Google Pixel 2 Battery Case 4700mAh, Newdery Portable Extended Charger Battery Case, Built-in TPU and PC Charging Power case for Google Pixel 2 – Supporting SYNC-DATA and Type-C Port (Black 5″)
>EXTENDED 100% BATTERY LIFEFULL PROTECTIONSMART LED INDICATORS< – With 4 LED battery level indicators, you can know exactly the power condition of the battery case through the LED color(0–25%–50%–75%–100%), The LED light will flash when case is charging, but don't flash when the case charging pixel 2, The LED indicator will stop flashing when the battery is full of power.