VS Seeker Battery Pack

This battery holder is based on the VS Seeker from Pokemon Leaf Green and Fire Red. It has a hole that can be used to attach a ring of any sort to attach the whole unit to a bag or your pants. The battery it holds is a Morphie Powerstation Mini(https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=powerstation+mini). I would guess you can alter the design to fit other bigger or smaller models. This model holds a 2500 mAh battery. There are vents in the back to help the ba