This battery is a replacement for Panasonic PR2330
These are replacement watch batteries and replacement small electronics batteries.
I ordered batteries that didn't ft the receptacles I had ordered specifically for them. One call and Bmart offered to replace them for me ASAP.
I bought this battery because I was told my HP Pavilion DV4 entertainment notebook needed a 2330 battery for the CMOS. However, opening it up and finding the CMOS battery, I may actually have needed a 2032. I have yet to swap the battery as I'm not sure yet if it's the right one. I'll have to get a professional to look at it to let me know. Even if that's the case, I DO have a spare one of tho