Bloated LiitoKala LiFePO4, I HAVE THE FEAR!!!

I am taking a brave pill and using my Suspected used, under capasity and bloated LiitoKala LiFePO4 Battery Cells. Now with the threat of Rolling Blackouts in the UK this winter and better larger capasity battery cells being out of my budget I have no choice but to use these little fatties. Hopefully they don't go POP when I squeeze them in a compression fixture. Wish me luck.