IM6 Rapid Charging

[BigBear]

Today I thought I would try rapid charging on my IM6. Flippin' heck it's fast. See the pics below.
This car is sooo impressive.

 

[rgledhill]

I love the "Max 150kW" sign below the screen ;-) Time to find a 400kW charger and arrive with 5% battery, pre-heated, to see what you can get!

 

[BigBear]

I love the "Max 150kW" sign below the screen ;-) Time to find a 400kW charger and arrive with 5% battery, pre-heated, to see what you can get!

Yeah, I know, were billed on their own website as 150kW, but have been told that they could do up to 300kW , pleasant surprise of under promising and over delivering.

 

[Coulomb]

were billed on their own website as 150kW, but have been told that they could do up to 300kW

Presumably the ~150kW limit is for 400V vehicles, and 300kW for 800V vehicles. It's a lot easier to make a cable that rated at 800V than one rated for over 375A.

Perhaps they were sick of complaints from 400V owners, saying "We never see over 150kW from your supposedly 300kW charger!".

 

[rokfor2000]

I love the "Max 150kW" sign below the screen ;-) Time to find a 400kW charger and arrive with 5% battery, pre-heated, to see what you can get!

How do you pre-heat the battery? Is there any trick to do it or do you just arrive after and hope the BMS did a good job on your journey?

 

[LenEV2016]

How do you pre-heat the battery? Is there any trick to do it or do you just arrive after and hope the BMS did a good job on your journey?

If it is like the mg4 there should be an option for intelligent battery heating, to turn it on. If you are not aware it's not really required for home charging.

Some makes also activate battery preconditioning if you are using sat nav and factoring in a charging stop on your route, as you approach your charge stop it kicks in
unsure if the IMs do this.

 

[DaveIJ]

It’s definitely fast and what a great looking car

 

[rokfor2000]

Got ya. I've tried my 1st charging at Tesla yesterday and it was a bit underwhelming at 80 kW (really cheap though ) with the battery around 30%. With the charger capable of 250kW max, I'd expect it to be at least in the 100s, I was curious if pre-conditioned battery would improve it, but IM6 doesn't seem to have an intelligent battery heating or anything to help here.

Need to give it a go at Ionity's 350 charger at some point and see how it compares.

 

[LenEV2016]

Got ya. I've tried my 1st charging at Tesla yesterday and it was a bit underwhelming at 80 kW (really cheap though ) with the battery around 30%. With the charger capable of 250kW max, I'd expect it to be at least in the 100s, I was curious if pre-conditioned battery would improve it, but IM6 doesn't seem to have an intelligent battery heating or anything to help here.

Need to give it a go at Ionity's 350 charger at some point and see how it compares.

It depends on what state of charge you start from, if you were below 10% it would have ramped right up

 

[Bam Bam]

Got ya. I've tried my 1st charging at Tesla yesterday and it was a bit underwhelming at 80 kW (really cheap though ) with the battery around 30%. With the charger capable of 250kW max, I'd expect it to be at least in the 100s, I was curious if pre-conditioned battery would improve it, but IM6 doesn't seem to have an intelligent battery heating or anything to help here.

Need to give it a go at Ionity's 350 charger at some point and see how it compares.

Tesla are 400V limited, so I think that means you will get half the speed you would otherwise on an 800V charger.

 

[NikLiverpool]

I have read that Tesla superchargers are slower when charging other brands.
Seems to affect mostly 800V cars.
With AI assistance ( so take it with a pinch of salt):

Some newer non-Tesla EVs are built on an 800-volt architecture, while many current Tesla Superchargers operate at a lower voltage. This can significantly reduce the charging speed for these vehicles, sometimes to less than half of their potential speed,

 

[rokfor2000]

hmm, make sense, they're sooo good on price though. £0.23 p/kWh, still almost twice cheaper than the next best ones like Ionity or Be with their subscriptions. I'm heading South on Tuesday so will give it a go at Tesla Glouchester for a bit longer run.

 

[tsedge]

Presumably the ~150kW limit is for 400V vehicles, and 300kW for 800V vehicles. It's a lot easier to make a cable that rated at 800V than one rated for over 375A.

That's exactly it. What they deliver depends on the voltage. The current carrying capacity of the cables is limited by the heat, which depends on the current squared, so higher voltage is why you can get twice the power somebody else can.