LipoSack Material?

[josh9mille]

X2 on the ammo cans. thats what i use, i even made 6 compartments in it by tack welding some dividers in it, that way if one lipo goes off there is a less chance it will take out the others. I also drilled some tiny holes in the lid so if one does explode it can release the pressure. Hopefully it works, but hopefully I will never have to find out!