Battery Case for Galaxy S9, FNSON 4700mAh Portable Protective Charging Case Extended Rechargeable Battery Pack Charger Case Compatible with Samsung Galaxy S9 (Black)

???Customer Must Know : This battery case is just fit for Samsung Galaxy S9 . ---Lightning Sync. When data sync, no need to remove your Mobile phone from the battery case. This charger case has data transmission function with the same speed as Mobile phone's original interface. ---Extend Battery Life. This battery case more than doubles your Mobile phone's battery life without doubling its size. The concern that cell phone is running out of power will not be occurred. How to use: 1. Just fully put your Samsung Galaxy S9 into the battery case. 2. Press 3 second the power button of the battery case, It will start charge your Mobile phone. Press 3 second the power button again, the case will stop charging. Specifications: - Production date: 2019 - Capacity: 4700mAh -Battery Type: Grade A Li-polymer - Output Voltage: 5V -Output Current: 1A - Input Voltage: 5V - Input Current: 1.5A Package Included: 1 x 4700mAh Samsung Galaxy S9 Battery Case 1 x User Manual [Not include charging cable] At last:This product has 12 months quality warranty, Any questions, please don't hesitate to contact us?we will help you solve the problem.