Interesting, but....they dont explain exactly what the big improvement in track performance was due to.
The pack size & weight is unchanged (20-25 kg) and the max power drain is limited to 120 kW still.
Unless Honda’s old (2015 !) pack design was way under power , i suspect that most teams can build a 25 kg , (5 kWh ?), lipo pack with 120 kW output capacity.
But its noticeable that the regulations do not limit the capacity of the pack, only its weight, and do not limit the discharge energy, only the discharge power !
So, maybe Honda’s new pack has better energy density and can hold more KWhs and hence supply 120 kw for longer ?
Especially as there is no limit on the power delivered from the battery to the turbo ?
Yes, energy density increase seems to be the answer !
But i am surprised it has taken then since 2015 to improve that !