This is a video of my DYI portable toolbox battery charger bunker. This setup is to safely charge my lipo batteries at home and while I'm traveling. What I like about this toolbox is it's a single spot where I can keep my charger and batteries for a trip to the field. I also keep them in lipo bags as well while charging in the toolbox.
I think I might also line the bottom of the toolbox with a ceramic tile for added fire protection. You can also use an old ammo box instead of a metal toolbox.
It was simple to build all you need is a metal toolbox, charger, rubber grommet or brush on electrical tape. See the video.