Motorcycle Battery box (internal bag hardcase)

I needed a new battery box for my smaller 4cell battery to replace the huge lead acid battery I had before on my rebel bike. Although I'm sure there are plenty of other uses for a basic box like this as well!

I found a nice leather bag on amazon that was the right style, although it was too tall and needed to be cut in half to fit this box size.

I was able to easily cut it shorter.. but I wanted a durable solid case inside, both to protect the battery, and to keep water from soaking throug