Power banks with Power Delivery 3.0 support

Power Delivery 3.0

— the latest (for 2022) version of USB Power Delivery technology.

For more information about Power Delivery in general, see the relevant paragraph. Here we note that this technology describes not only charging but also the general rules for powering USB devices. Specifically, in version 3.0, the creators focused on charging efficiency. So, if previous versions had 4 fixed voltage options, then this standard has the possibility of high-precision step adjustment — from 3.3 V to 20 V in 20 mV steps, and automatically — upon request from the receiving device. This made it possible to speed up the process and, at the same time, avoid significant heating.