EQE AMG SUV charging curve
Thread Starter
Junior Member
Joined: Oct 2024
Posts: 39
Likes: 7
eqe suv amg
EQE AMG SUV charging curve
In my last few charging sessions it seems my charging curve is off. Also, I notice my car isn’t preconditioning.
when I’m around 50% state of charge I’m only getting 104KW. What has everyone else been getting?
when I’m around 50% state of charge I’m only getting 104KW. What has everyone else been getting?
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
What kind of chargers are you using? If you're on 150kW chargers, they can only supply 350A of current, so the charge rate will definitely be lower at 50%. MB EQs are current-dominated when it comes to the charging curve. Second, has it become colder? Have you preconditioned for long? That can also have a significant effect on charging performance.
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
I'll also add that preconditioning seems to depend on quite a number of factors. If the battery pack is close to operating temperature, it won't precondition, especially as a few moments on the charger will bring the battery up to temp quickly. If there's a bigger delta, it'll definitely precondition, as expending the energy is worthwhile.
Thread Starter
Junior Member
Joined: Oct 2024
Posts: 39
Likes: 7
eqe suv amg
What kind of chargers are you using? If you're on 150kW chargers, they can only supply 350A of current, so the charge rate will definitely be lower at 50%. MB EQs are current-dominated when it comes to the charging curve. Second, has it become colder? Have you preconditioned for long? That can also have a significant effect on charging performance.
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
Hmm. Okay, yeah, it should be going faster. Wonder if one of the cabinets was de-rated? 60° isn't too cold but can start to reduce charging performance. I would expect to see 135-145kW at 50% depending on conditions. Engineering Explained has an excellent primer on how charging temperature affects NCM battery chemistries, I highly recommend the view. It might explain why at even mildly cool temperatures, the battery is less receptive to a high charge curve.
Thread Starter
Junior Member
Joined: Oct 2024
Posts: 39
Likes: 7
eqe suv amg
Hmm. Okay, yeah, it should be going faster. Wonder if one of the cabinets was de-rated? 60° isn't too cold but can start to reduce charging performance. I would expect to see 135-145kW at 50% depending on conditions. Engineering Explained has an excellent primer on how charging temperature affects NCM battery chemistries, I highly recommend the view. It might explain why at even mildly cool temperatures, the battery is less receptive to a high charge curve. https://www.youtube.com/watch?v=qYJk1Qljwgg
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
Thread Starter
Junior Member
Joined: Oct 2024
Posts: 39
Likes: 7
eqe suv amg
Thread Starter
Junior Member
Joined: Oct 2024
Posts: 39
Likes: 7
eqe suv amg
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
Thread Starter
Junior Member
Joined: Oct 2024
Posts: 39
Likes: 7
eqe suv amg
Senior Member
Joined: Mar 2024
Posts: 349
Likes: 138
From: California
2024 EQE Sedan
Preconditioning occurs prior to charging, and is warming up or cooling down the battery to the optimal temperature before you charge. It will happen if needed when you navigate to a charging station with the built in navigation system. You will see a message that preconditioning is occurring if it was needed. Once you are charging, the car will maintain the correct temperature as needed. If you do not precondition, the initial charge rate will be limited until the battery is the correct temperature.
If it is not the battery temperature, it is possible, and even likely the rate is being reduced by the charging station. If the cooling system in the charger and cable is comprimised, the charger will limit the charging rate to preserve the charger. Feel the charging cable, if it is warm or hot, that is the issue. I have seen a lot of chargers with this issue.
Last edited by ehildum; Dec 3, 2024 at 08:04 PM.
Member
Joined: Jan 2023
Posts: 187
Likes: 48
EQE 350 4matic
That would likely be due to charging in Eco mode, which limits the charge rate to that level to extend battery life.
Preconditioning occurs prior to charging, and is warming up or cooling down the battery to the optimal temperature before you charge. It will happen if needed when you navigate to a charging station with the built in navigation system. You will see a message that preconditioning is occurring if it was needed. Once you are charging, the car will maintain the correct temperature as needed. If you do not precondition, the initial charge rate will be limited until the battery is the correct temperature.
If it is not the battery temperature, it is possible, and even likely the rate is being reduced by the charging station. If the cooling system in the charger and cable is comprimised, the charger will limit the charging rate to preserve the charger. Feel the charging cable, if it is warm or hot, that is the issue. I have seen a lot of chargers with this issue.
Preconditioning occurs prior to charging, and is warming up or cooling down the battery to the optimal temperature before you charge. It will happen if needed when you navigate to a charging station with the built in navigation system. You will see a message that preconditioning is occurring if it was needed. Once you are charging, the car will maintain the correct temperature as needed. If you do not precondition, the initial charge rate will be limited until the battery is the correct temperature.
If it is not the battery temperature, it is possible, and even likely the rate is being reduced by the charging station. If the cooling system in the charger and cable is comprimised, the charger will limit the charging rate to preserve the charger. Feel the charging cable, if it is warm or hot, that is the issue. I have seen a lot of chargers with this issue.
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
Yeah, that brake hold actuation. It's so unpredictable! I will say that on the brake-pedal-refreshed EQEs, it's much more consistent. The "brake feel" is fine for me either way, but the brake hold is definitely something I'd notice. It was already relatively unpredictable on my W213 E-class. Was super solid on my W212 and all other MB cars. I have no idea how it has managed to get progressively more difficult to do. But at least it's mostly fixed on the newer braking system.
OP mentioned that he didn't have Eco mode activated for charging, if I remember correctly.
OP mentioned that he didn't have Eco mode activated for charging, if I remember correctly.
Super Member
Joined: Dec 2022
Posts: 750
Likes: 225
From: Sweden
2023 EQE SUV 500 4Matic
Yeah, that brake hold actuation. It's so unpredictable! I will say that on the brake-pedal-refreshed EQEs, it's much more consistent. The "brake feel" is fine for me either way, but the brake hold is definitely something I'd notice. It was already relatively unpredictable on my W213 E-class. Was super solid on my W212 and all other MB cars. I have no idea how it has managed to get progressively more difficult to do. But at least it's mostly fixed on the newer braking system.
OP mentioned that he didn't have Eco mode activated for charging, if I remember correctly.
OP mentioned that he didn't have Eco mode activated for charging, if I remember correctly.
MBWorld Fanatic!
Joined: Nov 2013
Posts: 1,030
Likes: 492
From: Louisville, KY
2023 EQE350 4MATIC, 2023 EQE 350 4MATIC SUV, 2015 E250 BlueTEC 4MATIC, 1995 E300 Diesel
Hold on a minute…Maybe we’re talking about TWO different “Eco Modes”! Above, I was referring to the Eco mode slider on the charging screen, which, if on, will limit charging to 100 Kw. And I presume any pre-conditioning. Here, it seems we may be talking about Eco drive mode. Are you saying this would prevent preconditioning? This had not occurred to me before. It certainly makes sense!
Member
Joined: Jan 2023
Posts: 187
Likes: 48
EQE 350 4matic
In my experience, MB limits preconditioning performance when on ECO drive mode. Even with Eco Charging turned off, I haven't been able to pull live data other than the graph I see in the consumption tab.
