SANOXY&reg; 3200mAh Power Bank Backup Battery Charger Case Stand For Samsung Galaxy S4 i9500 (BLACK) Suitable for: Samsung Galaxy S IV S4 i9500 AND Capacity: 3200mAh Output Voltage: 5V Output Current: 500mAh Input Voltage: 5V Input Current: 400-500mAh Charing time: approx. 1.5h Dual IC chips protection, anti overcharging, anti over discharging, anti short circuit