First sorry my bad english and you know I haven't too big electrical knowlege...
I make a project with Arduino Pro Mini, 9g servo and some small parts (LED and receiver).
It Works fine from wired power (eg. USB).
I have a small project box space for two pcs AA battery and a 0.5A 5V boost step-up converter like this:
I experience 'reset effect', when start up the arduino and get the first position the servo the whole system restart - I think there is no enought power. I tried to separate feeding the servo - it looks like there is enought the two AA battery power for just the servo power.
Have you some experience how to power up this project from 2 AA battery - eg. use capacitor or bigger step-up converter or other good idea?
Important aspect the energy efficiency - use step-up converter to bypass the board regulator and there is sleep event too for the longer battery life.