Hope they carry extra batteries!
#2 Cannot replace the batteries on an iPhone. Do they have a Apple Genius as a squad member ready to take apart the phone and add a battery?
A modern smart phone is thousands of times more powerful than the computers the Apollo mission used to navigate to the moon. They are about as powerful as a Cray 2 supercomputer, from the mid ‘80s — and minuscule by comparison, with a relatively negligible power consumption. There’s more to be in awe of, than there is to criticize.