--- product_id: 523926684 title: "Rome Tech ML1220 CMOS Battery for Dell Precision 5510 / Dell Precision 5520 /..." brand: "rome tech" price: "₨285" currency: SCR in_stock: true reviews_count: 3 category: "Rome Tech" url: https://www.desertcart.sc/products/523926684-rome-tech-ml1220-cmos-battery-for-dell-precision-5510-dell store_origin: SC region: Seychelles --- # 225mAh Capacity 3V Rechargeable Power 2-Wire Connector Simplicity Rome Tech ML1220 CMOS Battery for Dell Precision 5510 / Dell Precision 5520 /... **Brand:** rome tech **Price:** ₨285 **Availability:** ✅ In Stock ## Summary > 🔋 Power your precision with Rome Tech’s sleek, rechargeable CMOS battery—because your laptop deserves the best backup. ## Quick Answers - **What is this?** Rome Tech ML1220 CMOS Battery for Dell Precision 5510 / Dell Precision 5520 /... by rome tech - **How much does it cost?** ₨285 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/523926684-rome-tech-ml1220-cmos-battery-for-dell-precision-5510-dell) ## 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 - • **Plug & Play Installation:** Two-wire cable setup means you’re back up and running in under 10 minutes—no tech headaches required. - • **Premium Quality Assurance:** Engineered for long-lasting reliability with heat shrink protection to withstand daily laptop demands. - • **Compact & Lightweight Design:** At just 3 grams, this tiny powerhouse fits seamlessly into your laptop without bulk or hassle. - • **Reliable Rechargeable Backup:** Keep your Dell Precision alive with a battery that recharges itself to full 3V power after installation. - • **Tailored for Dell Precision & Latitude:** Perfectly compatible with Dell Precision 5510-5540 series and Latitude 5290 2-in-1 for seamless integration. ## Overview The Rome Tech ML1220 CMOS BIOS Battery is a rechargeable 3V backup battery designed specifically for Dell Precision 5510, 5520, 5530, 5540, and Latitude 5290 2-in-1 laptops. Featuring a compact 3-gram design and a simple 2-wire connector, it offers quick installation and reliable long-term performance with heat shrink protection. This premium replacement battery recharges to full voltage after installation, ensuring your laptop’s RTC and BIOS settings remain intact. ## Description Buy Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Ordered New, Recieved used instead. - Ordered New, Recieved used instead. Review: Low voltage - I measured voltage is 2.6 Volts not 3 volts . I returned. ## Features - Rome Tech BIOS CMOS battery ML1220 best suits to replace your broken or non-working old battery - we provide premium quality only. The battery may arrive at 2.6–2.8 V; the computer will recharge it to 3.0 V after installation for normal use. - RTC rechargeable battery compatible with such models as: Dell Precision 5510 / Dell Precision 5520 / Dell Precision 5530 / Dell Precision 5540 / Dell Latitude 5290 2-in-1 - Enjoy extended reliability of the CMOS 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 3V battery connector with 2 pins and 2 wires - Quick and simple battery CMOS installation takes only 10 minutes of your time. Try our customer service for resolving any issues during battery replacement ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BSGSWHM2 | | Antenna Location | Laptop | | Battery Capacity | 225 Milliamp Hours | | Battery Cell Composition | Other Than Listed | | Battery Cell Type | Other Than Listed | | Battery Weight | 3 Grams | | Best Sellers Rank | #17,626 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #991 in Laptop Batteries | | Brand | Rome Tech | | Built-In Media | battery | | Compatible Phone Models | Dell Precision 5510 / Dell Precision 5520 / Dell Precision 5530 / Dell Precision 5540 ? / Dell Latitude 5290 2-in-1 | | Customer Reviews | 2.9 out of 5 stars 5 Reviews | | Manufacturer | Rome Tech | | Model Name | ml1220 | | Model Number | 22SLIMPNML1220S | | Number of Batteries | 1 C batteries required. (included) | | Recommended Uses For Product | Laptop | | Reusability | Single Use | | UPC | 712302251898 | | Unit Count | 1.0 Count | | Voltage | 3 Volts | | Warranty Description | 30 Days | ## Product Details - **Battery Capacity:** 225 Milliamp Hours - **Battery Cell Composition:** Other Than Listed - **Brand:** Rome Tech - **Number of Batteries:** 1 C batteries required. (included) - **Recommended Uses For Product:** Laptop ## Images ![Rome Tech ML1220 CMOS Battery for Dell Precision 5510 / Dell Precision 5520 /... - Image 1](https://m.media-amazon.com/images/I/61jTNKfIkVL.jpg) ![Rome Tech ML1220 CMOS Battery for Dell Precision 5510 / Dell Precision 5520 /... - Image 2](https://m.media-amazon.com/images/I/61iVpAFPkML.jpg) ![Rome Tech ML1220 CMOS Battery for Dell Precision 5510 / Dell Precision 5520 /... - Image 3](https://m.media-amazon.com/images/I/61zb2S4kc-L.jpg) ![Rome Tech ML1220 CMOS Battery for Dell Precision 5510 / Dell Precision 5520 /... - Image 4](https://m.media-amazon.com/images/I/517T-Hw75BL.jpg) ![Rome Tech ML1220 CMOS Battery for Dell Precision 5510 / Dell Precision 5520 /... - Image 5](https://m.media-amazon.com/images/I/51tS-8d4+QL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐ Ordered New, Recieved used instead. *by W***L on October 14, 2025* Ordered New, Recieved used instead. ### ⭐⭐⭐ Low voltage *by S***N on December 6, 2024* I measured voltage is 2.6 Volts not 3 volts . I returned. ### ⭐ Deceiving. Not 3 Volts battery. *by L***R on January 6, 2025* This battery is advertised as a 3 Volts but it only has 2.61 Volts upon arrival. Deceiving. The original battery that I am replacing has 2.6 volts but the laptop has good 5 years or more of use, doesn’t make sense to replace with this supposedly “new” battery and doesn’t make sense why the sellers advertise something as 3 Volts if it only has 2.61 volts. Very disappointing. I don’t recommend. ## Frequently Bought Together - Rome Tech ML1220 CMOS BIOS Battery for Dell Precision 5510, 5520, 5530, 5540, 5290 2-in-1 - Rechargeable Laptop Backup RTC with 2 Wire Cable - Replacement Keyboard for Dell XPS 15 9550 9560 9570, Precision 5510 5520 5530 5540 & inspiron 15 7558 7568 Laptop, Dell Precision 5510 Keyboard with Backlit US Layout P/N: 0VC22N 0GDT9F --- ## 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.sc/products/523926684-rome-tech-ml1220-cmos-battery-for-dell-precision-5510-dell](https://www.desertcart.sc/products/523926684-rome-tech-ml1220-cmos-battery-for-dell-precision-5510-dell) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-07-10*