Without a picture, my guess is [link|https://www.amazon.com/CR2032-Lithium-Battery-Solder-Tabs/dp/B00ES28AT4/ref=asc_df_B00ES28AT4/?tag=hyprod-20&linkCode=df0&hvadid=642125734747&hvpos=&hvnetw=g&hvrand=17286515773531076&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1021225&hvtargid=pla-1948724849734&psc=1&gclid=CjwKCAjw04yjBhApEiwAJcvNoTLwNUNXdZ5O0jpf_pF8j0FhwgRM3D5xMcvuGLkX-1H6Dca-jmbBfBoCNnQQAvD_BwE|this|new_window=true] battery. It is a 3V CR2032 with solder tabs. If not, search ***3v coin with solder tabs***. It should also ***not*** be rechargeable.
I could not find any 2V coin batteries on AMZ. They are either 1.2V or 3V.
It may also be less expensive to find a solder in holder for the battery and use a standard CR2032 since AMZ seems to only have them in quantity and you will likely never use them.