Battery relocation- Does anyone know of an actual hydrogen sulfide explosion incident?

I finally got around to relocating my battery to the trunk. Obviously, I followed the instructions which called for a ventilation tube to prevent a buildup of hydrogen sulfide gas, which is generated when the system is charging the battery.

It got me thinking though. Does anyone know of an actual incident when somebody’s trunk exploded from improper ventilation?

I don’t doubt that it could happen but it also seems extraordinarily rare. This could be a symptom of everyone properly ventilating their system but something tells me that’s not the only reason cars aren’t exploding from H2S2.



Also, how long does hydrogen sulfide stick around? It makes me wonder if my old bench seat is an explosive hazard… :D

I had an 1986 Alfa Romeo GTV6 and it was designed with a 50:50 weight distribution with the trans axle in the rear with the disc brakes inboard not at the wheels, the battery was also in the back under the hatchback. So as the battery got older and before it went dead on me, I was wondering what the hell that smell was coming from. Smelled like rotten eggs with a hint of battery acid, very sharp smelling. Then the battery went dead, got a new one and never smelled that again. In other words, the hydrogen sulfide gas won't blow anything up but, will make you wish you had a vent and will tell you your battery is about to puke .