Nothing’s worse than running out of juice while on a shoot.

Shooting a film requires creativity, patience, and fully charged batteries. Managing all of those little power supplies can be a huge headache, especially if you’re going from one location to another, but the folks over at Fangs Film Gear have come up with a nifty way to not only keep all of your batteries charged, but to also keep it all organized. Check out the tutorial below to learn how to build the “batt-cave”, a portable and inexpensive DIY battery charging station made out of an everyday tool box.