--- 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: "€ 19.42" currency: EUR in_stock: true reviews_count: 13 category: "Eemb" url: https://www.desertcart.hr/products/539008576-3v-cr2032-cmos-battery-with-2-pin-wires-leads-molex store_origin: HR region: Croatia --- # 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:** € 19.42 **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?** € 19.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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 - • **Certified Safety:** TUV IEC 62133 tested & UL certified for peace of mind in every charge - • **Optimized Capacity:** 240mAh ensures long-lasting CMOS backup without frequent replacements - • **Device-Specific Fit:** Designed exclusively for select models—avoid costly polarity mistakes - • **Connector Confidence:** Equipped with MOLEX 1.25mm 2-pin leads for seamless, secure installation - • **Precision Power Delivery:** Reliable 3V output tailored for Alienware, Dell & Thinkpad laptops ## Overview The EEMB 3V CR2032 CMOS Battery features a 240mAh lithium metal cell with a 2-pin MOLEX 1.25mm connector, engineered specifically for Alienware M11, Dell Latitude E6520, and Lenovo Thinkpad T40 series. Certified by TUV and UL, it guarantees safe, reliable CMOS backup power. Note: polarity confirmation is essential to prevent damage, making this a specialized replacement battery for discerning professionals. ## 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: Does the job - As described, reverse polarity compared to the "standard" configuration. Just the job for a Novatech laptop with a flat CMOS battery brought to me for repair. 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. ## 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 | | Best Sellers Rank | 6,843 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 4 in Laptop Batteries | | Brand Name | EEMB | | Country of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (769) | | Item Dimensions | 3 x 20 x 20 millimetres | | Item Weight | 0.01 Pounds | | Manufacturer | EEMB Co.,Ltd | | Model Name | CR2032 | | Model Number | CR2032 | | Number of Batteries | 10 Lithium Metal batteries required. (included) | | 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 ![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 ### ⭐⭐⭐⭐⭐ Does the job *by T***R on 24 February 2026* As described, reverse polarity compared to the "standard" configuration. Just the job for a Novatech laptop with a flat CMOS battery brought to me for repair. ### ⭐⭐⭐⭐⭐ 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! ## 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 - 20PCS Vibration Motor DC3V 12000rpm Mini Vibration Motor Vibrating Motors for Projects Electronic Device Repair Single Board Computers Project Classroom Project Bristle Bots Cable 2in - LiCB CR2032 3V Lithium Battery(10-Pack) --- ## 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.hr/products/539008576-3v-cr2032-cmos-battery-with-2-pin-wires-leads-molex](https://www.desertcart.hr/products/539008576-3v-cr2032-cmos-battery-with-2-pin-wires-leads-molex) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*