bulk
- • **Expert Support Access:** Responsive 24-hour customer service to keep you powered up
- • **Precision Power Boost:** Reliable 3V output tailored for Alienware, Dell & Thinkpad laptops
- • **Plug & Play Compatibility:** 2-pin MOLEX 1.25mm connector ensures seamless laptop integration
- • **Certified Safety Assurance:** TUV IEC 62133 tested & UL certified for peace of mind

## Overview

The EEMB 3V CR2032 CMOS Battery features a 240mAh capacity and a 2-pin MOLEX 1.25mm connector, designed specifically for Alienware M11, Dell Latitude E6520 series, and Lenovo Thinkpad T40 models. It is TÜV IEC 62133 safety tested and UL certified, ensuring reliable and safe laptop battery replacement. Note: Confirm device and connector polarity before purchase to avoid damage.

## 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 |
| Best Sellers Rank | 4,412 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 3 in Laptop Batteries |
| Guaranteed software updates until | unknown |
| Item model number | CR2032 |
| Manufacturer | EEMB Co.,Ltd |
| Product Dimensions | 0.32 x 2 x 2 cm; 5 g |

## 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

![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)

## 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

- EEMB 10-Pack CMOS Battery CR2032 3V Lithium Battery with 2 Pin 2 Wire Cable and MOLEX Connector CMOS Replacement for Alienware M11 Dell E6520 Thinkpad T40 Motherboards
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**Shop now:** [https://www.desertcart.nz/products/539008576-3v-cr2032-cmos-battery-with-2-pin-wires-leads-molex](https://www.desertcart.nz/products/539008576-3v-cr2032-cmos-battery-with-2-pin-wires-leads-molex)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-22*