Galaxy S6 Edge Battery Case,XXBW Battery Backup Charger Flip Case Power Bank 4200mAh For Samsung Galaxy S6 edge (S6 Edge Black Pattern1) Intelligent charging system with Smart power indication Charging your phone at any time anywhere if your cell phone without electricity. Rechargeable li-polymer battery pack, recycle use for protect the environment. Security and stability, Protective circuit for overcharging, over using and short circuit. Emergency backup battery charger case for Samsung Galaxy S6 edge