Hub D1 DC Power Hub Minor voltage adjustments

From what I’ve seen, the output voltage of the 12v mode is actually 13.5v

Any chance a software update might allow us to fine-tune that voltage? I have some 12v electronics that 13.5v is just a bit too much, and would like to lower it to around 12.5v instead.

Or for that matter, the 12v 30amp output of the ac500 itself is in the same boat too?