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🔋 Power your Alienware like a pro—never miss a BIOS beat!
The Rome Tech CR2025 W CMOS Battery is a genuine 3V lithium manganese dioxide replacement designed specifically for Dell Alienware M15 and M17 laptops. Featuring a compact form factor with a 2-wire FI connector, it delivers reliable BIOS and RTC backup power with a 225mAh capacity. Engineered for durability with premium heat shrink, this battery ensures long-lasting performance and a quick, 10-minute installation process.









| ASIN | B094WC7H1Y |
| Antenna Location | Laptop |
| Battery Capacity | 225 Milliamp Hours |
| Battery Cell Type | Lithium Manganese Dioxide |
| Battery Weight | 3.2 Grams |
| Best Sellers Rank | #15,548 in Computers & Accessories ( See Top 100 in Computers & Accessories ) #842 in Laptop Batteries |
| Brand | Rome Tech |
| Built-In Media | Battery |
| Compatible Phone Models | see description |
| Customer Reviews | 4.5 4.5 out of 5 stars (20) |
| Manufacturer | Rome Tech |
| Model Name | cr2025 |
| Model Number | CMOSRTB227 |
| Number of Batteries | 1 Product Specific batteries required. |
| Reusability | Rechargeable |
| UPC | 372769847388 |
| Unit Count | 1 Count |
| Voltage | 3 Volts |
| Warranty Description | 30 Days |
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