With the Battery pack, you can help your characters when they need power. From caves to mountain summits, from spaceships to dark basements. Battery pack designed as much as close to real world scales for maximum realism. You will find batteries from "watch size to car size". With the high quality that you looking for. Even in extreme close-up shots.

https://www.youtube.com/watch?v=kmZV6VEhNAY