ThePyroPath on 14 March 2017
OK, here's one. I have a Xtorm AL450 powerbank. What I noticed is that the list linked in the OP states many many readings of about 5 volts, 500mA. And I can confirm the slow declining of battery percentage while playing Zelda with the powerbank attached. However, when I disconnect the cable while it's charging and then reconnect within a few moments it actually starts charging the Switch. Progress is extremely slow, like 1% each 20 or 30 minutes, but it shows this should be providing more power than it's using or in other words, it can't be 5 volts, 500mA...
