Main battery preheat timer?

[smoothound]

Folks,

The preheat timer seems to work well for aircon and seats etc, but it does not preheat the battery, which I would have thought would be useful for better health/performance etc?

The battery was around ambient at time of departure.

Is timed battery preheat before departure a Taycan function? Or is it not required?

I have only set the timer 4 hours or so before departure - is that too short a time for the battery to warm up?

Also the car was already fully charged when I set the timer - So maybe it needs to require some degree of charging to activate battery preheat?

am I missing something?

many thanks

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[Tooney]

Precool/preheat does not heat battery. Charging battery can raise its temperature. Porsche calls heating the battery to optimize DC fast charging "pre-conditioning". It occurs while driving when a DC fast charger (150kw or more) is entered as destination in nav unit.

 

[smoothound]

Precool/preheat does not heat battery. Charging battery can raise its temperature. Porsche calls heating the battery to optimize DC fast charging "pre-conditioning". It occurs while driving when a DC fast charger (150kw or more) is entered as destination in nav unit.

Thanks Tooney - much appreciated - I must admit I couldn't find anything on it - had just assumed it would make sense so may be a function.. cheers

 

[W1NGE]

Folks,

The preheat timer seems to work well for aircon and seats etc, but it does not preheat the battery, which I would have thought would be useful for better health/performance etc?

The battery was around ambient at time of departure.

Is timed battery preheat before departure a Taycan function? Or is it not required?

I have only set the timer 4 hours or so before departure - is that too short a time for the battery to warm up?

Also the car was already fully charged when I set the timer - So maybe it needs to require some degree of charging to activate battery preheat?

am I missing something?

many thanks

The only battery heating you'll get will be as a by product of heating the car.

To properly preheat and precondition the battery you have to select a DC EVSE in NAV as either a destination or stopover.

Since uPdate you don't need to worry too much about preheating/ conditioning the battery.

 

[Boss Hogg]

My battery consistently ends up at 12-13 degrees when I set a departure timer over winter (i.e. now!), happens every morning regardless if plugged in or not. Cabin set to 21 and driver seat heating on.

 

[Tooney]

Since uPdate you don't need to worry too much about preheating/ conditioning the battery.

Would you elaborate? How has uPdate changed this?

 

[W1NGE]

My battery consistently ends up at 12-13 degrees when I set a departure timer over winter (i.e. now!), happens every morning regardless if plugged in or not. Cabin set to 21 and driver seat heating on.

Yes that's normal. No battery preheat.

 

[W1NGE]

Would you elaborate? How has uPdate changed this?

Can't remember the burb but read the press release which talks about speeding up charging at lower temps.

 

[smoothound]

Thanks guys, I now understand that there is no battery preheat for departure on a timer... thanks for the info. So my question is answered..... thanks

But just to clarify - since the discussion seems to be a lot about charging - my question was not about charging at all. It was about driving performance.

I would have thought it would make sense to preheat the battery ready for departure to get optimum battery performance for driving from the get-go. I guess that a very cold battery - especially if you drive quickly from the off - is probably not good for battery health if a large power drain is required suddenly - and probably does not help the car's performance capabilities either. That's just a guess on my part.

But in any case, I now understand that battery preheat before departure is a feature that is not provided - cheers

 

[W1NGE]

Thanks guys, I now understand that there is no battery preheat for departure on a timer... thanks for the info. So my question is answered..... thanks

But just to clarify - since the discussion seems to be a lot about charging - my question was not about charging at all. It was about driving performance.

I would have thought it would make sense to preheat the battery ready for departure to get optimum battery performance for driving from the get-go. I guess that a very cold battery - especially if you drive quickly from the off - is probably not good for battery health if a large power drain is required suddenly - and probably does not help the car's performance capabilities either. That's just a guess on my part.

But in any case, I now understand that battery preheat before departure is a feature that is not provided - cheers

Preheat consumes a lot of energy so I guess that's part of it.

Tonight it's -3C and so I set cabin preheat for 22C. 10 mins later and car is toasty and ice free to drive. Battery temp 9C.

Preheating / preconditioning to a selected DC EVSE via NAV will heat the battery to around 32C as it essentially knows it's going to get fed!

 

[smoothound]

Preheat consumes a lot of energy so I guess that's part of it.

Tonight it's -3C and so I set cabin preheat for 22C. 10 mins later and car is toasty and ice free to drive. Battery temp 9C.

Preheating / preconditioning to a selected DC EVSE via NAV will heat the battery to around 32C as it essentially knows it's going to get fed!

But if it's connected to an EVSE at home - surely that would power the preheat using mains power? Leaving the battery charge untouched?

That is the case I was trying to understand... Why not precondition the battery from the mains supply to allow optimum battery performance from the get-go

cheers

 

[Tooney]

But if it's connected to an EVSE at home - surely that would power the preheat using mains power? Leaving the battery charge untouched?

That is the case I was trying to understand... Why not precondition the battery from the mains supply to allow optimum battery performance from the get-go

cheers

Your question was discussed in another recent thread.

 

[W1NGE]

But if it's connected to an EVSE at home - surely that would power the preheat using mains power? Leaving the battery charge untouched?

That is the case I was trying to understand... Why not precondition the battery from the mains supply to allow optimum battery performance from the get-go

cheers

Warm or cold you get instant power and torque from an EV.

Preheating / preconditioning really aids charging speed when on the road.

 

[smoothound]

Your question was discussed in another recent thread.

thanks - did not find that one

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