I am directing all currently available positive waves in your direction.
While waiting for that to solve your problem:
Perhaps you might describe what you have, how you got there, what has been done, and what exactly is not working. Pictures might be useful.
That is not a standard commercially available battery, you got it made somewhere, that might be useful information to share as well.
I will also personally dance the Hokey-Pokey for 3.7 minutes as a show of support for your issue.