Title: iPhone 8 Plus Battery Case Slim, Vorcsbine 4000mAh iPhone 7 Plus Protective Battery Charging Case Support Lightning Port and Headphones.
[Upgraded]Newly designed,perfectly resolved the little differences between iPhone 7 Plus and iPhone 8 Plus, embrace the iPhone 7Plus/8 Plus top more to protect your iPhone 7 Plus/8 Plus from slipping off
1. Slide the phone into the battery case. Make sure that the phone is well connected to the USB connecter of the battery case. Then you can start to use the phone.
2. Charging for the phone: just press the power button on the back of the battery case to start charging. And press the power button again to stop charging.
3. When you charge the battery case with the phone attached, the battery case will be charged. If you would like to charge the phone first, you have to turn on the power button on the back of the battery case. When the phone is fully charged, the battery case will be charged next.
4.Default design charge the phone,when the phone is charged full, then begin to charge the battery case
Vorcsbine iPhone 7/8 Plus battery case can perfectly compatible with charge and data transfer.
Capacity: 4000mAh Li-Polymer ATL brand rechargeable battery
Ultra slim and lightweight design.
LED power indicator can let you know the level of the battery. Easy to install.
Provide more power to play more games, video, music,and calls.
iPhone 7 Plus/iPhone 8 Plus Battery Charging Case Ultra Slim Vorcsbine 4000mAh Charger Case for iPhone 7/8 Plus Support Lightning Port Headphones-Black(5.5inch) - B07F3SZ3HV