Galaxy S7 Edge Battery Case, Coolfunny Rechargeable High Capacity Battery Charger Power 5200 mAh External Battery Charger Cover Case Battery Pack Juice Bank for Samsung Galaxy S7 Edge (Rose Gold)

Worked ok for the first month or so. I've only used it a handful of times. And now today I made sure it was fully charged. Put it on my phone, and have to keep checking it to make sure it's charging it keeps shutting off on me. Kind of annoying.