Overheating and electrical cutout

[bwt]

I have what seems to be an ongoing problem with battery overheating and electrical cutout when charging. My Turbo has been back to the dealer and parts have been replaced but the problem remains.

On long journeys the battery temp seems to stay somewhere between 28 and 34 deg c. If I push the engine hard, it rises. Gentler driving, it falls. When I stop to recharge at Ionity, the temperature will rise quickly and I have found the somewhere between 40 and 45 deg c, there is a complete elec shut down. The only solution to which is to wait around an hour for the temp to fall to under 40 deg c, whereupon everything is back to normal. As soon as I drive off, the engine temp falls to the 28 - 34 deg c range and I can continue. i.e the cooling system kicks in. When the car is being charged, I can hear/feel the cooling system but it doesn’t seem to be able to cope.

Has anyone had similar problems? Any ideas? Any thoughts on what temperature there should be elec cutout - 45 deg c seems relatively low. All advice greatly appreciated.

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[f1eng]

I have what seems to be an ongoing problem with battery overheating and electrical cutout when charging. My Turbo has been back to the dealer and parts have been replaced but the problem remains.

On long journeys the battery temp seems to stay somewhere between 28 and 34 deg c. If I push the engine hard, it rises. Gentler driving, it falls. When I stop to recharge at Ionity, the temperature will rise quickly and I have found the somewhere between 40 and 45 deg c, there is a complete elec shut down. The only solution to which is to wait around an hour for the temp to fall to under 40 deg c, whereupon everything is back to normal. As soon as I drive off, the engine temp falls to the 28 - 34 deg c range and I can continue. i.e the cooling system kicks in. When the car is being charged, I can hear/feel the cooling system but it doesn’t seem to be able to cope.

Has anyone had similar problems? Any ideas? Any thoughts on what temperature there should be elec cutout - 45 deg c seems relatively low. All advice greatly appreciated.

My experience is with racing not road car batteries but...
The cells have to be kept in a narrow, and low, temperature range for reliability and safety. 45C is a safe upper limit for long life.
The battery pack probably has multiple temperature sensors even if the display is only a single average value.
Maybe you have a hot spot in your battery pack so it is getting too hot in one local area?
Have you checked the coolant level?

 

[Scandinavian]

I have what seems to be an ongoing problem with battery overheating and electrical cutout when charging. My Turbo has been back to the dealer and parts have been replaced but the problem remains.

On long journeys the battery temp seems to stay somewhere between 28 and 34 deg c. If I push the engine hard, it rises. Gentler driving, it falls. When I stop to recharge at Ionity, the temperature will rise quickly and I have found the somewhere between 40 and 45 deg c, there is a complete elec shut down. The only solution to which is to wait around an hour for the temp to fall to under 40 deg c, whereupon everything is back to normal. As soon as I drive off, the engine temp falls to the 28 - 34 deg c range and I can continue. i.e the cooling system kicks in. When the car is being charged, I can hear/feel the cooling system but it doesn’t seem to be able to cope.

Has anyone had similar problems? Any ideas? Any thoughts on what temperature there should be elec cutout - 45 deg c seems relatively low. All advice greatly appreciated.

That sounds like a coolant problem. Nothing like that has ever happened to me

I have driven 55k km on mainly fast motorways and never had any cut outs. Outside temperatures have been up to 35 C. Battery temperature when driving normal mode about 30-32 C and when navigating to a charger up to 42 C. My temperature has risen to close to 50 C during Ionity charge at 260 kW and 35C - 38 air temp. Still no overheating. So that is not normal at all.

Lately I have also tried to navigate to an Ionity station in Sport plus mode and started charging. When it is hot outside the cooling fans have kicked in massively and you Can clearly hear them working. People have turned around to look once they start.

 

[Gru]

and it stops AC inside the car.

 

[tchavei]

about a month ago or so I was charging up at a ionity station at 264kW in 41C heat (in Spain) and there was a point (around the 50-60% mark) when the car lit up turtle mode from the battery temperature and stayed like that almost until the end of charge. During that time I was actually worried I would leave the charging stall in limp mode but it corrected itself. I guess it was just overheating from the high charge. Nothing like a cutout at all though.

 

[r553]

Is your air condition working normally? That system is also used to cool the battery.

 

[daveo4EV]

I have what seems to be an ongoing problem with battery overheating and electrical cutout when charging. My Turbo has been back to the dealer and parts have been replaced but the problem remains.

On long journeys the battery temp seems to stay somewhere between 28 and 34 deg c. If I push the engine hard, it rises. Gentler driving, it falls. When I stop to recharge at Ionity, the temperature will rise quickly and I have found the somewhere between 40 and 45 deg c, there is a complete elec shut down. The only solution to which is to wait around an hour for the temp to fall to under 40 deg c, whereupon everything is back to normal. As soon as I drive off, the engine temp falls to the 28 - 34 deg c range and I can continue. i.e the cooling system kicks in. When the car is being charged, I can hear/feel the cooling system but it doesn’t seem to be able to cope.

Has anyone had similar problems? Any ideas? Any thoughts on what temperature there should be elec cutout - 45 deg c seems relatively low. All advice greatly appreciated.

your car has a defect - if the dealer can't get it fixed in a reasonable number of visits - time to discuss returning it as defective and moving on to another vehicle - this problem is _NOT_ endemic to the Taycan fleet

sorry for your troubles.

 

[WattTurbo]

I have what seems to be an ongoing problem with battery overheating and electrical cutout when charging. My Turbo has been back to the dealer and parts have been replaced but the problem remains.

On long journeys the battery temp seems to stay somewhere between 28 and 34 deg c. If I push the engine hard, it rises. Gentler driving, it falls. When I stop to recharge at Ionity, the temperature will rise quickly and I have found the somewhere between 40 and 45 deg c, there is a complete elec shut down. The only solution to which is to wait around an hour for the temp to fall to under 40 deg c, whereupon everything is back to normal. As soon as I drive off, the engine temp falls to the 28 - 34 deg c range and I can continue. i.e the cooling system kicks in. When the car is being charged, I can hear/feel the cooling system but it doesn’t seem to be able to cope.

Has anyone had similar problems? Any ideas? Any thoughts on what temperature there should be elec cutout - 45 deg c seems relatively low. All advice greatly appreciated.

Just got home from a 400 miles road trip where it’s 114F outside (Taycan dash display), and was doing between 85-90MPH and the battery temp reached 116F. After having read your post this morning before I left for the trip, I got a bit worried so I slowed down to 80MPH, and the battery temp lowered to 112F. I have never seen this high temp before but the power was never cutoff nor did I see any error on the dash. It’s a little bit concerning though, and it t sucks that I had to drive the rest of the trip at a slower pace than my liking.

 

[Gru]

about a month ago or so I was charging up at a ionity station at 264kW in 41C heat (in Spain) and there was a point (around the 50-60% mark) when the car lit up turtle mode from the battery temperature and stayed like that almost until the end of charge. During that time I was actually worried I would leave the charging stall in limp mode but it corrected itself. I guess it was just overheating from the high charge. Nothing like a cutout at all though.

(if) next time that happens, start the car and use Sport Plus mode.
As described by Scandinavian, fans will do the job and hopefully decrease battery temp so it can continue to charge fast.

 

[daveo4EV]

Just got home from a 400 miles road trip where it’s 114F outside (Taycan dash display), and was doing between 85-90MPH and the battery temp reached 116F. After having read your post this morning before I left for the trip, I got a bit worried so I slowed down to 80MPH, and the battery temp lowered to 112F. I have never seen this high temp before but the power was never cutoff nor did I see any error on the dash. It’s a little bit concerning though, and it t sucks that I had to drive the rest of the trip at a slower pace than my liking.

power will not be "cut" until the battery is at 132F - even then you'll still have at least 40-60% throttle and the car will work find - at that level of throttle the max discharge rate is low enough the the battery cooling the compensate for the discharge thermals…

unless the battery is over 132F there is nothing to worry about.

 

[WattTurbo]

power will not be "cut" until the battery is at 132F - even then you'll still have at least 40-60% throttle and the car will work find - at that level of throttle the max discharge rate is low enough the the battery cooling the compensate for the discharge thermals…

unless the battery is over 132F there is nothing to worry about.

I see. It’s weird because that was the return leg when it happened. The day before was the going leg with similar ambient temperature , wind, and speed and the battery temperature did not get that high.

 

[tchavei]

(if) next time that happens, start the car and use Sport Plus mode.
As described by Scandinavian, fans will do the job and hopefully decrease battery temp so it can continue to charge fast.

I was in sport plus. Everyone around me turned around when those fans started blowing. Sounded like a nuclear reactor and you could see the hot air wobble coming out above the front wheels. ?

I should be hired by Porsche to test these EVs in extreme conditions ?

 

[WasserGKuehlt]

I should be hired by Porsche to test these EVs in extreme conditions ?

Note if that comes to pass, they'll also send you to Arjeplog (Lapland, SWE). ?‍

 

[tchavei]

Note if that comes to pass, they'll also send you to Arjeplog (Lapland, SWE). ?‍

I feel technically dead below 18C so definitely not my cup of tea.

And I thinking I grew up in Germany with occasional -30C in the winter... People can change.

 

[Slappy_G]

I feel technically dead below 18C so definitely not my cup of tea.

And I thinking I grew up in Germany with occasional -30C in the winter... People can change.

When it gets to around that -10F (-25C) or so temperature, you can go outside with a boiling hot cup of water and throw it up in the air, and it will instantly turn into a mix of steam and snow. It's awesome as hell!

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