after I build my first battery my paranoia went through the roof.
so I moved my boards from their convenient location in the guest room to a room in the basement inside a metal cabinet.
it is not actually rated to be fire proof, but it is all metal and fully enclosed.
in there I have a wifi connected fire alarm, and two fire extinguisher balls.
i think that if a fire starts in there nothing is going to stop it. I just want to be able to get the kids and wife out of the house…
as an added precaution I charge my boards in a separate location, in a sub garage I have that is all concrete walls. I also have a fire alarm in there and a camera so I can see what is going on.
I actually got two fifty gallon metal drums to put the boards in, but have not implemented that yet.