I put the Ruinovo in there just to get it somewhere where it wasn't scratching everything I own. Then one day I noticed I could see the Apple port and then thought what a shame that it didn't show the Android port. Then my slow-working brain figured out that hey, I could turn the battery pack around. I still have to push the button through the elastic to start it charging, but that's even a benefit because the button won't get accidentally bumped when it's in the Rat.
The Rat also fits my solar USB battery pack/charger and various cables, too.
Even better, the Rat attaches to the outside of my SwissGear laptop bag for easy access to my USB charging packs. It would have been genius had I actually planned it.