ive obtained a large ammo case from work and plan to get more as i start building a pees(portable emergancy energy producer). the case is water proof and i believe it is emp proof (due to the rounds being electrically shot from my weapons system and needs protection from electronic waves). it will have large rechargeable batteries. an interior mounted plug and mini solar panel will be within this case. ive been through schools and trainings to understand electronics so hopefully i can get this working without blowing anything up lol. whats everyones input on this future project of mine? and does anyone have any ideas that should be implemented/warning i should know?