Question about Cygnett ChargeUp Pro

Do you have a suitable c to c cable to recommend?

Works fine for my Dell XPS13 (2018) and my Nintendo Switch with USB-C to USB-C cable, even simultaneous charging of the mobile on the USB-A port is no problem.

I bought this powerbank mainly to charge my ASUS Zenbook Deluxe UX490UA. This laptop needs USB-C with PowerDelivery to charge, without (normal USB voltage) it will not charge. With the ChargeUp Pro, charging works fine (but it needs a suitable USB-C to USB-C cable for full performance). I can also charge my phone in parallel via the USB-A port. The only flaw with my device is that the power button hangs at an angle, as if the housing is a little too small all around. But that doesn't have a big impact in practice. In any case, I would buy this powerbank again.

So it doesn't work on the Macbook Pro 15" (2017)....

I find the powerbank very good. Nice design, simple and good workmanship and what was important to me, the charging of my Lenovo Yoga 720-13IKB works without problems. Of course, it also works for the rest of my iPhone/iPad etc. devices.