Delayed charging question/help!
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Joined: Aug 2022
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EQS 580
Delayed charging question/help!
Last night, with the battery at 18%, I plugged the EQS into the charger.
I have a departure time set (7:20am).
In the past, the car has delayed charging until late at night, but timed it so it reaches 80% about 90 minutes before departure.
Last night it delayed charging until nearly the morning, meaning that the car was only charged to 33% at departure time.
What am I doing wrong?
(The charger is a Chargepoint charger.)
I have a departure time set (7:20am).
In the past, the car has delayed charging until late at night, but timed it so it reaches 80% about 90 minutes before departure.
Last night it delayed charging until nearly the morning, meaning that the car was only charged to 33% at departure time.
What am I doing wrong?
(The charger is a Chargepoint charger.)
Super Member
Joined: Jan 2022
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Not sure what your settings are, so hard to answer. I have a charging pause set on the car, not the charger. My car pauses charging from Noon, until 8:30 at night, to avoid peak energy usage times. I plug it in when I am finished driving for the day, on the days I am charging. Then it begins charging at 8:30 PM, and turns itself off when it reaches 80%, usually about 3:30 AM. It is always ready to go in the morning. I just unplug it and go. Since we don't really have Winter here, and my car is garaged anyway, I haven't experimented with predeparture conditioning, etc. Hope this helps.
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The EQS manual says:
"The set departure times are used for the vehicle's
pre-entry climate control and for predictions
regarding the approximate state of charge and
range at the time selected. The charging process
always starts immediately, irrespective of the next
departure time."
Is this what you are referring as "delayed charging"? I'm not aware of any true delayed charging option other than using charging pauses as explained above. A pity really. I feel the car should delay charging when a departure time is set. Trying to reach the same functionality with charging pauses is difficult. One would need to adjust pauses to match the current battery SOC and the planned departure time. The car should be able to do it automatically. This would reduce battery stress as the battery would not be fully charged except just before starting time. Also the battery would be warm after the charging session, no need to warm up the battery at the start of the trip at cool/cold weather.
"The set departure times are used for the vehicle's
pre-entry climate control and for predictions
regarding the approximate state of charge and
range at the time selected. The charging process
always starts immediately, irrespective of the next
departure time."
Is this what you are referring as "delayed charging"? I'm not aware of any true delayed charging option other than using charging pauses as explained above. A pity really. I feel the car should delay charging when a departure time is set. Trying to reach the same functionality with charging pauses is difficult. One would need to adjust pauses to match the current battery SOC and the planned departure time. The car should be able to do it automatically. This would reduce battery stress as the battery would not be fully charged except just before starting time. Also the battery would be warm after the charging session, no need to warm up the battery at the start of the trip at cool/cold weather.
Thread Starter
Junior Member
Joined: Aug 2022
Posts: 60
Likes: 4
EQS 580
The EQS manual says:
"The set departure times are used for the vehicle's
pre-entry climate control and for predictions
regarding the approximate state of charge and
range at the time selected. The charging process
always starts immediately, irrespective of the next
departure time."
Is this what you are referring as "delayed charging"? I'm not aware of any true delayed charging option other than using charging pauses as explained above. A pity really. I feel the car should delay charging when a departure time is set. Trying to reach the same functionality with charging pauses is difficult. One would need to adjust pauses to match the current battery SOC and the planned departure time. The car should be able to do it automatically. This would reduce battery stress as the battery would not be fully charged except just before starting time. Also the battery would be warm after the charging session, no need to warm up the battery at the start of the trip at cool/cold weather.
"The set departure times are used for the vehicle's
pre-entry climate control and for predictions
regarding the approximate state of charge and
range at the time selected. The charging process
always starts immediately, irrespective of the next
departure time."
Is this what you are referring as "delayed charging"? I'm not aware of any true delayed charging option other than using charging pauses as explained above. A pity really. I feel the car should delay charging when a departure time is set. Trying to reach the same functionality with charging pauses is difficult. One would need to adjust pauses to match the current battery SOC and the planned departure time. The car should be able to do it automatically. This would reduce battery stress as the battery would not be fully charged except just before starting time. Also the battery would be warm after the charging session, no need to warm up the battery at the start of the trip at cool/cold weather.
When I came home a few minutes ago, I plugged the car in. It started to charge and then stopped.
I went into the app and deactivated the departure time (set for tomorrow at 7:20am). It immediately started charging.
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EQS 580
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I'm quite confused, do you mean the manual is not correct about setting the departure time and immediate charging (hope so)?
A recap on making the car automatically delay charging to "just before departure" would be useful. Do I interpret correctly that the car starts charging immediately if ECO charging is off even if a departure time was set? Then if ECO mode is on and a departure time is activated, the car charges only shortly after charging cable is plugged (the car probably needs to verify the wall-box power capability, but how long?) and continues timely before departure time, aiming to have the battery full and the interior cooled/warmed up at the time of set departure?
The latter is what I would very much want the car to do. The manual however is very vague on ECO charging (basically just tells it limits DC charging to a lower level, nothing else) and does not explain any charging control when defining departure time (other than that the battery may lose charge even if the car was plugged in).
Then how did the car not charge hardly at all in the scenario of your opening message?
A recap on making the car automatically delay charging to "just before departure" would be useful. Do I interpret correctly that the car starts charging immediately if ECO charging is off even if a departure time was set? Then if ECO mode is on and a departure time is activated, the car charges only shortly after charging cable is plugged (the car probably needs to verify the wall-box power capability, but how long?) and continues timely before departure time, aiming to have the battery full and the interior cooled/warmed up at the time of set departure?
The latter is what I would very much want the car to do. The manual however is very vague on ECO charging (basically just tells it limits DC charging to a lower level, nothing else) and does not explain any charging control when defining departure time (other than that the battery may lose charge even if the car was plugged in).
Then how did the car not charge hardly at all in the scenario of your opening message?
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Joined: Oct 2014
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From: WI
17 E43; 21 GLS580
I'm quite confused, do you mean the manual is not correct about setting the departure time and immediate charging (hope so)?
A recap on making the car automatically delay charging to "just before departure" would be useful. Do I interpret correctly that the car starts charging immediately if ECO charging is off even if a departure time was set? Then if ECO mode is on and a departure time is activated, the car charges only shortly after charging cable is plugged (the car probably needs to verify the wall-box power capability, but how long?) and continues timely before departure time, aiming to have the battery full and the interior cooled/warmed up at the time of set departure?
The latter is what I would very much want the car to do. The manual however is very vague on ECO charging (basically just tells it limits DC charging to a lower level, nothing else) and does not explain any charging control when defining departure time (other than that the battery may lose charge even if the car was plugged in).
Eco charging limits DC charging to 100kw AND 80% for both AC and DC charging.
Then how did the car not charge hardly at all in the scenario of your opening message?
A recap on making the car automatically delay charging to "just before departure" would be useful. Do I interpret correctly that the car starts charging immediately if ECO charging is off even if a departure time was set? Then if ECO mode is on and a departure time is activated, the car charges only shortly after charging cable is plugged (the car probably needs to verify the wall-box power capability, but how long?) and continues timely before departure time, aiming to have the battery full and the interior cooled/warmed up at the time of set departure?
The latter is what I would very much want the car to do. The manual however is very vague on ECO charging (basically just tells it limits DC charging to a lower level, nothing else) and does not explain any charging control when defining departure time (other than that the battery may lose charge even if the car was plugged in).
Eco charging limits DC charging to 100kw AND 80% for both AC and DC charging.
Then how did the car not charge hardly at all in the scenario of your opening message?
I have used the climate pre entry settings and as far as I know that just gets the cabin to the preset temp and thats it.
I have never used the battery charging schedule. I have never seen a battery preconditioning setting proper. I believe that is done by selecting a charging station through the nav, the battery preconditions on the way to the selected charger.
Thread Starter
Junior Member
Joined: Aug 2022
Posts: 60
Likes: 4
EQS 580
The EQS manual says:
"The set departure times are used for the vehicle's
pre-entry climate control and for predictions
regarding the approximate state of charge and
range at the time selected. The charging process
always starts immediately, irrespective of the next
departure time."
Is this what you are referring as "delayed charging"? I'm not aware of any true delayed charging option other than using charging pauses as explained above. A pity really. I feel the car should delay charging when a departure time is set. Trying to reach the same functionality with charging pauses is difficult. One would need to adjust pauses to match the current battery SOC and the planned departure time. The car should be able to do it automatically. This would reduce battery stress as the battery would not be fully charged except just before starting time. Also the battery would be warm after the charging session, no need to warm up the battery at the start of the trip at cool/cold weather.
"The set departure times are used for the vehicle's
pre-entry climate control and for predictions
regarding the approximate state of charge and
range at the time selected. The charging process
always starts immediately, irrespective of the next
departure time."
Is this what you are referring as "delayed charging"? I'm not aware of any true delayed charging option other than using charging pauses as explained above. A pity really. I feel the car should delay charging when a departure time is set. Trying to reach the same functionality with charging pauses is difficult. One would need to adjust pauses to match the current battery SOC and the planned departure time. The car should be able to do it automatically. This would reduce battery stress as the battery would not be fully charged except just before starting time. Also the battery would be warm after the charging session, no need to warm up the battery at the start of the trip at cool/cold weather.
But here's the discovery: sometimes the calculation of when to start charging is wrong. The first few times I used it, it worked perfectly -- starting the charge in the middle of the night and having it ready in time for departure. However, the most recent time, it started charging at about 4am and would not have finished until noon, about five hours after the scheduled departure.
MBWorld Fanatic!
Joined: Dec 2006
Posts: 6,500
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From: Europe
223.168 & 213.012 & 906.633 & 214.005
Exactly. I had set ECO charging and had a departure time set.
But here's the discovery: sometimes the calculation of when to start charging is wrong. The first few times I used it, it worked perfectly -- starting the charge in the middle of the night and having it ready in time for departure. However, the most recent time, it started charging at about 4am and would not have finished until noon, about five hours after the scheduled departure.
But here's the discovery: sometimes the calculation of when to start charging is wrong. The first few times I used it, it worked perfectly -- starting the charge in the middle of the night and having it ready in time for departure. However, the most recent time, it started charging at about 4am and would not have finished until noon, about five hours after the scheduled departure.
MBWorld Fanatic!
Joined: Oct 2014
Posts: 4,524
Likes: 1,181
From: WI
17 E43; 21 GLS580
No clue, given that I that have no use for the feature. One thing to also consider with the issue of "premature termination" 😁 is the charger itself. As owners of the chargepoint wall unit know, the charger can also be programmed. Is there a conflict with the wall charger time setting and the one in the car?
