Source for Replacement Battery?

Anybody have a source for a replacement battery for the iPad Mini 4? Mine has been damaged by exposure to water and I suspect the battery is toast. I can't find an outlet for a replacement, though.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0