u/WoodpeckerAlarming11

I have three NB10000 Gen1. They all swollen up, I was using them for some time like that, they charged no problem. But I just read it that it is dangerous to use swollen power banks, so it looks like I will have to dispose them, quite disappointing. Do you know any light weight alternatives to Nitecore? I'm hesitating to spend another 300 euros (I need 30000 for my hikes) and then in two years to throw it away again...