Inker - PowerCore Metro Essential with a capacity of 20,000 mAh, with a Type-C port with PD technology at 20 watts and a USB port

Anker PowerCore Metro Essential 20000mAh battery - black Product description: Very slim, provides up to 96 hours of power for most smartphones. Provides you with ultra-fast charging for any two devices equipped with a USB port (USB-C and USB).