I recently bought an Ultra Compact Power Bank to replace my existing power bank and to use on a day trip to Venice.
My main use case is when travelling with just my phone or attending a conference with just my phone.
If I have my laptop with me I can usually use that to charge the phone. My phone can usually hold a charge for most of the day, but I have found now and then something I am doing kills the battery.
On my day trip to Venice I only planned to take my phone and the power bank. I also thought I should be able to charge my Apple Watch as well if that ran out of power.
Now the power bank worked a treat in charging the phone, I was down to 25% battery so plugged the phone into the attached cable on the power bank and it recharged the phone.
Towards the end of the day I noted that my Apple Watch was down to 1%. So I retrieved the USB-C watch charging cable from my bag, plugged it into the USB-C port on the power bank and watched the phone literally not charge.
It wasn’t critical I had my watch (I had my phone) but it was annoying that the charging didn’t work. I hadn’t tested charging the watch before I left, but had for the phone.
When I got home I checked the process, this time using the USB-A charging cable that came with the phone, and this time with the power bank it did charge the phone. So, maybe next time I will take the USB-A cable.
