Battery Acid and Saltwater combined produces......?
Chlorine gas is it?
How does that affect the air supply inside a sealed Submarine?
Are the batteries old fashioned Lead/Acid Batteries or is there a different technology that eliminates that risk?
Why would the Sub not be able to surface or remain on the surface if there was water ingestion while snorkeling considering it communicated its situation to Higher Command and were told to head home?
Folks....start doing some critical thinking here.
There is something seriously amiss in what is being made public and in turn being discussed here.