In reply to ScottTalbot:
I think you might be paying extra for the full USB C PD voltages with this one. It'll do 5V, 9V, 12V, 15V, or 20V out of the USB C port so will comfortably charge laptops via USB C.
If you only need a power bank to recharge phones you can get one way cheaper that just supports 5V (or 9V fast charge) out of the USB ports.