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Discussion Starter · #1 ·
I haven't driven my P8 since Saturday night - Im out of town for a week. I parked it at 57% and it remains at 57% tonight, 2 days later. Its been in the 30 - 60 degree range and will get a little colder this week, dipping into the 20's overnight. It's parked in a carport, so the outside temps are what it'll be exposed to.
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It is hard to tell the actual percentage until you get in it and drive. Mine has looked fine. Got in started moving and 3% went away but … I think this is a 1.7 bug
 

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‘22 XC40 Recharge Twin in Denim Blue
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I haven’t experienced battery loss but I also keep the car plugged in while not in use but set to 80%.
One thing to consider is that even though the charge might not decrease, starting without preconditioning will really affect your usage. More so in the winter months (could be also summer hot days).
 

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I haven’t experienced battery loss but I also keep the car plugged in while not in use but set to 80%.
One thing to consider is that even though the charge might not decrease, starting without preconditioning will really affect your usage. More so in the winter months (could be also summer hot days).
You will not get preconditioning of the battery if your Charge setting is at 80%.
Updates in software version 1.4

  • Preheating of the battery when charging to 90% and 100%, gives improved range. No preheating when charging under 90%.
 

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‘22 XC40 Recharge Twin in Denim Blue
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You will not get preconditioning of the battery if your Charge setting is at 80%.
Updates in software version 1.4

  • Preheating of the battery when charging to 90% and 100%, gives improved range. No preheating when charging under 90%.
It will not precondition the battery but will precondition the cabin without using the battery (assuming it connected to the wall unit).
Just for giggles, take the car out of the garage first time in the morning without warming it up and look at the consumption, you will be shocked.
 

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So if you charge to 90%, does the car have to stay plugged in to precondition the battery? I only plug my car in once a week or so. Now that cold weather is here, I have a noticed my normal short daily trips are using a few more percent of battery.
 

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‘22 XC40 Recharge Twin in Denim Blue
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So if you charge to 90%, does the car have to stay plugged in to precondition the battery? I only plug my car in once a week or so. Now that cold weather is here, I have a noticed my normal short daily trips are using a few more percent of battery.
I’m not charging to 90%, I keep the max at 80%. And yes, I keep it plugged in while it preconditions and warms up.
The cabin heat needed to warm up the car uses a lot from the battery so I leave the wall charger do the job.
Can’t remember where I read it but it was recommended.
I might be wrong and I’m hoping I’m not messing up the battery by doing that.
 

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Discussion Starter · #11 ·
It will not precondition the battery but will precondition the cabin without using the battery (assuming it connected to the wall unit).
Just for giggles, take the car out of the garage first time in the morning without warming it up and look at the consumption, you will be shocked.
I have noticed this - upwards of 140…

so charging to 90 would prevent this then? It would keep the battery pre conditioned? I guess setting the timer in the app is all about cabin comfort, not combined cabin comfort and a preconditioned battery, regardless plugged in or SOC?
 

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So if you charge to 90%, does the car have to stay plugged in to precondition the battery? I only plug my car in once a week or so. Now that cold weather is here, I have a noticed my normal short daily trips are using a few more percent of battery.
I'm not sure if you can precondition battery if not plugged in, I wouldn't be surprised and wonder how much battery power would be reqd?
Up until July Volvo recommended charge to 80% , then update 1.4 came out and now recommends 90% due battery preconditioning.
I find that at 90% plugged in I can tell app to heat car( and battery) 30 mins before I leave and everything is nice and cozy warm plus battery drain initially is almost normal. When I tried to do the same thing at 80%, I found that over 50% of the time the car would start to heat interior and then quit after a couple minutes according to my app and I would find car was only partially heated and initial battery wasn't as good as at 90%, so I'm still on the fence on which way to go.
 

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I have noticed this - upwards of 140…

so charging to 90 would prevent this then? It would keep the battery pre conditioned? I guess setting the timer in the app is all about cabin comfort, not combined cabin comfort and a preconditioned battery, regardless plugged in or SOC?
No, leaving it plugged in with charge limit set to 90% will not do anything after car reaches 90%. You would still have to set timer or tell app to precondition about 30 minutes before you wanted car ready to drive.
I'm retired and don't have a clue when I will use my car next so I just leave it plugged in and set to 90% and then tell app 30 mins prior.
 

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Discussion Starter · #14 ·
No, leaving it plugged in with charge limit set to 90% will not do anything after car reaches 90%. You would still have to set timer or tell app to precondition about 30 minutes before you wanted car ready to drive.
I'm retired and don't have a clue when I will use my car next so I just leave it plugged in and set to 90% and then tell app 30 mins prior.
i was super unclear in my question, my bad.

if i set my charge limit to 70% but still have timers set to precondition before my departure - will this only condition the cabin for comfort?

if i set my charge limit to 90% and have the timers set to precondition before my departure - will this condition both the battery and the cabin?
 

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The 1.7 notes are preconditioning are vague:

  • Smarter pre-conditioning timers: The battery will be pre-conditioned prior to departure in order to increase range.
I personally think if you charge to 70% and set timer for precondition, it only preheats cabin, not the battery. I think to precondition the battery it needs to be 90% and plugged in. I have done this several times and it's very noticeable that the car is much more efficient kwh/ 100 then if the car was cold.
 

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i was super unclear in my question, my bad.

if i set my charge limit to 70% but still have timers set to precondition before my departure - will this only condition the cabin for comfort?

if i set my charge limit to 90% and have the timers set to precondition before my departure - will this condition both the battery and the cabin?
YES

YES

Smarter pre-conditioning timers: The battery will be pre-conditioned prior to departure in order to increase range.

I find the above statement rather vague. (are we still assuming battery plugged in and set to 90% ????)
 

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Discussion Starter · #18 ·
I personally think if you charge to 70% and set timer for precondition, it only preheats cabin, not the battery. I think to precondition the battery it needs to be 90% and plugged in. I have done this several times and it's very noticeable that the car is much more efficient kwh/ 100 then if the car was cold.
got it, thanks
 

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Discussion Starter · #19 ·
anywho, back on track for the thread: ill post another update tomorrow on sitting percentage. its in the low 30's for the rest of the week in the nighttime hours.
 
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