Are the SS batteries a fire hazard like the lithium ion batteries?
“Are the SS batteries a fire hazard like the lithium ion batteries?”
No there is nothing to burn they are solid like rocks or glass.
Battery fires are liquid electrolyte fires the solid anode and cathodes don’t tend to burn. I mean graphite if you get it hot enough can burn but so can plastic and even aluminum for that matter. Ask the Brits about aluminum hulled ships.