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P300e charging rate

7.3K views 21 replies 6 participants last post by  ajmorr.is  
#1 ·
Good morning,

I am not sure if I dreamt this, or am losing marbles.. but I seem to recall setting a preferred charge rate, I.e never charging above a certain kWh somewhere in the settings.

When recently connected to 3/4 different 50 kWh chargers, the car was charging much less.

I know the output from the public charger can vary, and you do not get 50 kWh for example as a given, it could easily be half that or less.

But is anyone aware of a in car setting that is slowing the charge rate?

Appreciate any advice!
 
#2 ·
Good morning,

I am not sure if I dreamt this, or am losing marbles.. but I seem to recall setting a preferred charge rate, I.e never charging above a certain kWh somewhere in the settings.

When recently connected to 3/4 different 50 kWh chargers, the car was charging much less.

I know the output from the public charger can vary, and you do not get 50 kWh for example as a given, it could easily be half that or less.

But is anyone aware of a in car setting that is slowing the charge rate?

Appreciate any advice!
Maybe you've got confused with the setting within Navigation to filter on the KWh rate of charging points appear in searches? As far as I know there is no ability to restrict the charge rate once plugged in, it will do the maximum available from the charge point.
 
#3 ·
Ah! Thank you, that's where I saw that screen, although I can't say it has shown me the charging stations when selected to do so.

Good to know the car charges at the max rate it is given.
 
#7 ·
Good morning,

I am not sure if I dreamt this, or am losing marbles.. but I seem to recall setting a preferred charge rate, I.e never charging above a certain kWh somewhere in the settings.

When recently connected to 3/4 different 50 kWh chargers, the car was charging much less.

I know the output from the public charger can vary, and you do not get 50 kWh for example as a given, it could easily be half that or less.

But is anyone aware of a in car setting that is slowing the charge rate?

Appreciate any advice!
I think reading that the vehicles charger is the limiting factor so there is no advantage connecting to a greater than 7kw charger. The only advantage would be with a higher capacity charger is that you should get closer to this (22, 50 kw etc). For example I used a 7kw pod point charger and was competing with a Tesla on the other socket and my charge rate was effectively the same as my granny charger…
A DC connection I would expect to be much faster as you don’t use the onboard charger (AC to DC)
 
#8 ·
I think reading that the vehicles charger is the limiting factor so there is no advantage connecting to a greater than 7kw charger. The only advantage would be with a higher capacity charger is that you should get closer to this (22, 50 kw etc). For example I used a 7kw pod point charger and was competing with a Tesla on the other socket and my charge rate was effectively the same as my granny charger…
A DC connection I would expect to be much faster as you don’t use the onboard charger (AC to DC)
For me, my commute is 25 miles, but if taking the children somewhere and need a supermarket stop that happens to have a fast charger, still makes sense to charge what I can rather than use more expensive fuel. Granted only a few pounds saving but for me that's part of the game!
 
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#10 · (Edited)
On the DC (CCS) socket the maximum you can get is 32kw. So even pluggung in to a 150w charger then 32 is what you get. So our 15kw battery can be fully charged in 40 minutes in theory. In practice I charge to 80% as slows down after that.

I do this all the time though as every EV mile is one less petrol mile.
 
#11 ·
On the DC (CCS) socket the maximum you can get is 22kw. So even pluggung in to a 150w charger then 22 is what you get. So our 15kw battery can be fully charged in 40 minutes in theory. In practice I charge to 80% as slows down after that.

I do this all the time though as every EV mile is one less petrol mile.
Thank you, that explains the charge times I am seeing. I was sure the car would charge at 50 kw and in approx 20 mins, but must have mis read somewhere.
 
#13 ·
Thank you.. next I just need to work out the preconditioning!
 
#14 ·
I tried preconditioning (well in fact I just turned on the climate from the app). It was plugged in and batt was at 100% and I selected ‘use batt’ as it was still attached to mains power.
When I got in 20 mins later the batt was at 88%! I had expected it to keep the battery charged or utilise the mains (via the charging float voltage).
There was a setting in the remote climate to ‘preserve range’ but this would not toggle….
 
#15 ·
I have tried to precondition the car in 2 ways...

I have the Ohme pro home charger, which is timed to charge between 0030 - 0430 to take advantage of Octopus go tariff. This has worked flawlessly and I leave with full or my chosen charge every morning.

I asked Ohme if they supported 'through power', to precondition without using the battery (assuming the car could use the grid not battery to precondition), this was their response:

The Ohme app doesn't currently support preconditioning, however, this is a feature the App Development team are working to provide in a future update to the app.

For the moment most users set a 'Max Charge' using the Ohme app around 30minutes prior to departure to coincide with the scheduled preconditioning.
To set a Max Charge, go to the main 'Dashboard' of the Ohme app and tap 'Change Target' then switch on 'Switch to Max Charging'. This will begin an immediate charge, when you are ready to depart, unlock the car and unplug the charger to end the charge session.


So, on the car Ieft the schedule clear, used the Ohme schedule as before, set the car's departure time to 0755 in the remote app, Mon-fri, with the Timed Climate ticked.

By 0430 the car is charged and ready to either depart, or I assume sit there are precondition.

On the first occasion, in the car settings I chose precondition for Range - when I got in the car was freezing and I had a full 29 miles of range (4 degrees C outside).

Second try, in the car settings I chose precondition for Comfort when I got in the car was freezing and I had a full 30 miles of range (6 degrees C outside).

Is there something, or a stage in the process that I am missing?

I am using MY22 on Pivi Pro 3.0

Any suggestions to keep me and my daughter warm without using battery is most welcome!!!
 
#18 ·
Free at some locations (like some supermarkets or shopping centres). Generally around 25p per KWh at paid chargers, with faster charge rates (pointless in a DS as mentioned above) being more expensive.

My calculations (I'm on Octopus Go at 0.05p per KWh the same as @myfirst) work out an electric mile to cost 2.5p (the DS P300E will do around 2 miles per KWh). At the current 146p per litre petrol prices and with the DS doing 35mpg on a decent run when at 0% charge, makes a petrol mile cost 19p. The public chargers would need to cost 38p per kWh to be equivalent to the cost of petrol.
 
#17 ·
Depends where you go, anywhere from 20p-50p connection, then 29p-42p per Kw at least in the Westcountry.

Overnight I get 5p per Kw

Still cheaper than MPG
 
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