The video on fire is certainly though provoking, and we all have some of the devices which have the more "dangerous" type of Li ion battery in our phones, camera batteries etc. Also good advice to consult with more knowledgeable people on design and protection of the Li battery systems. The one item mentioned which was mentioned, I don't see emphasized enough, is battery temperature, especially if in an enclosed space. Unfortunately in our C Dorys there are not a lot of alternative escape routes.
We had Personal locator beacons for each of our watch standers: The PLB, a strobe and a handheld VHF radio were all fixed to the inflatable life jacket and safety harness. We also had a separate PLB in each of two ditch bags. One was by the helm, and the second ditch bag was placed with the inflatable. The person on watch was susposed to keep the ditch bag close at hand at all times. We also kept the hard dinghy filled with fenders, and `10 gallons of water and there were two other five gallon water containers by our inflatable dinghy just in front of the Main Mast. There was a second EPRIB packed. with the inflatable. Our EPIRB was located by the companionway-- and I would still place it there.
While at sea we had a daily contact via ham radio with my father, who lived in Liesure World and had access to a great setup with good beam antenna and a 2 KW amplifier if necessary. (We had a 600 watt 12 volt amplifier. And we checked in with one or more of the maritime mobile nets daily.) We didn't have a formal "float plan", although that is probably a good idea. We also had a HF marine radio, and checked in with Coast Guard Miami or similar radio stations on HF if there was a security issue. (Like a CG cutter comming up dark in international waters.)
For firefighting, we had a fixed system in the engine room, and a number of portable extinguishers around the boat. Also there were plans for each kind of emergencies which each new crew number was required to read and memorize.
