We have a Polestar 2 and an X22 charging point. The car has a pre-condition mode to warm the interior and batteries on cold days before traveling, I assume this is not unique to Polestars???
The advice is to run pre-conditioning before unplugging the car from the charger, so that the power is not drawn from the car battery. This seems to work, I’ve not seen any car battery depletion doing this - but it confuses me.
If the Evnex app has been set to charge from 11pm, and charging completes within hours, well before the set 7am end time, then the X22 would be off after 7am and pre-conditioning would have to draw battery power - or is the car still able to draw limited power from the X22 at this point without a new session being recorded in the app?
This has been puzzling me for a while so an explanation would be much appreciated.
The charger won’t let the car draw power outside of the scheduled times, but it will continue to offer power right to the end of the scheduled time even if the car doesn’t want it because it has completed charging (i.e. it doesn’t stop offering it just because the car has “had enough” a few hours into the session).
So a few possibilities about what might be happening here:
The car is actually preconditioning before 7am because it doesn’t know how long it will take and is starting early.
Your charging schedule is mistakenly set to end after 7am.
Preconditioning is all happening from the battery but is not using enough energy for it to be obvious from the state of charge.
If you look at the “Session History” tab in the Evnex app, you can tap on the “Power” tab and see a graph of when the car was drawing power.
If there’s a little spike just before 7am then it’ll be the early preconditioning.
If there’s a little spike after 7am then it means the schedule doesn’t actually finish at 7 so you’ll need to fix it via the “Charging Settings” menu.
If there’s no spike it means preconditioning has been using the battery.
If the end time was set to a later time, would the car warm up just before the new set time? The battery has completed charging so it would not charge outside the cheap electricity period but the precoditioning would perhaps be outside of a cheaper electricity period. However, it will not deplete the battery.
That would probably do what you want. The only caveat is that if your battery were really empty when you plugged it in then it’s possible that the main charge would still not be finished by 7am and would continue into the more expensive period. Chances are that’s very rare though, as very few batteries are large enough to not be filled within a 10 hour charge window.