YESOO8482; SMART VIEW Protective Case Cover With 5200mAh NFC Support Extended Battery Including BLACK Back Cover And Wall Charger For Samsung Galaxy S4 SIV i9500 (S View: Black) Capacity: 5200mAh (Class 10 - High Quality / NFC) Voltage: 3.7V Cell type: Lithium-ion Technology This Battery Is Equipped With An NFC Antenna Excellent quality at a great price.