The listing, Panasonic CR 2032 Battery for Remote Keyless Entry Keychain Fob Used has ended.
My car was totalled in an accident a few weeks ago and I saved the keyless entry for some reason. Thought maybe someone could use a battery for theirs, maybe as a backup. My car was a Lincoln but the keyfob (a picture is here) is also the same for a Ford. Your key fob might use the same battery but check before bidding. This is a Panasonic CR 2032 and it was working when the car was totalled.