My six sense is telling me?that I should be fine with the 900mA USB3.0. However, I am worried that the internal battery socket may fail if the current charging the internal (lithium) battery has no internal current regulator. Everything inside is Tiny!
I've heard people having such troubles with their NanoVNA by using a USB power charger rated at 2 amps instead of the 1 A max as specified.
Just saying...
73 Alain
