11 kWh charging vs. reality

Juff · 10-09-2024, 05:45 AM

BMW G60 530e specification says that the max AC charging power is 11 kWh, so it is 2 hours 15 minutes to 100%. However, I tried charging in various public chargers and charging stations always show that my car is charging at 7.4 kWh, so charging time goes beyond 3 hours.

Checked car charging settings and "Current limit for AC charging" is set to "Unlimited", meaning it should take up to 11 kWh if station supports (and they all do, up to 22 kWh). So, I wonder why my car isn't charging at 11 kWh, but 7.4 kWh?

Any idea?

MikeElmendorf · 10-09-2024, 06:44 AM

What is the capacity of the chargers? I get 11KW at home with my ChargePoint. Most “slow” public chargers are less than that.

Juff · 10-09-2024, 06:55 AM

Formally speaking, public stations here advertise they can go up to 22 kWh AC, so I wonder if that is actually supported by infrastructure. They capable for 22 kWh, but if they only receive limited input, probably that impacts the output. That is the only reason I can think of...

P.S. Someone in a dealership said 11 kWh is only true EV, and PHEV will be 7.4 kWh, but that is BS.

Gary1fr · 10-09-2024, 09:48 AM

I took delivery of my 530e in July. I understood the maximum charging input was 7kw an hour. This has proven to be accurate. Some 22kw/hr chargers have provided up to 7.4kw. So I assume the car is allowing a touch over the stated amount.
Most of the time though I am using the BMW portable charger at home which supplies only 2kw/hr. If set up for overnight charging it works fine. I only charge to 80%.

Juff · 10-09-2024, 10:15 AM

Well, according to https://www.bmw.co.uk/en/all-models/...pro-saloon.bmw it says 11 kW. I undersand that the charger might not be up to speed and feed less, but when station says 22 kW and car takes only 7.4 (which is 2/3 of 11 kW), I find it weird...

Icarus1_1 · 10-09-2024, 10:51 AM

7 kw would be the max you get on single phase

DomiGijzen · 10-10-2024, 03:16 AM

I thought that 11kw is an update only for the November spec hybrides.

Tortelli · 10-10-2024, 10:26 AM

11kWh is an update for the hybrids which are coming from I think November. All cars before are limited to 7.4kWh charging.
Don’t think its really important, fastcharging is not a thing with hybrids.

10-09-2024, 05:45 AM	#1
Juff Enlisted Member 111 Rep 35 Posts Drives: G60 530e Join Date: May 2024 Location: Poland, Trójmiasto iTrader: (0)	11 kWh charging vs. reality BMW G60 530e specification says that the max AC charging power is 11 kWh, so it is 2 hours 15 minutes to 100%. However, I tried charging in various public chargers and charging stations always show that my car is charging at 7.4 kWh, so charging time goes beyond 3 hours. Checked car charging settings and "Current limit for AC charging" is set to "Unlimited", meaning it should take up to 11 kWh if station supports (and they all do, up to 22 kWh). So, I wonder why my car isn't charging at 11 kWh, but 7.4 kWh? Any idea?
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10-09-2024, 06:44 AM	#2
MikeElmendorf Captain 1566 Rep 836 Posts Drives: 2022 BMW X5/2024 i5 M60 Join Date: Jul 2017 Location: Albany, NY iTrader: (0)	What is the capacity of the chargers? I get 11KW at home with my ChargePoint. Most “slow” public chargers are less than that.
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10-09-2024, 06:55 AM	#3
Juff Enlisted Member 111 Rep 35 Posts Drives: G60 530e Join Date: May 2024 Location: Poland, Trójmiasto iTrader: (0)	Formally speaking, public stations here advertise they can go up to 22 kWh AC, so I wonder if that is actually supported by infrastructure. They capable for 22 kWh, but if they only receive limited input, probably that impacts the output. That is the only reason I can think of... P.S. Someone in a dealership said 11 kWh is only true EV, and PHEV will be 7.4 kWh, but that is BS.
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10-09-2024, 09:48 AM	#4
Gary1fr Rookie 90 Rep 24 Posts Drives: G60 530e Join Date: Jul 2024 Location: SW France iTrader: (0)	I took delivery of my 530e in July. I understood the maximum charging input was 7kw an hour. This has proven to be accurate. Some 22kw/hr chargers have provided up to 7.4kw. So I assume the car is allowing a touch over the stated amount. Most of the time though I am using the BMW portable charger at home which supplies only 2kw/hr. If set up for overnight charging it works fine. I only charge to 80%.
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10-09-2024, 10:15 AM	#5
Juff Enlisted Member 111 Rep 35 Posts Drives: G60 530e Join Date: May 2024 Location: Poland, Trójmiasto iTrader: (0)	Well, according to https://www.bmw.co.uk/en/all-models/...pro-saloon.bmw it says 11 kW. I undersand that the charger might not be up to speed and feed less, but when station says 22 kW and car takes only 7.4 (which is 2/3 of 11 kW), I find it weird... Attached Images
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10-09-2024, 10:51 AM	#6
Icarus1_1 New Member 63 Rep 19 Posts Drives: I5 Join Date: Apr 2024 Location: Europe iTrader: (0)	7 kw would be the max you get on single phase
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10-10-2024, 03:16 AM	#7
DomiGijzen Second Lieutenant 258 Rep 275 Posts Drives: BMW 530e M Sport Pro (G61) Join Date: Apr 2019 Location: Netherlands iTrader: (0)	I thought that 11kw is an update only for the November spec hybrides.
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10-10-2024, 10:26 AM	#8
Tortelli New Member 87 Rep 16 Posts Drives: G61 550e, 991.2 C4S Join Date: Dec 2014 Location: Netherlands iTrader: (0)	11kWh is an update for the hybrids which are coming from I think November. All cars before are limited to 7.4kWh charging. Don’t think its really important, fastcharging is not a thing with hybrids.
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