SOC when letting car sit for a while

[SwissTaycan]

Hey everyone,

Think this was answered before but what is the consensus of SOC you should leave the car if you don’t plan to use it for 2-3 weeks? Might actually be travelling so first time it has become relevant.

Obviously not 100%. Probably also not 80%. So the best answer is?????

@daveo4EV this is probably up your alley

Thanks!

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[submatrix]

Hey everyone,

Think this was answered before but what is the consensus of SOC you should leave the car if you don’t plan to use it for 2-3 weeks? Might actually be travelling so first time it has become relevant.

Obviously not 100%. Probably also not 80%. So the best answer is?????

@daveo4EV this is probably up your alley

Thanks!

80% is no problem, and in fact is probably what I would do. What you don't want is to leave it at 100% or a low SoC, as that is not good for the battery. Given the low drain rates of the Taycan, you should see minimal drain after 2-3 weeks.

 

[chrisk]

There is a TSB by Porsche for long term parking. If I remember correctly it says use a general profile set to 85%, no timers, plugged into a charger and over-inflate the tires to 51 - 58 psi to make sure they don't get permanently bent because the car is heavy.
https://www.taycanforum.com/forum/t...rsche-on-long-term-storage-with-a-bonus.2973/

The "connected to charger" part is questionable. I am not going to do that.
Also the recommended tire pressure exceeds the max pressure on the tire label so I am not going more than the max.

 

[Scandinavian]

There is a TSB by Porsche for long term parking. If I remember correctly it says use a general profile set to 85%, no timers, plugged into a charger and over-inflate the tires to 51 - 58 psi to make sure they don't get permanently bend because the car is heavy.
https://www.taycanforum.com/forum/t...rsche-on-long-term-storage-with-a-bonus.2973/

The "connected to charger" part is questionable. I am not going to do that.
Also the recommended tire pressure exceeds the max pressure on the tire label so I am not going to do 58psi either.

This depends on how long you will leave the car in place. The recommended charge level for up to 3 months is 50%, which I think is the same for most EV’s. Not Taycan specific. And the overinflating of tyres is, as you say, to avoid the tyre getting out of shape. (flat “”spot””).

Since the car has Very low battery drain when stored, I would avoid having it plugged in for other reasons.

 

[XLR82XS]

The "connected to charger" part is questionable. I am not going to do that.
Also the recommended tire pressure exceeds the max pressure on the tire label so I am not going to do 58psi either.

Probably best to leave it plugged so the 12V battery can trickle charge. As long as the SOC is not over Porsche recommended state, or very low, you're ok.

 

[chrisk]

Probably best to leave it plugged so the 12V battery can trickle charge. As long as the SOC is not over Porsche recommended state, or very low, you're ok.

Are you sure it is charging the 12v battery while connected to the main charger? I would say probably not given the forum wisdom around the 12v drainage during charging.

Being connected to the charger might actually increase the chance of 12v drainage because certain computer modules have to wake up from time to time to enable charging.

 

[Arno]

There is a TSB by Porsche for long term parking. If I remember correctly it says use a general profile set to 85%, no timers, plugged into a charger and over-inflate the tires to 51 - 58 psi to make sure they don't get permanently bend because the car is heavy.

I have ruined to sets of tires on two separate occasions, since I did not over-inflate before storing. The first was a MB veteran I only used summer time, and just sat there in the same position for 10 months at the time. The other was one a newer MB-S AMG, I didn't use for a year when I was hospitalised and not able to drive. In both cases the tires became flat on one spot and therefore unusable, like driving on a bumpy road. I learned my lesson the hard way, so I can definitely confirm it is a risk, especially on heavy electric vehicles as you mention.

 

[XLR82XS]

Being connected to the charger might actually increase the chance of 12v drainage because certain computer modules have to wake up from time to time to enable charging.

Not once it hits the programmed target SOC.

 

[kort]

Hey everyone,

Think this was answered before but what is the consensus of SOC you should leave the car if you don’t plan to use it for 2-3 weeks? Might actually be travelling so first time it has become relevant.

Obviously not 100%. Probably also not 80%. So the best answer is?????

@daveo4EV this is probably up your alley

Thanks!

anywhere between 30% and 80%

 

[Kingske]

Hey everyone,

Think this was answered before but what is the consensus of SOC you should leave the car if you don’t plan to use it for 2-3 weeks? Might actually be travelling so first time it has become relevant.

Obviously not 100%. Probably also not 80%. So the best answer is?????

@daveo4EV this is probably up your alley

Thanks!

I typically store at SoC between 40% and 60%. You typically only lose 1% SoC per month. My tires are always at 38-40 psi anyway, so that helps avoiding flat spots.

 

[daveo4EV]

others have answered this sufficiently - just don't store it "full" - 80% or less is ideal from what I understand - Porsche Good to Know app has a section for long term storage I believe.

 

[kreshi]

55-65% I would say. It’s in that space where the battery feels most comfortable. No charger attached.

 

[submatrix]

This is from the GTK app. Honestly though for 2-3 week storage I would just leave it unplugged.

 

[Deleted member 1697]

SOC is relevant. around 50%. 30 to 50...
but beware of not exceed external temperatures !
underground parking is ideal

 

[SwissTaycan]

Thanks everyone!!! Good to go with all these suggestions....

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