Gray they have different capacity, more used = more storage!
battery: 100.000;
bullet: 150;
missile: 50;
emp missile: 100;
nuke: 50;
mines: 100.
you can also change this!
go to: SypplyCrates(mod folder) / Crates / (choose the crate) / (.txt file). Then scroll down and change these values(they need to be the same):