This battery case is tailor-made for iPhone 7/7Plus and flaunts an 8.7 mm ultrathin design. It offers simultaneous charging to provide ample power for your phone. It keeps the phone well protected and has cut-outs for using all buttons, camera and ports.
 
Specifications:

• Capacity: 5100mAh.
• Input: 5V 2A.
• Output: 5V 2A.
• Recycling time: >500 times.
• Size of battery: 125 x 65.5 x 8.7 mm.
• Weight: 125g.

Features:

• Magnetic absorption technology.
• Hidden USB cable.
• Simultaneous charging.
• LED indicator.
• Protects the phone well.
• With cut-outs for using all buttons, camera and ports.
• Easy to install and remove.
• Provide ample power to charge your phone. 
• Battery performance:Conversion rate: > 94%.
• Temperature lower than 36 degree.
• Phone can be fully changed 2.5 times.
• Phone can be fully changed in 1.5 hours.
• Power bank can be fully changed in 3 hours.