FWIW, the acv charging on an EV depends on a few factors:
- how big the power supply in the car is
- the applied inlet voltage
- the maximum capacity of the EVSE
The EVSE is a fancy, smart, on/off switch. Part of its function is to announce to the vehicle how much current it can provide. The car's part in this is to never try to use more power than the EVSE announces it has. The EVSE also provides ground fault protection, and the car provides a signal that tells the EVSE that it's safe to turn the power on.
Belgium, I think, is one of few places where they provide the i3 with a 3-phase changing capability which could charge the car faster than in most other places. All of the other places I'm aware of utilize a single phase input, whether that's 120 or 240 vac. Well, I heard rumblings about Australia and maybe NZ as well.
In the states, the fastest charge accepted (acv) in the i3 is 7400W, or about 30A at our nominal 240vac generally available. power = volts * amps. Lower the voltage, with the same amps, and less power is available. The maximum amps is the overriding factor as that's the factor announced by the EVSE and what the circuits in the i3 can handle.
At 94Kw in four hours, that's a bit less than 24Kw/hour (note, there is some loss in converting acv to dcv) so, at 24Kw/220v = 109A...the i3 certainly cannot accept anywhere near 109A, nor, are most homes wired up to provide that. Other people have indicated that those that can use a 3-phase input can charge at higher rate (in the range of 10,000 versus 7400), but nowhere near 24,000 unless you're talking about a DC input which you almost certainly won't have in your home unless you want to spend $20K or so and upgrade your power in to industrial standards.
2011 535i x-drive GT, 2014 i3 BEV
Soon (hopefully!) A 2021 X5 45e will replace the above