[jhautz]

The foils is basically the cell. You dont want to tear that. Denting it is not really good either. When you dent the pack it creates a little spot on the pack that can cause a small fault inside the pack and it creates a small little hot spot so to speak. You should avioud denting it if you can.

That said... I have a nuumber of pretyy old pretty beat up packs that havent blown up or anything, I dont think those little dent s you showed in your picture are going to cause a meltdown, but beating a pack up to much will likey reduce it lifespan.

I like to put an extra layer of shrik wrap over may packs for 2 reasons. A little extra protection for the cells is one, and then when the shrink starts to look beat up and worn and torn (which it eventually does) I can take it off and put a new layer on it. It keeps the original manufacturers wrap in better condition.