Strangely although this may be a spoof it isn't as straightforward as you'd think. Hands up all those that think UK voltage is 240v??
Wrong..... It's officially 230v with a tolerance of -6%/+10% or anything between 216 and 253v. (And 3 phase is a worse equation)
As any charging station will convert as a function of input AND the quality / tolerance of the hardware then the charging performance could also vary. So CTEK/Bosch would be a good arguement to apply?