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🔋 Power your precision with Rome Tech’s sleek, rechargeable BIOS battery—never miss a beat!
The Rome Tech ML1220 CMOS BIOS Battery is a rechargeable 3V lithium-ion backup battery designed specifically for Dell Precision 5510, 5520, 5530, 5540, and Latitude 5290 2-in-1 laptops. Featuring a compact size and 2-wire connector, it ensures quick installation and reliable RTC performance, backed by premium quality and customer support.





| ASIN | B0BSGSWHM2 |
| Antenna Location | Laptop |
| Battery Capacity | 225 Milliamp Hours |
| Battery Cell Composition | Lithium Ion |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 3 Grams |
| Best Sellers Rank | #126,581 in Electronics ( See Top 100 in Electronics ) #2,026 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 |
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