How many times has this been brought up to change rules to allow the battery to be relocated?

I did a search on here and saw a few threads mentioning it, but why is it still illegal?

I don't see a real performance advantage but the battery being out of the engine bay usually makes for a much cleaner bay to work in, more room, etc.

I did see things of safety but IMO it's racing, there is a way to make a rule to be sure it's safe.

How would I push for this rule change?