No, i really meant different discharge curve/profile, not different capacity.
When the 24 kWh LBC gives out the low battery warning, the first cell reached ~3.7V and we have 18~20% energy left in the battery. As we know, the dashboard starts flashing like a Christmas tree.
At this stage a 30 kWh still has 40~50%.
So, if the LBC does not adjust (i believe it won't!) the last half of the battery (100km or 60 miles) will be driven with a flashing dashboard filled with wrong information (GOM, battery bars, SOC).
we can only estimate (not know) how much energy is in the battery through leaf spy.