






🔋 Power your legacy devices with next-gen reliability — don’t let your BIOS go dark!
The Rome Tech RTC CMOS Battery is a high-quality 3V lithium CR2032 replacement designed for Intel NUC 5PPYH, AsRock ITX motherboards, and PlayStation 2/3 models. Featuring a 2-pin wire connector and compact form factor, it ensures easy installation and long-lasting BIOS backup power, preventing system setting loss and boot issues.









| ASIN | B08NZVFQRJ |
| Antenna Location | Laptop |
| Battery Capacity | 225 Milliamp Hours |
| Battery Cell Type | Lithium |
| Battery Weight | 23 Grams |
| Best Sellers Rank | #25,541 in Electronics ( See Top 100 in Electronics ) #172 in Laptop Batteries |
| Brand | Rome Tech |
| Compatible Phone Models | Intel NUC 5PPYH, AsRock AM1H-ITX, H110M-ITX, H270M-ITX/ac, B550M ITX Motherboards, PlayStation 2 Slim, PlayStation 2 (70000, 75000), PlayStation 3 (CECHA01 CECHB01 CECHE01 CECHH01) |
| Customer Reviews | 4.2 4.2 out of 5 stars (134) |
| Manufacturer | Rome Tech |
| Model Name | cr2032 |
| Model Number | CMOSRTB227 |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Reusability | Single Use |
| UPC | 372769846145 |
| Unit Count | 1.0 Count |
| Voltage | 3 Volts |
| Warranty Description | 30 Days |
D**R
Fit perfectly in my NUC 10
My NUC 10 refused to power up. The little green light was on inside, but that was it. After re-seating memory and the SSD, I still was unable to boot. When I filed a ticket with Intel, the recommendation was to disconnect the battery and then reconnect to clear any issues with the CMOS. Getting to the battery is painful, so I decided to replace the almost 3 year old device with this new one. Replacing a battery like this is all about the connector. When this connector slid right into the board connector for the battery, I sang a happy tune. The replacement would have been a solid success if I hadn't ripped off one of the board connectors for the radio's antenna when disassembling the board. Even without that connection, my NUC now powers up and everything works.
K**S
Reversed Polarity as I Needed and easy to install to replace old battery
After tearing down my old HTPC after 5 years of loyal use, I upgraded the CPU to find that every time I unplug it I lose my OC settings. I was a little peeved when I realized this was a soldered CMOS instead of the standard button in a holder on the board. Then after research I found out my Asrock B450 itx Mobo also needed reverse polarity which made it even more of a needle in the haystack. This did the trick, over night shipping combined with wiring as promised, it solved my issue. Can't speak to longevity of course, but for $10 by the time I replace this again, it will be time for a new mobo anyway. Added plus, the double sided tape made it suuuuper easy to remount this right where the old battery was attached. No complaints from me.
D**L
Fat PS3
Worked on my CECHA01 model PS3. I've had it in for about a year so far and the battery still works (as it should).
R**E
Wrong Battery Polarity!
buyers be aware: inverted battery polarity! My motherboard won’t boot up because of this. And their profile picture is correct. Amazon you need to ban this product before it causes more damages!
R**E
perfect fit.
Needed this to replace a dead NVRAM battery in my computer. I could've soldered one of my own, but the price was sufficient to make it a worthwhile purchase and save me the effort.
R**Z
Low battery voltage, polarity inverted
Got this for a Gigabyte Brix GB-BXi3-5010 NUC-like mini PC from 2015, its battery died in 2023, whew! This Rome Tech battery connector is correct for that device, however, the polarity was inverted so I had to carefully pull back the mini plastic tabs, remove the pins and reinsert in the connector. I also checked the battery voltage at 3.14 volts, but I would have expected ~3.3 volts if a new battery. The date on the plastic tag on the cable says "0922" (September 2022) and this was bought on October 2023, so, one year in the depot, plus who knows how much longer since the battery left the factory. Hmm... Not really super happy, but I hope it at least gives a couple more years for this basic office computer.
A**S
Polarity was reversed on one of them
I ordered two of the same ones and the polarity was reversed on one of them. Thankfully we checked it before installing it. Other than that, they seem to be working okay.
R**K
Works for ASRock Z490M-IFX/AC
Worked for ASRock Z490M-ITX/AC. The polarity matched. If you have graphics card with the motherboard, you will have to remove it to replace the battery.
C**N
Si estás buscando una batería CMOS para reemplazar la original de una PS3 FAT, esta batería es compatible y funciona a la perfección, lo recomiendo mucho.
M**A
Excelente remplazo para la tarjeta madre asrock
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