Max charging 11kw or 9.6kw?

[somal007]

     Featured on BIMMERPOST.com

Can I get 11kw charging at home or is it limited to 9.6kw?

[TJM2]

I installed a Walbox Pulsar plus on a 60A circuit and it charges the i7 at just about 11Kw. I believe the charger that came with the car and BMWs hard wired charger is max @ 9.6Kw.

[somal007]

Is there much of a difference?

[seans]

Originally Posted by somal007

Is there much of a difference?

It's a literal difference of about 1.4kW per hour of power.
This is similar to the energy a Dyson electric heater fan would use or a Nespresso machine if used constantly for 1 hour.

Let's assume an exact 100kWh of total, usable energy storage in the i7's battery (there's a tad bit more, but math is hard).
100kWh/9.6kW = 10.42 hours to recharge the car from 0 - 100%.
100kWh/11.5kW = 8.69 hours to recharge the car from 0 - 100%.
The time difference would be about 2ish hours, to charge the car every night from completely empty to completely full.

Assuming a 20%-80% charge, which would be about 60kWh:
60kWh/9.6kW = 6.25 hours
60/11.5kW = 5.17 hours
The time difference becomes about 1 hour.

Charging at home usually happens at night, and you'll never notice the time difference.
If you need fast power delivery now, then use the free 3-year charging from ElectrifyAmerica and visit a (working) DC charger.

[somal007]

Wow thank you so much for the detailed reply!