--- product_id: 106749262 title: "LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600" brand: "lefix" price: "€ 16.44" currency: EUR in_stock: true reviews_count: 13 category: "Le Fix" url: https://www.desertcart.fr/products/106749262-lefix-replacement-cmos-battery-for-dell-latitude-d620-d630-d810 store_origin: FR region: France --- # Compatible with 30+ Dell Latitude & XPS models 3V Lithium Manganese Dioxide power 2-pin, 2-wire connector for seamless fit LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600 **Brand:** lefix **Price:** € 16.44 **Availability:** ✅ In Stock ## Summary > 🔋 Power your productivity—don’t let a dead CMOS battery hold you back! ## Quick Answers - **What is this?** LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600 by lefix - **How much does it cost?** € 16.44 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/106749262-lefix-replacement-cmos-battery-for-dell-latitude-d620-d630-d810) ## Best For - lefix enthusiasts ## Why This Product - Trusted lefix brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Thousands:** 4.6-star rating from 600+ users proves it’s the go-to fix for laptop power woes. - • **Ultra-Light & Compact:** Weighing just 4g and slim at 0.13 inches, it fits discreetly without adding bulk. - • **Effortless Compatibility:** Plug & play design tailored for Dell Latitude & XPS series—no guesswork, just power. - • **Precision Tested Quality:** Each battery undergoes rigorous testing before shipping—guaranteed performance you can trust. - • **Revive Your Legacy Laptop:** Breathe new life into aging devices with a reliable CMOS battery that resets BIOS settings flawlessly. ## Overview The LeFix Replacement CMOS Battery delivers a dependable 3V Lithium Manganese Dioxide cell designed specifically for a wide range of Dell Latitude and XPS laptops. Featuring a 2-pin, 2-wire connector, it ensures seamless installation and BIOS stability. Lightweight and compact, this battery is rigorously tested for quality, boasting a 4.6-star rating from over 600 satisfied customers, making it the essential upgrade to revive and maintain your professional laptop’s performance. ## Description Compatible Machine List For AW M18x, M18xR2, 14 R1, 18 R1, 13, 17 R2, 15 R1, 15 R2, 17 R3, 13 R2, 15 R3, 17 R4 For Chromebook 13 (7310) For Inspiron 15 (7559), 15 (7577), 9400, 9300, 9200 For Latitude E6520, E6420, E6320, XFR E6420, ATG E6420, E5530, E6230, E5430, E6530, E6430, ATG E6430, E7240, E7440, E6540, E6440, E5440, E5540, E5250, 3550, E7250, E7450, E5450, E5550, E5570, E5470, E7270, E7470, 5580, 7480, 5480, 7280, 13 (3380), 3189, 7490, 5590, 5490, 7400, 5500, 7300, 5501, 5400, D830, D820, D810, D630, D620 For XPS Studio XPS 1640, Studio XPS 1645, XPS 15 (9530) For Precision M6600, M4600, M4700, M6700, M4800, M6800, M3800, 15 (7510), 3520, 3541 For ASUS Edge R SBCs Review: Very easy to install and works 👍 - My computer suddenly died and wouldn't even properly boot into the BIOS. I was terrified that my computer finally died — it's an older 2017 Inspiron 15 gaming model. I have changed the HDD to an SSD and it's breathed new life into it, but it’s still old and at risk of succumbing to its age. When I looked up the blinking LED that is in front of the computer's base and what the pattern indicated, it turned out to be the CMOS battery failing. I decided it was better than nothing to attempt to replace it and see if that was the real issue. It was. Unfortunately, there was an issue with the BIOS not booting Windows correctly, but that was not because of this battery, but due to the fact that the battery before it had died and ruined the prexisting settings. Installing this battery was a breeze. I had no issues with the process, and the battery fit in the clip my laptop has just fine. I recommend this. Review: It Worked - What can I say, it fit as advertised, fixed the laptop. ## Features - Brand New and High Quality - Compatible with Dell Latitude D620 D630 D810 D830 E6430 E6520 E6530 N4050 E7270 - Connector:2 pins and 2 wires - Each item is tested before shipping ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07P3T9S3K | | Antenna Location | Laptop | | Battery Capacity | 220 amp_hours | | Battery Cell Composition | Lithium Manganese Dioxide | | Battery Cell Type | Lithium Manganese Dioxide | | Battery Weight | 4 g | | Best Sellers Rank | #9,508 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #434 in Laptop Batteries | | Brand | LeFix | | Compatible Phone Models | For Computer System | | Customer Reviews | 4.6 out of 5 stars 618 Reviews | | Item Dimensions | 2.56 x 0.79 x 0.13 inches | | Manufacturer | LeFix | | Model Name | d620 | | Number of Batteries | 1 CR2 batteries required. (included) | | Recommended Uses For Product | Laptop | | Reusability | Rechargeable | | UPC | 655160981852 | | Unit Count | 1 Count | | Voltage | 3 volts_of_direct_current | ## Product Details - **Battery Capacity:** 220 Amp Hours - **Battery Cell Composition:** Lithium Manganese Dioxide - **Brand:** LeFix - **Number of Batteries:** 1 CR2 batteries required. (included) - **Recommended Uses For Product:** Laptop ## Images ![LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600 - Image 1](https://m.media-amazon.com/images/I/51cNwuhl9LL.jpg) ![LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600 - Image 2](https://m.media-amazon.com/images/I/418aCwbqqrL.jpg) ![LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600 - Image 3](https://m.media-amazon.com/images/I/41gimj3yMiL.jpg) ![LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600 - Image 4](https://m.media-amazon.com/images/I/51I1JrkjW1L.jpg) ![LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600 - Image 5](https://m.media-amazon.com/images/I/51TYE-a+5pS.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very easy to install and works 👍 *by S***N on June 25, 2025* My computer suddenly died and wouldn't even properly boot into the BIOS. I was terrified that my computer finally died — it's an older 2017 Inspiron 15 gaming model. I have changed the HDD to an SSD and it's breathed new life into it, but it’s still old and at risk of succumbing to its age. When I looked up the blinking LED that is in front of the computer's base and what the pattern indicated, it turned out to be the CMOS battery failing. I decided it was better than nothing to attempt to replace it and see if that was the real issue. It was. Unfortunately, there was an issue with the BIOS not booting Windows correctly, but that was not because of this battery, but due to the fact that the battery before it had died and ruined the prexisting settings. Installing this battery was a breeze. I had no issues with the process, and the battery fit in the clip my laptop has just fine. I recommend this. ### ⭐⭐⭐⭐⭐ It Worked *by J***B on July 31, 2026* What can I say, it fit as advertised, fixed the laptop. ### ⭐⭐⭐⭐⭐ Good replacement for Latitude 7290. Nice that it has the sticky pad attached to the back side. *by J***B on June 10, 2026* Looks like good quality. It has a stick on pad on the back side which is good to hold it in place (remove protective peel before sticking it down). Wire is slightly longer than stock but not an issue. Works fine as expected. ## Frequently Bought Together - LeFix Replacement CMOS Battery for DELL Latitude D620 D630 D810 D830 E6420 E6430 E6520 E6530 E6540|Latitude 5480/5490,5470, 7470, 7480/7490, 7280/7290, 7390|N4050 E7270 M4600 - 60WH T54FJ Laptop Battery for Latitude E6440 E6430 E6420 E6520 E6530 E6540 E5430 E5520 E5530 E5420 Inspiron 4420 4520 4720 5420 5520 5720 7420 7520 7720 M421R M521R Vostro 3460 3560 M5Y0X N3X1D 8858X - Timetec 16GB KIT(2x8GB) DDR3L/DDR3 1600MHz(DDR3L-1600) PC3L-12800 Non-ECC Unbuffered 1.35V/1.5V CL11 2Rx8 Dual Rank 204 Pin SODIMM Laptop Notebook RAM --- ## 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.fr/products/106749262-lefix-replacement-cmos-battery-for-dell-latitude-d620-d630-d810](https://www.desertcart.fr/products/106749262-lefix-replacement-cmos-battery-for-dell-latitude-d620-d630-d810) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-09-10*