--- product_id: 241131084 title: "ML1220 CMOS Battery for Dell Vostro 15 5510 – BIOS RTC ML1220 XPS 13 Rechargeable CMOS Battery for PC Motherboard with 2 Wire Cable (1-Pack)" brand: "rome tech" price: "47.64 DT" currency: TND in_stock: true reviews_count: 8 category: "Rome Tech" url: https://www.desertcart.tn/products/241131084-ml1220-cmos-battery-for-dell-vostro-15-5510-bios-rtc store_origin: TN region: Tunisia --- # 200mAh High Capacity 3V Rechargeable Power Plug & Play 2-Wire Connector ML1220 CMOS Battery for Dell Vostro 15 5510 – BIOS RTC ML1220 XPS 13 Rechargeable CMOS Battery for PC Motherboard with 2 Wire Cable (1-Pack) **Brand:** rome tech **Price:** 47.64 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power your productivity with Rome Tech’s sleek CMOS battery—never miss a beat! ## Quick Answers - **What is this?** ML1220 CMOS Battery for Dell Vostro 15 5510 – BIOS RTC ML1220 XPS 13 Rechargeable CMOS Battery for PC Motherboard with 2 Wire Cable (1-Pack) by rome tech - **How much does it cost?** 47.64 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/241131084-ml1220-cmos-battery-for-dell-vostro-15-5510-bios-rtc) ## Best For - rome tech enthusiasts ## Why This Product - Trusted rome tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Universal Fit:** Slim design fits Dell Vostro 15 5510, XPS 13, and other compatible laptops effortlessly. - • **Trusted by Professionals:** Top-rated with 4.4 stars and proven to fix power-on issues and boot loops. - • **Long-lasting CMOS Stability:** High-quality heat shrink ensures durability and extended battery life. - • **Quick 10-Minute Installation:** Simple plug-and-play with 2-wire connector—get your laptop running fast. - • **Reliable 3V Rechargeable Battery:** Pre-charged and auto-recharges to full voltage for seamless BIOS performance. ## Overview The Rome Tech ML1220 CMOS Battery is a rechargeable 3V lithium-ion battery designed for Dell Vostro 15 5510 and XPS 13 laptops. Featuring a compact size with a 2-wire connector, it offers quick installation and reliable BIOS power retention. With a 200mAh capacity and durable heat shrink protection, it ensures long-lasting performance and resolves common boot and power issues. ## Description Product description PERFECT CMOS BATTERY FOR YOUR DEVICE BIOS CMOS RTC Lithium-Ion Coin Cell Batteries Rome Tech Lithium Coin Cell Batteries keep laptops and small electronics powered and ready. Ideal for notebooks, netbooks, laptops, portable computers, warehouse scanners, household devices, and much more. Rome Tech CMOS RTC batteries are small but effective batteries that offer long-lasting battery life coupled with safety and reliability. Small but Powerful Boasting high power in a small size, Rome Tech zero-mercury lithium-ion batteries are built to last and designed to perform in extreme environments. Buy a Rome Tech RTC CMOS replacement battery for home and office use. Easy Replacement Rome Tech CMOS batteries are simple to replace in a wide variety of laptops and netbook devices. Each battery includes an identification label so you can easily verify the authenticity and a matching connector for 100% compatibility. Housed in protective packaging, the CMOS RTC battery can be easily removed and installed without soldering or modifications. Replace original OEM battery with a high-quality Rome Tech RTC CMOS BIOS battery Contains one Rome Tech 1220 Lithium coin-type battery Holds power for up to 10 years in storage, ensuring you have CMOS batteries ready when you need them Cell size: 1220; IEC: ML1220; Type: Lithium Coin; Volt: 3 These lithium batteries can withstand a wide temperature range, from -22º to 140º F CMOS Battery Standard Technical Specification UNIVERSAL BATTERY THAT COMPATIBLE NOT ONLY WITH LAPTOPS BUT WITH OTHER DEVICES Suitable for other devices Delivers long-lasting, dependable performance in specialty devices like laptops, scanners, remotes, keyless entry systems, glucose monitors, toys, and games Summary These reliable and durable Rome Tech CMOS RTC Coin Lithium-Ion Batteries are able to withstand a wide range of temperatures (from -22º to 140º F) and can hold power in storage for up to 10 years, giving you coin battery power you can depend on. Responsibly designed with zero mercury and easy to open the packaging to save time and the environment, it’s easy to see why Rome Tech CMOS RTC Lithium-Ion Coin Batteries are the right choice for your specialty devices. Review: Fits and works on a 2016 Dell XPS 13 - Fits and works on a 2016 Dell XPS 13 perfectly. If your laptop doesn’t turn on when you press the power button, it’s likely that the CMOS battery is dead. Once I replaced it with this battery, my laptop boots up! Review: Razor cmos - Direct fit for Razor Blade 15 laptop. Fixed power on loop problem. ## Features - PLEASE NOTE: ML1220 batteries are rechargeable and come pre-charged to 2.7-2.8V. The computer will recharge them to 3v after installation. The battery may arrive at 2.6–2.8 V; the computer will recharge it to 3.0 V after installation for normal use. - Compatible with Dell Vostro 15 5510 - Enjoy extended reliability of the ML1220 battery and heat shrink of a high caliber - the CMOS battery will last you for a long time - The size of the entire unit is extremely small - will fit in almost any electronic device requires Battery connector with 2 pins and 2 wires - Quick and simple battery installation takes only 10 minutes of your time. Try our customer service for resolving any issues during battery replacement ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08LBR15JK | | Antenna Location | Laptop | | Battery Capacity | 200 Milliamp Hours | | Battery Cell Composition | Lithium Ion | | Battery Cell Type | Lithium Ion | | Battery Weight | 1 Ounces | | Best Sellers Rank | #28,316 in Electronics ( See Top 100 in Electronics ) #197 in Laptop Batteries | | Brand | Rome Tech | | Compatible Phone Models | DELL XPS 15 13 9343 9350 9360 9365 | | Customer Reviews | 4.4 out of 5 stars 144 Reviews | | Global Trade Identification Number | 00308135951618 | | Manufacturer | Rome Tech | | Model Name | ml1220 | | Model Number | CMOSRTB227 | | Number of Batteries | 1 Lithium Ion batteries required. | | Recommended Uses For Product | Laptop | | Reusability | Single Use | | UPC | 308135951618 | | Unit Count | 1.0 Count | | Voltage | 3 Volts | | Warranty Description | 30 Days | ## Product Details - **Battery Capacity:** 200 Milliamp Hours - **Battery Cell Composition:** Lithium Ion - **Brand:** Rome Tech - **Number of Batteries:** 1 Lithium Ion batteries required. - **Recommended Uses For Product:** Laptop ## Images ![ML1220 CMOS Battery for Dell Vostro 15 5510 – BIOS RTC ML1220 XPS 13 Rechargeable CMOS Battery for PC Motherboard with 2 Wire Cable (1-Pack) - Image 1](https://m.media-amazon.com/images/I/61AFgkSGbUL.jpg) ![ML1220 CMOS Battery for Dell Vostro 15 5510 – BIOS RTC ML1220 XPS 13 Rechargeable CMOS Battery for PC Motherboard with 2 Wire Cable (1-Pack) - Image 2](https://m.media-amazon.com/images/I/61rmnyC5u6L.jpg) ![ML1220 CMOS Battery for Dell Vostro 15 5510 – BIOS RTC ML1220 XPS 13 Rechargeable CMOS Battery for PC Motherboard with 2 Wire Cable (1-Pack) - Image 3](https://m.media-amazon.com/images/I/61zb2S4kc-L.jpg) ![ML1220 CMOS Battery for Dell Vostro 15 5510 – BIOS RTC ML1220 XPS 13 Rechargeable CMOS Battery for PC Motherboard with 2 Wire Cable (1-Pack) - Image 4](https://m.media-amazon.com/images/I/517T-Hw75BL.jpg) ![ML1220 CMOS Battery for Dell Vostro 15 5510 – BIOS RTC ML1220 XPS 13 Rechargeable CMOS Battery for PC Motherboard with 2 Wire Cable (1-Pack) - Image 5](https://m.media-amazon.com/images/I/51Mch6tobjL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What are the dimensions: thickness and diameter.? not package dimensions (useless information).** A: Hi, cable is 4.5cm. Battery dims are 12.5mm in diameter and 2mm in height. **Q: Do the metal pins go up or down and are you supposed to hold on button while installing** A: I installed my CMOS on a Dell XPS-15 Model 9570. CONDUCT YOUR RESEARCH VIA GOOGLE SEARCH! Some very-explicit instructional monologues and YouTube videos, which I did access, for my removal and installation. You do know, you must-LITERALLY-disassemble the entire computer. AND YOU MUST HAVE ON HAND, FOR REASSEMBLY, 1) high-quality grease, to reattach the heat sink, to the CPU, and, 2) a good, safe solvent, as 91% isopropyl alcohol, to COMPLETELY remove the old grease, and, 3)some super-fine grit sandpaper or emory cloth, to remove old grease residue, AND POLISH THE HEAT SINK AND CPU CONTACT SURFACES, TO A MIRROR FINISH---NO JOKE! And it is only a grease, not a glue or adhesive, you will remove, and reapply. Male plug only inserts into female receptacle one way, as a security feature, to prevent reverse-polarity mistake. There is no physical reset "button" to actuate; you must reset the Real Time Clock (RTC) via settings---easy task for the RTC set. AGAIN, FIND YOUR MONOLOGUES AND VIDEOS. **Q: Will this work for a XPS 9550?** A: Hello, Yes, this RTC CMOS battery work, **Q: Will this work in an XPS 15 9530?** A: Yes, it worked fine in mine. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fits and works on a 2016 Dell XPS 13 *by T***5 on January 27, 2026* Fits and works on a 2016 Dell XPS 13 perfectly. If your laptop doesn’t turn on when you press the power button, it’s likely that the CMOS battery is dead. Once I replaced it with this battery, my laptop boots up! ### ⭐⭐⭐⭐⭐ Razor cmos *by J***S on March 1, 2026* Direct fit for Razor Blade 15 laptop. Fixed power on loop problem. ### ⭐⭐⭐⭐⭐ Great team behind product. *by V***D on July 3, 2025* Great seller - great product. Fixed my XPS - thanks Rome Tech! ## Frequently Bought Together - Rome Tech CMOS Battery for Dell Vostro 15 5510 - Laptop Backup BIOS RTC 3V ML1220 with 2 Wire Cable - JOREST 38Pcs Small Precision Screwdriver Set with Torx T5, T6, Y00, Mini Repair Tool Kit for Macbook, Computer, Laptop, iPhone, PS4 PS5, Xbox, Switch, Eyeglasses, Watch, Ring Doorbell, Electronic, etc - ARCTIC MX-4 (incl. Spatula, 4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application --- ## 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.tn/products/241131084-ml1220-cmos-battery-for-dell-vostro-15-5510-bios-rtc](https://www.desertcart.tn/products/241131084-ml1220-cmos-battery-for-dell-vostro-15-5510-bios-rtc) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-07*