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🔋 Power your legacy tech with confidence—because your BIOS deserves the best!
The Rome Tech RTC 2/V15H is a rechargeable 15mAh, 2.4V Ni-MH CMOS battery designed as a direct BIOS replacement for Sony VAIO VGN-FS Series and VPCCW21FX laptops. Featuring a compact form factor with a 2-pin wire connector and heat-shrink protection, it offers easy installation and reliable long-term performance to keep your device’s BIOS clock and settings powered without interruption.






| Amperage | 15 milliamps |
| Antenna Location | Laptop |
| Asin | B08FJ99ZGN |
| Battery Capacity | 15 milliamp_hours |
| Battery Cell Type | NiMH |
| Best Sellers Rank | #37,765 in Computers & Accessories (See Top 100 in Computers & Accessories) #2,627 in Laptop Batteries |
| Brand | Rome Tech |
| Compatible Phone Models | read description |
| Customer Reviews | 4.8 4.8 out of 5 stars (9) 4.8 out of 5 stars |
| Included Components | battery |
| Manufacturer | Rome Tech |
| Model Name | CMOS Battery |
| Model Number | CMOSRTB227 |
| Number Of Batteries | 1 Product Specific batteries required. |
| Reusability | Rechargeable |
| Unit Count | 1 Count |
| Upc | 308135951144 |
| Voltage | 2.4 volts |
| Warranty Description | 30 Days |
User
Works.
Just what I needed for my ancient Toshiba, although I had to splice in the original connector. It arrived charged, so it wasn't sitting on a shelf somewhere for years.
User
it's work
work.
Trustpilot
2 weeks ago
1 week ago