Timing a Charge

Faults and Technical chat for the Volkswagen ID.3
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Raxacorico
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Location: Scotland

Post by Raxacorico »

Mixmaxmox wrote: Wed Mar 24, 2021 2:41 pm I use an Ohme wall charger & it works great with Octopus Go.

I have no 'timed' or location settings in the car, everything is scheduled using the charger. It's really easy to set up & just delivers upto 4 hours of charge. I have it set stop at 80% or 04:30 when my cheap rate ends.

I've never tried to use the departure pre-conditioning, & the Ohme can't access my ID3s battery status, so some of the features in the Ohme app. aren't available, but for me its fine.
That's surprising - I would have thought that was a given. The demo video seemed to show the vehicle battery SOC (state of charge). Presumably you mean SOC when you say 'battery status'?
Life Pro Performance, Makena Turquoise - Loen Alloys - June 2021- Zappi Charger - Software v3.2 [dealership]

Mixmaxmox
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Post by Mixmaxmox »

Raxacorico wrote: Wed Mar 24, 2021 5:34 pm
Mixmaxmox wrote: Wed Mar 24, 2021 2:41 pm I use an Ohme wall charger & it works great with Octopus Go.

I have no 'timed' or location settings in the car, everything is scheduled using the charger. It's really easy to set up & just delivers upto 4 hours of charge. I have it set stop at 80% or 04:30 when my cheap rate ends.

I've never tried to use the departure pre-conditioning, & the Ohme can't access my ID3s battery status, so some of the features in the Ohme app. aren't available, but for me its fine.
That's surprising - I would have thought that was a given. The demo video seemed to show the vehicle battery SOC (state of charge). Presumably you mean SOC when you say 'battery status'?
Yes, I understand the Ohme app, can't use the API data of the VW app. & so is clueless to the SOC.
I generally just charge up to 80% when my charge level drops below 50%, which can be achieved during the Octopus Go cheap rate period. It's simple & works for me, but definitely isn't as 'smart' as it should be.
Narked@50
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Joined: Thu Feb 25, 2021 3:39 pm

Post by Narked@50 »

If the Ohme charger cant access the ID3 Battery SOC, how can it charge up to 80% ?
sclrkuk
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Joined: Thu Jan 07, 2021 6:00 pm

Post by sclrkuk »

Narked@50 wrote: Wed Mar 24, 2021 10:48 pm If the Ohme charger cant access the ID3 Battery SOC, how can it charge up to 80% ?
Set 80pc as the upper charge limit in the vehicle settings in the infotainment system.
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Id3 frustration
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Post by Id3 frustration »

Apart from charge timing issues I also have problems that often the charging rate is painfully slow 3 or 4 miles per hour added and recently I had an issue that I couldn't start charging at all then suddenly after about 36 hours the car began charging quickly. I makes a daunting prospect going for a long distance journey. Having said that I have not had the opportunity to try a highspeed DC charging point, so I don't know if I would have problems with the car charging slowly on a DC charge. If anyone else has had slow charging problems at home and then tried a high speed charge it would be good to know what their experience was like.
Id3 frustration
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Post by Id3 frustration »

Regarding timed charging problems, I understand that they do not have off peak cheap electricity tariffs in Germany, perhaps if they did Volkswagen would be more inclined to pull their finger out and do something about this issue.
DadGrifty
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Post by DadGrifty »

Thanks scott28tt - I set the timed charge up as: 'vehicle' - 'location' - 'home' - charge between 00.30 and 04.30 (Octopus cheap rate); instant charge from 10%; charge up to 80%; didn't set a departure time; didn't tick either 'automatically unlock connection' or 'reduce a/c'. So the timing all works well, get the green flashing light when I plug in late afternoon, then charges during the set times but only at the miserly rate of 8mph.
Id3 frustration
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Post by Id3 frustration »

I have had the same problem of very low charging rates, as low as 3 mph. So in four hours duration of cheap rate only 12 miles added. Never had any problems with my old e-golf, is that what they call progress.
Ph66
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Post by Ph66 »

I have just gone out to set the car up for a delayed charge after midnight, and well it's lost the saved location . Tried to set it up again but it still won't display as set up !

The funny thing is I've plugged the cable in and it's flashing green on the charging flap to say it's waiting for the time ....

What's going on !
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simonrg
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Post by simonrg »

Ph66 wrote: Mon Mar 29, 2021 3:21 pm The funny thing is I've plugged the cable in and it's flashing green on the charging flap to say it's waiting for the time ....
Mine fades in and out when it is charging, I guessing your flashing is a lot quicker and the car isn't just charging..

I have an automated switch which turns my charger on and off, based on time and need for the ID.3 to charge.

So I haven't played with the timed charging settings on the ID.3.
ID.3 Business Pro Performance + Heat Pump - 0564 (23/12/20) - 0783 (28/1/21) - 0792 (7/5/21) - 0910 (24/10/21) - 3.2 (6/7/23) - Hardware H20 - North Yorkshire
CarterHounslow
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Post by CarterHounslow »

I don't have to worry about off peak as I worked out it was pretty pointless going to one of those tariffs, or it would save very little. However it seems I'm having the same problem with timed charge, even during the day.

I needed to charge the car today, so I thought I would test out the timed charge to have 80% by 7.15 this evening. Charging at a normal speed I get at home, this should take around 2 hours and 20 minutes from the level of charge that I had. It kicked on the charger half an hour early, charging at only 7-8mph (not the 29 I normally get). Sat here an hour later, still the same.

I'm really not impressed by this as I don't want to sit with 100% battery all night, and sometimes I need to drive to London and back in the same day, and I was hoping to time a charge to 100% and precondition the car, seems like it's buggy.

UPDATE:

It was still charging after 19:15, so there was an issue. I've done it again, telling it to go for 21:30 and put it in the second slot. My car is now charging at 25 mph.

Interesting.
CarterHounslow
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Post by CarterHounslow »

Tested it again twice. 9 mph last night and then 24mph this morning.

So in short I've tried 4 timed charges in 24 hours.

1) only charged at 8mph
2) charged at 24mph but was done straight after the first one.
3) only charged at 8mph
4) charged St 24mph

Can't find any reason why it's doing this.
Deleted User 192

Post by Deleted User 192 »

In case you missed it: viewtopic.php?f=8&t=647
CarterHounslow
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Post by CarterHounslow »

scott28tt wrote: Thu Apr 08, 2021 8:41 am In case you missed it: viewtopic.php?f=8&t=647
Yes I've just seen this, thanks. Good job I have a pod point charger then!

Although if I don't want the car sat on the driveway just sat at 100% for hours and trashing the battery (as occasionally I will need to put it on at night and take it to 100%) you need to work out yourself how many minutes you need to charge the car for.

I have edited this post as I asked if anyone had worked out how long it takes per percent as MPH is not very useful when timing a charge, however I just did the maths.

7.4kw charger, in theory should be 4 minutes and 43 seconds per 1 percent of battery (or 283 seconds if you prefer it written like that)

Therefore if I wanted to add only 40% of battery overnight, that's 40 x 283 Seconds = 11,320 seconds. That's 188 minutes and 40 Seconds. Or 3 hours, 8 minutes and 40 seconds.

Therefore 10% is 47 minutes and 10 seconds roughly.

If you're only charging to 80% or whatever, that's fine.

I think this feature will benefit most the off peak chargers if I'm honest. It's not ideal for what I want to do as I want to be able to precondition the battery etc. Maybe if I time the air conditioning only it might work?
Deleted User 192

Post by Deleted User 192 »

I'm MUCH more bothered about off-peak charging or charging to a set level by a set time and knowing that it is actually going to work than I am about pre-heating the cabin and battery - so charger-based timing will be my weapon of choice.

For others who have the opposite priority, let's hope that VW can get the on-car timing working reliably for all.
CarterHounslow
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Post by CarterHounslow »

I spoke to my dealer about this today "first I've heard of this." I said that multiple people have had the same issue on this forum so I'm amazed this is the first anyone at that dealership has heard about it. He said " I know it slows down towards 100% but yours seems to be premature."

Is he talking out of his arse? Does it reduce ac current even on a 7.4kw charger when it approaches 100%? I've never charged it to 100%
Deleted User 314

Post by Deleted User 314 »

Overnight I timed for a departure of 7am, I pay 3c per Kwh from 01:00 - 07:00, Maximum charge was set to 80%.

The charging started in the middle of the night, but the car only managed to get to 70%.

I'll give it a few more days to "learn" and see what happens.

Using an Elli charger at a max rate of 11Kwh.
Deleted User 192

Post by Deleted User 192 »

CarterHounslow wrote: Wed Apr 14, 2021 7:43 am Does it reduce ac current even on a 7.4kw charger when it approaches 100%? I've never charged it to 100%

I don't think so, I've only gone to 100% once at home but from the data I can see the delivery seems to have been at the same rate throughout.
Deleted User 314

Post by Deleted User 314 »

Here's some tracking of our consumption data yesterday when I tested the timing charge for a 7am departure.

Pretty much got up there, although not to 11Kwh which it can deliver. Looks like it's charging at around 7 or 8, which is still fine IMO.

Screenshot 2021-04-15 110633.png

Deleted User 192

Post by Deleted User 192 »

What % did you want the car to get to by 7am and what did it actually get to?
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