The Anker PowerCore Metro Slim 10000 is offered by Amazon for $39 with a direct discount. This is 15 percent off the regular cost.
Metro slim 10000 PD is one of the smallest power delivery power banks yet with sufficient capacity for iPhone XS or Google Pixel to provide more than two charges and almost one full charge for an 11-inch iPad Pro.
USB-C port, poweriq-enabled USB-A port, and Trickle-Charging mode for low-power devices with 18W power delivery. Use double USB ports to simultaneously load two devices.
The power core Metro slim 10000 PD is premium both inside and out with a sleek design and cool-blue LED light-wheel to display battery level.