There must be something to tighten the contact between the phone and the battery, every other manufacturer uses glue, Fairphone tried to solve this problem with

There must be something to tighten the contact between the phone and the battery, every other manufacturer uses glue, Fairphone tried to solve this problem with plastic clips before and it wasn't reliable enough, so I'm certainly not gonna blame them for doing it with the most effective method that doesn't compromise repairability.