5000mAh 2cell hardcase, protection

This is a hardcase for a diy 2s lipo pack made from a 6s pack. I strap it to my backpack with regular velcro straps, I use it to power my bike light.

This is the pack that I split into 3 smaller:
https://hobbyking.com/en_us/turnigy-5000mah-6s-40c-lipo-pack-xt90.html?___store=en_us