OK, so the newest RaspberryPi3 needs 2.5A from a USB port, and is rated up to 5.25V.
I can easily get some 12V supplies, then run them to an RC UBEC 5.1V by Turnigy, they'll do 3A easily.
However, I've been using my Pi on a 2.3A supply for a few days now, with no lockups.
I do however, get the little lightning bolt at the top of the screen warning me my supply is drooping below 4.5V
This, however, is NOT constant, it only happens while in the Kodi menu, when playing video, it never droops the voltage.
So I just had an idea......
You can power a RaspberryPi via it's "Pins" (people call them GPIO, but they're the 6 that aren't).
If I was to whack a super-capacitor on pins 2 and 6, the power and ground pins, this might eliminate the momentary sag.
Experimenting is what these little PC's are all about, so I'm going to try it.
But any thoughts?
I can get a 1F 5.5VDC Super Capacitor for $6.
I might try this trick with a NORMAL capacitor first and see if that's enough.