There are some power banks that will not work with the EtherScope nXG. The PowerArc ArcPack PA1801 is a recommended power brick because:
- It is 54Wh capable for 100% charging the 46Wh EtherScope (some efficiency lost) so well matched in terms of capacity.
- This is also a USB-C brick which matches well the the EtherScope power adapter.
- It is also well made (aluminum case) and uses premium Samsung cells.
- The real bonus is it comes with a high quality USB-C to USB-C cable that works well with ES.
While there are likely other ones that will work, the above has been tested to work with the EtherScope nXG.