Hmm as I said with what I read I doubt they could get much longer out of what they have anyway. Which makes me wonder how the hell they will get 25 seconds of use pitting. I know it's slower but the car has to be accelerated from 0 as fasts as possible.
Very interesting to see how this works and who gets stuck in the pits
I would be very surprised if they couldnt increase the capacity if /when required - there is just no benefit in doing it currently ( for F1 cars at least)
What I guess might be a limitiing factor (and maybe this is what you / the article you are refering to meant - completely guessing mind) is that the "effort" it takes to recharge x % now isnt easy to increase
ie the capacity of any given unit is easier to change (ie potential for unit to get smaller for same amount of capacity) but the amount of charge from breaking x amount for one particular corner will always remain the same in actual terms
Sorry probably explained my thought really badly lol