They are now on day 35 or 36 of their journey, and the two cameramen on board have been filming all that time, but their batteries have not run out. Do you think the support vessel replenishes them? They obviously have some sort of satellite phone, otherwise they wouldn't have been able to call for them to take away the grumpy lazy Liverpudlian.
Divebuddy:
Unlike Scott, Shackleton was never in the Royal Navy, which at the time was full of "Club"types like Beatty, who cocked up royally a at Jutland.
As a mere Merchant Mariner he did not have the necessary contacts for proper fame.....