EV general discussion

5kW is significant and a high amount of that will be the cabin comfort aswell as battery management - VW may have a more demanding cabin comfort or infact warm up profile to maximise regen and motor power as soon as possible. If range is going to be a concern then precondition of course serves well to maximise that.

My car for example has heated screens auto turn off below 5C. Didn’t even care in an ICE but as I can configure the Home Screen I can see how much energy they are using through the screen graphics and will turn them off. Less tech savvy will just drive with everything on full whack not aware of energy whilst wearing coats and gloves for that trip to the station.

It’s just science... which I guess why the public will struggle to start with. I think I get the logic of driving to work with the energy demand of 2 kettles on full.

fair concern, can’t be fixed though.

same people probably complain their boiler at home uses more gas in winter...
 
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Jonnycoupe said:
5kW is significant and a high amount of that will be the cabin comfort aswell as battery management - VW may have a more demanding cabin comfort or infact warm up profile to maximise regen and motor power as soon as possible. If range is going to be a concern then precondition of course serves well to maximise that.

My car for example has heated screens auto turn off below 5C. Didn’t even care in an ICE but as I can configure the Home Screen I can see how much energy they are using through the screen graphics and will turn them off. Less tech savvy will just drive with everything on full whack not aware of energy whilst wearing coats and gloves for that trip to the station.

It’s just science... which I guess why the public will struggle to start with. I think I get the logic of driving to work with the energy demand of 2 kettles on full.

fair concern, can’t be fixed though.

same people probably complain their boiler at home uses more gas in winter...
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The odd thing is though that it seems to be so much worse on the iD3 than any other electric car. My Tesla never ever dropped below the equivalent of 2 miles per kW after doing extreme performance testing (until we all felt quite sick) and the Kona has only once dropped below 3 miles per kW and that was at 80mph on a long run on a freezing day. Do you recognise that sort of impact from having the heater(s) on in the iPace? There are no threads on any forums about it that I've seen. Nor the Polestar, Zoe - even the Leaf. And people love to complain about the Leaf.
 
I think it’s just an exceptionally cold snap we have had in the UK which is skewing it? Especially if it might not have been driven for days. Heated screens seem to be the big energy sapper in mine, the water heater is about 4kW I think which works in conjunction with the heat pump, also smart climate just puts the heat local to occupied seats.

I can pop it into eco range jumps 17miles, heated wheel and seats turn off and you feel the cabin temp starts to drop. As the UK warms and my journey is close to 100 miles not 200 I just crack on and not worry.

In -2c I ran a precondition cycle. After 20mins the range had gone from 121miles up to 142.
 
The ID.3 is still very much an unfinished project in the software department, maybe they can improve the way the battery heating is done in colder temps.Obviously the bigger battery versions need more heat, but also lose less range due to the energy consumption. When the base level vehicle is released with a 48kWh pack vs, the current 58, or 77 versions I can imagine it will have much more of an impact on those who want to do lots of short journeys in a week/day on the consumption/efficiency of the vehicle, which although individually might not be a big deal, the running costs could be much higher for those who don't own a home charger.
 
jpaul said:
seems a certain amount of irony because the id3 heat pump option, is more efficient/innovative with c02 than anyone else ..
so maybe they did reduce costs on electrical heating implementation.
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The heat pump on the ID3 and 4 is a £1.2k option, which is a lot of pre-warming and use before you start to break even.
 
Can’t look at it like that purely though. Might help you sell it if a cluster of similar cars exist though, or allow you to keep the mid range battery and keep 5 seats.
 
SDK^ said:
The heat pump on the ID3 and 4 is a £1.2k option, which is a lot of pre-warming and use before you start to break even.
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in the UK market ... It'll be a cheaper option, like for M3 (free?) , tomorrow, with an accelerated delivery, if users really have issues. ..
sounds like a new emissions scandal simmering WLTP discredited.
 
Journey said:
The battery heater is part of the cars build, not something you can deselect as an option, you may be thinking of the heat pump.

The issue is to do with the battery heater using a great deal of energy when it is cold, in order to get the temperature of the pack up to a level VW have deemed acceptable for use, so when doing short journeys of a few miles there is huge amount of energy used just to warm the pack up, and inevitably also the PTC heater to warm you inside the car, so the efficiency looks abysmal. On longer runs the actual efficiency even in the cold is no where near as bad as being made out.
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Yep... Thinking of the heat pump!

Do you know if the battery heater is something which can be switched on to Pre warm?

For example the wife leaves at 08. 30, can we Pre heat the car and the batteries?

As we are leasing and only having it for 3 years the car will literally be connected every night so it's always fully charged so if it was Pre heated it should hopefully allow the extra miles.
 
GinG said:
Yep... Thinking of the heat pump!

Do you know if the battery heater is something which can be switched on to Pre warm?

For example the wife leaves at 08. 30, can we Pre heat the car and the batteries?

As we are leasing and only having it for 3 years the car will literally be connected every night so it's always fully charged so if it was Pre heated it should hopefully allow the extra miles.
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Yes, you’ll use the same electricity but not from the battery.
 
GinG said:
Yep... Thinking of the heat pump!

Do you know if the battery heater is something which can be switched on to Pre warm?

For example the wife leaves at 08. 30, can we Pre heat the car and the batteries?

As we are leasing and only having it for 3 years the car will literally be connected every night so it's always fully charged so if it was Pre heated it should hopefully allow the extra miles.
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Unless you need the extra miles it’s likely to be false economy preconditioning from the grid close to a National increase in demand.
 
GinG said:
Yep... Thinking of the heat pump!

Do you know if the battery heater is something which can be switched on to Pre warm?

For example the wife leaves at 08. 30, can we Pre heat the car and the batteries?

As we are leasing and only having it for 3 years the car will literally be connected every night so it's always fully charged so if it was Pre heated it should hopefully allow the extra miles.
Click to expand...

That is an option, pre-heating obviously if you get a very cold week/month then you could be looking at a substantial amount of time to warm to pack up to temperature every day, and the cost associated with that.
 
WJA96 said:
Yes, you’ll use the same electricity but not from the battery.
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Jonnycoupe said:
Unless you need the extra miles it’s likely to be false economy preconditioning from the grid close to a National increase in demand.
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Thanks both

Just going to get the car and see what happens. Regardless of the extra electric usage by Pre conditioning still saves much more money so maybe something to consider for longer journeys but day to day we can get away with as low as 50 miles range.
 
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