So my battery is good, but it's not sending power to the fuse box or anything past itself. I had a video to explain this better but it's not letting me attach it.

It loses power directly past the black box you see in the picture. It wouldn't let me upload the video. I don't know even what I don't know to try and get this fixed. . . any help is appreciated!

 

the black box is a maxifuse. its blown...replace the fuse. did you boost the battery recently?