You can use this 1500mAh bankup power to continue use your iPhone 4S when the original battery use out. This backup power also can double as portable and convenient mobile charger. So you do not need to worry about the battery lifetime.
- External backup power for iPhone 4S
- Easy to take and charge conveniently
- 4 LED power indicator to show the level of remaining power
Input: 5V 500mA
Output: 5V 500mA
1 x 1500mAh Backup Power for iPhone 4S