How can I put the wired back

Hello im trying to put the wired back from the battery that is connected with a glue can I used a (heat Gun)? but what can I used to put it back????

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

crwdns2934109:0crwdne2934109:0

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