3200mAh External Battery Charger Case Synthetic Leather Cover For Samsung Galaxy S4 i9500
Features:* Charge/sync during battery charge* LED power indicator lights* Slim slide-in design* Capacity: 3200mAh* Output Voltage:5V* Output Current: 500mAh* Input voltage: 5V* Input current: 500mAh* Charging time: ~5 hours* Color: black,whiteCompatible with: Samsung Galaxy SIV i9500Package Includes:* 1 x Battery Case For Samsung Galaxy SIV i9500Note: 1. Accessory Only! Cellphone not included.      2. Please use up all of the electricity when you got it, and then charge it at least 20 hrs in the forward 3 times to activate the battery. After that, you should charge it about 12 hours every time.