Except that he's only talking about the freeze and water test, nothing to do with fire test. If a battery was installed during those tests, the current in the battery would have caused a short circuit within the camera electrical components, even if the camera isn't switched on.
So going on... if under unfortunate event, the 7D dropped into a river or toilet bowl, the way to rescue it was to remove the battery immediately, then try to dry the camera as much as possible, (hair dryer method, rice method, etc). And I would presume that the camera can still work after that (after seeing from what happen in the video).
So going on... if under unfortunate event, the 7D dropped into a river or toilet bowl, the way to rescue it was to remove the battery immediately, then try to dry the camera as much as possible, (hair dryer method, rice method, etc). And I would presume that the camera can still work after that (after seeing from what happen in the video).
So going on... if under unfortunate event, the 7D dropped into a river or toilet bowl, the way to rescue it was to remove the battery immediately, then try to dry the camera as much as possible, (hair dryer method, rice method, etc). And I would presume that the camera can still work after that (after seeing from what happen in the video).