I don’t think the “fast” charging is much different than the usb way, in that if you are charging all 3 batteries at once they are spreading the charge between the 3 batteries. If it fast charged them in the sense that it was 1 at a time then yes...
I have the parts to build about a dozen mini whoops, there are 7 on the wall. DJI's, theres the air2s the 3 og mavics the shoebox of tellos and their remnants lol. the 3 FPV's that still see plenty of air time despite how darn heavy they are...
You can’t have too many, I think I have ~11 now? With all the pending nonsense I’m not getting rid of any until I know there are easily accessible replacements. Until then I have to be conscious of the effects on my business and if I was to need...
That’s how I updated mine. Though it seems it wants to update the firmware every time I turn on my controllerand the drone after it’s been off. I’ve had a similar glitch on my rc2 with my air 3 before so I’m not sure it’s not actually updated it...