--- product_id: 106749262 title: "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: "66.14 DT" currency: TND in_stock: true reviews_count: 12 category: "Le Fix" url: https://www.desertcart.tn/products/106749262-replacement-cmos-battery-for-dell-latitude-d620-d630-d810-d830 store_origin: TN region: Tunisia --- # 220mAh High Capacity 3V Lithium Manganese Dioxide Power 2-pin Connector with Extended Wire 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:** 66.14 DT **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power your legacy Dell with confidence β€” never miss a beat! ## Quick Answers - **What is this?** 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?** 66.14 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/106749262-replacement-cmos-battery-for-dell-latitude-d620-d630-d810-d830) ## 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 - β€’ **Reliable Power Boost:** 3V lithium manganese dioxide battery ensures stable, long-lasting performance. - β€’ **Lightweight & Compact:** Slim 2.56 x 0.79 x 0.13 inch design adds minimal bulk while maximizing efficiency. - β€’ **Plug & Play Convenience:** 2-pin connector with longer wire for easy installation and perfect fit. - β€’ **Seamless Dell Compatibility:** Fits a wide range of Latitude, Inspiron, XPS & Precision models for ultimate versatility. - β€’ **Tested for Quality Assurance:** Each battery is rigorously tested before shipping to guarantee reliability. ## Overview The LeFix Replacement CMOS Battery is a high-quality, rechargeable 3V lithium manganese dioxide battery designed specifically for a broad range of Dell Latitude, Inspiron, XPS, and Precision laptops. Featuring a 220mAh capacity and a 2-pin connector with an extended wire, it ensures easy installation and reliable performance. Each unit undergoes thorough testing before shipping, making it the perfect upgrade to revive your laptop’s BIOS power and keep your system running smoothly. ## 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: Worked perfect - They worked perfectly! I was able to get several of my older desktops up and running again. Review: For Dell Inspiron 7577 - Perfect fit for my Dell Inspiron 7577. ## 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 Grams | | Best Sellers Rank | #30,566 in Electronics ( See Top 100 in Electronics ) #227 in Laptop Batteries | | Brand | LeFix | | Compatible Phone Models | For Computer System | | Customer Reviews | 4.5 out of 5 stars 135 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 | 1.0 Count | | Voltage | 3 Volts (DC) | ## 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 ![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) ![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) ![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) ![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) ![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) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked perfect *by A***M on April 6, 2026* They worked perfectly! I was able to get several of my older desktops up and running again. ### ⭐⭐⭐⭐⭐ For Dell Inspiron 7577 *by E***N on July 12, 2025* Perfect fit for my Dell Inspiron 7577. ### ⭐⭐⭐⭐⭐ Very easy to install and works πŸ‘ *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 β€” 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. ## 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/106749262-replacement-cmos-battery-for-dell-latitude-d620-d630-d810-d830](https://www.desertcart.tn/products/106749262-replacement-cmos-battery-for-dell-latitude-d620-d630-d810-d830) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-21*