10400mAh of capacity. Charges all iPhone four to five times, a Galaxy S3 thrice, or an iPad / iPad 2 once.
Charges one device at maximum speed or two at 3A total. One 5V / 3A (max) port charges Android devices and Apple devices with iOS 5 or higher at full speed; One 5V / 3A (max) port charges ALL Apple products at full speed (also charges Android devices at 0.5A).Note: this product CANNOT charge Samsung or Asus tablets.