The listing, Extra Battery for Kyocera phone has ended.
fully functional battery
not a thing wrong with this battery
holds a charge for a large amount of time
I just don't have service on the phone anymore, so I have no need for the battery
if you have the small Kyocera phone; it would be great to charge it up and have it on hand to swap batteries out in your phone.
3rd pic above shows the type of phone it works in, it may also work in other Kyocera's. I would say take a look at your battery and compare.