MP3 Player with bad port

I have 2 of these. (One went bad and I bought a second one which also went bad)

Port went bad on both so I can’t charge or retrieve files.

I disassembled both to gain direct access to the battery but am unsure how to proceed.

(Unfortunately, these have a ton of files whose backups I have lost or I wouldn’t bother.)

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

crwdns2934109:0crwdne2934109:0

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