Converted to Lithium-Ion be careful.

Print one subjective article about lithium batteries and people run amok. My brother has lived in Ventura since the early 70's and know's many divers and fishermen that have been on the Conception over the years, none of them who knew that boat wouldn't sleep below deck, they called the berths below "coffin bunks", no way to get out in case of a fire.

Since they just got the remains of the boat on dry land maybe they might be able to find the cause or not,anything else is pure speculation!