The PowerCore Slim has fantastic design, well-thought through.
Unfortunately, I would need 2 cables to be able to use it because it has a microUSB port to charge the itself: One USB-A to USB-C to charge my phone and a microUSB cable to charge the PowerCore Slim. I would hate to walk with 2 cables.
For years, I have been using the infamous Xiaomi powerbanks with 1 single cable (to charge my phone or in reverse to charge the powerbank). Now that all my devices have USB-C (old Google Pixel 1, my laptop etc), I would like to have a new powerbank, but not one that requires me to walk around with different cables.
Please release a new version of the PowerCore Slim without microUSB port, with a USB-C port to charge itself. I would buy 2 instantly.