--- product_id: 163067216 title: "LeFix ML1220 Rechargeable CMOS RTC Battery with Leads Cable Plug 2 Pins 2 Wires 1.25mm Pitch (CMOS, Laptop, Notebook, Motherboard, Bristlebots) Check Connector Specification Very Carefully" brand: "lefix" price: "73 zΕ‚" currency: PLN in_stock: true reviews_count: 10 category: "Le Fix" url: https://www.desertcart.pl/products/163067216-lefix-ml1220-rechargeable-cmos-rtc-battery-with-leads-cable-plug store_origin: PL region: Poland --- # 8mA Max Pulse Discharge 3V Rechargeable Power 2-Pin Connector with Leads LeFix ML1220 Rechargeable CMOS RTC Battery with Leads Cable Plug 2 Pins 2 Wires 1.25mm Pitch (CMOS, Laptop, Notebook, Motherboard, Bristlebots) Check Connector Specification Very Carefully **Brand:** lefix **Price:** 73 zΕ‚ **Availability:** βœ… In Stock ## Summary > πŸ”‹ Power up your BIOS, never miss a tick! ## Quick Answers - **What is this?** LeFix ML1220 Rechargeable CMOS RTC Battery with Leads Cable Plug 2 Pins 2 Wires 1.25mm Pitch (CMOS, Laptop, Notebook, Motherboard, Bristlebots) Check Connector Specification Very Carefully by lefix - **How much does it cost?** 73 zΕ‚ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/163067216-lefix-ml1220-rechargeable-cmos-rtc-battery-with-leads-cable-plug) ## 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€’ **Compact & Lightweight:** Slim 12.5x2mm size and 5.5g weight fit effortlessly in laptops and notebooks. - β€’ **Fix Critical BIOS Errors:** Eliminate system battery, CMOS checksum, and real-time clock errors instantly. - β€’ **Precision 2-Pin Connector:** Plug-and-play design ensures seamless motherboard compatibility. - β€’ **Wide Device Compatibility:** Perfect for Acer, Asus, Toshiba, Samsung modelsβ€”future-proof your gear. - β€’ **Reliable 3V Rechargeable Battery:** Keep your system clock and BIOS error-free with consistent power. ## Overview The LeFix ML1220 is a rechargeable 3V CMOS battery with a 17mAh capacity and 8mA max pulse discharge current, designed with a 2-pin connector and leads cable for easy replacement in laptops and motherboards. Compatible with major brands like Acer, Asus, Toshiba, and Samsung, it resolves common BIOS and RTC errors, ensuring your device boots flawlessly every time. ## Description Item Description Great Part to replace the broken and non working CMOS Battery for ML1220 ML 1220 Will fix the following error codes: Systems battery error / System CMOS checksum bad / System Timer error / Real-Time Clock Error Cable Specification:2 Wires - 2 Pin Connector Voltage: 3 V Nominal Capacity: 17mAh Max Pulse Discharge Current: 8Ma Dimension: 12.5 x 2mm Weight: 5.5g Compatibility For Acer Travelmate 2300 4000 SERIES 2303LCi 4002LCi For Asus 1101HA 1005HA 1008HA 1005HAB For Acer Aspire 5920 5920G For Toshiba Satellite U300 U400 U405D For Samsung NP900X3A-A02US 900X Package Includes: 1 x CMOS Battery for ML1220 ML 1220 Review: Perfect. Just what I needed - This is the battery I needed when mine died. What else can I say? That said, I wanted to make a point, because it's not been the first time excessive packaging was used when a small bubble-wrap envelope would have been the RIGHT choice. In this picture you see a small battery on a static bag on a paper envelope. Which was in this over-sized box. Imagine my surprise when I received notification that the package wasn't delivered because it wouldn't fit in my mailbox. It's a small battery. Really folks? Can't we perhaps fix that broken packaging algorithm? Maybe enough attention to this problem and they'll fix it. Please people, pay attention and give a care. Review: What I needed - I have a Dell Latitude tablet (Similar to a Microsoft Surface). I was having issues rebooting because the BIOS battery was dead and not charging. I could not find the exact battery connector for my model, but this battery was the right version and size. I had to cut the connect off the end and splice in my connector. The tablet now boots up without BIOS errors. If you have a device that this battery fits, you should have experience taking apart tablets and cell phones before you attempt the replacement. ## Features - CMOS Battery Type:ML1220 Rechargeable - Voltage: 3V - Nominal Capacity: 17mAh - Max Pulse Discharge Current: 8Ma - Weight: 5.5g ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07XQSMNPG | | Amperage | 3 Amps | | Antenna Location | Clock, Laptop | | Battery Capacity | 17 Milliamp Hours | | Battery Cell Composition | Lithium Manganese Dioxide | | Battery Cell Type | Lithium Manganese Dioxide | | Battery Weight | 4 Grams | | Best Sellers Rank | #68,135 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #5,028 in Laptop Batteries | | Brand | LeFix | | Compatible Phone Models | For Certain laptop Models | | Customer Reviews | 4.0 out of 5 stars 100 Reviews | | Item Dimensions | 1.77 x 0.47 x 0.08 inches | | Item Weight | 5.5 Grams | | Manufacturer | LeFix | | Model Name | ml1220 | | Model Number | ML1220 | | Number of Batteries | 1 CR2 batteries required. (included) | | Recommended Uses For Product | Clock, Laptop | | Reusability | Rechargeable | | UPC | 655160982156 | | Unit Count | 1 Count | | Voltage | 3 Volts | ## Product Details - **Battery Capacity:** 17 Milliamp Hours - **Battery Cell Composition:** Lithium Manganese Dioxide - **Brand:** LeFix - **Number of Batteries:** 1 CR2 batteries required. (included) - **Recommended Uses For Product:** Clock, Laptop ## Images ![LeFix ML1220 Rechargeable CMOS RTC Battery with Leads Cable Plug 2 Pins 2 Wires 1.25mm Pitch (CMOS, Laptop, Notebook, Motherboard, Bristlebots) Check Connector Specification Very Carefully - Image 1](https://m.media-amazon.com/images/I/51fIJ88bYDL.jpg) ## Questions & Answers **Q: Is this battery the same as a 3v cr2016 type battery? that is what my laptop currently has.** A: You need to focus on the connector specification.CR2016,means,diameter of battery is 20mm,and thickness is 1.6mm. Ml1220,means diameter is 12mm,thickness is 2.0mm. **Q: What are the dimensions? thickness and diameter. NOT the package dimensions (useless information),** A: Ml1220,means diameter is 12mm,thickness is 2mm.Please check the connector.Please don't buy to try if you are not sure the connector specification. **Q: Will this product work in my asus k556u notebook/intel core i7?** A: we are not sure...please check the connector specification.this one,has,2 pins and 2 wires.pitch is 1.25mm. **Q: Will this fit samsung np- rf511 cmos bios battery and cable?** A: we are not sure.please check the connector specification.this one,has 2 pins and 2 wires.the pitch is 1.25mm. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect. Just what I needed *by N***N on December 3, 2019* This is the battery I needed when mine died. What else can I say? That said, I wanted to make a point, because it's not been the first time excessive packaging was used when a small bubble-wrap envelope would have been the RIGHT choice. In this picture you see a small battery on a static bag on a paper envelope. Which was in this over-sized box. Imagine my surprise when I received notification that the package wasn't delivered because it wouldn't fit in my mailbox. It's a small battery. Really folks? Can't we perhaps fix that broken packaging algorithm? Maybe enough attention to this problem and they'll fix it. Please people, pay attention and give a care. ### ⭐⭐⭐⭐⭐ What I needed *by H***D on January 22, 2020* I have a Dell Latitude tablet (Similar to a Microsoft Surface). I was having issues rebooting because the BIOS battery was dead and not charging. I could not find the exact battery connector for my model, but this battery was the right version and size. I had to cut the connect off the end and splice in my connector. The tablet now boots up without BIOS errors. If you have a device that this battery fits, you should have experience taking apart tablets and cell phones before you attempt the replacement. ### ⭐⭐⭐⭐ Correct product is Important *by I***D on July 9, 2020* I ordered CMOS battery, and I have given the Model # also, the battery socket that goes on the motherboard is not right size. I did sort try to take out the battery from the side that is wires soldered to the battery. I am not going to return the battery, please see the attached pics to see the difference. I have attached the pics the two wires the one with smaller socket is the original sony battery with the model number ML 1220-M3(HLF)-F 0424.12 for Sony Vaio laptop model SVS151A11L. ## Frequently Bought Together - LeFix ML1220 Rechargeable CMOS RTC Battery with Leads Cable Plug 2 Pins 2 Wires 1.25mm Pitch (CMOS, Laptop, Notebook, Motherboard, Bristlebots) Check Connector Specification Very Carefully - Rome Tech CMOS Battery for Dell Vostro 15 5510 - Laptop Backup BIOS RTC 3V ML1220 with 2 Wire Cable - Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT16G4SFRA32A --- ## 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.pl/products/163067216-lefix-ml1220-rechargeable-cmos-rtc-battery-with-leads-cable-plug](https://www.desertcart.pl/products/163067216-lefix-ml1220-rechargeable-cmos-rtc-battery-with-leads-cable-plug) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-07-07*