During my testing - I do understand why Parrot does not display voltage.
I have a known weak battery - and it still works great, but I noticed while flying in race mode, the voltage does sag quite a bit - at 60% battery level pushing full speed moving forward and up, voltage was dropping from 7.5v to 7.1v, then when I slow down the voltage recovers to 7.5v. Battery level did not change at all (which is as I would expect).
When I get a chance I will try and log this battery from 100% to landing while flying.
