If you're driving this theoretical 600 mile vehicle you can't charge it overnight on AC anyways. A level 2 charger is typically 10kW or 40amps. A 600 mile battery is likely at least 200kWh, a 20 hour charge at 10kW.

I.e. plan to charge with 50% or more remaining, and have a low probability option to skip a charge and drive to the next destination. Then, your plan has to adapt as you may have to stay there longer than intended to wait for this much larger charge deficit to be recovered.

If this large capacity battery didn't have charge speed limitations, perhaps the mitigation could be to take a detour to a fast charging station and then return to your planned route.