Ideally the battery would be able to be recharged, I was thinking about a li po battery? (But honestly I have no idea)...
How would I be able to find out how much power it uses?
Honestly at this point the size doesn't matter, I just want to have something that is actually functioning!
How would this be wired into the arduino? Obviously normally it is just plugged in to the usb of a computer, but taking it wireless im assuming this is done in a different way?