EV Battery Life and Ambient Temp
Discussion
anonymous said:
[redacted]
Tesla's typically have a very low drag coefficient, drag is a function of Cross sectional area, even if a caravan had the same Drag Coefficient, due to the large CSA of the Caravan, drag will be high.So the vehicle has to do more work to pull the caravan at speed, possibly double or triple, hence the significant reduction in range.
From a simplistic POV, it's like sticking a big parachute on the back of the car and trying to drive at the same speed.
Curiosity got the better of me so I googled and read this... https://www.baileyofbristol.co.uk/news-events/can-...
On a speed read it doesn't say the concluded range. But looks like it's just over 100 miles with caravan against a displayed rage of 376 without.
On a speed read it doesn't say the concluded range. But looks like it's just over 100 miles with caravan against a displayed rage of 376 without.
BertBert said:
anonymous said:
[redacted]
Not sure it's all that handy, there's not a huge amount of amps available with camp site hook ups.I didn't know that Teslas were tow-capable. And it would definitely destroy their range!
If your there for 3-4 days and not going too far on days out, it actually works well.
I guess someone could come along with a posh caravan with additional integrated battery and a 400v lead to connect into the car….
I fear caravanning will not die in the EV age.
Edited by dgswk on Sunday 25th July 13:21
red_slr said:
Probably not, the warm weather makes the range better.
The colder the shorter the range.
Maybe towing has decreased the range perhaps?
Warm weather yes, but not hot. Peak battery performance is around 25C ambient. However at higher temperatures than that range drops as quickly as it does the other side (colder) of the peak.The colder the shorter the range.
Maybe towing has decreased the range perhaps?
dgswk said:
Took the Polestar camping a few weeks ago, it was fine, plugged it into a hookup overnight, turned charge down a bit as wanted to use other stuff and it added 20% over night. Told campsite owners I was doing it out of politeness and offered them a fiver to cover it. They were not fussed.
If your there for 3-4 days and not going too far on days out, it actually works well.
I guess someone could come along with a posh caravan with additional integrated battery and a 400v lead to connect into the car….
I fear caravanning will not die in the EV age.
£100k caravan?If your there for 3-4 days and not going too far on days out, it actually works well.
I guess someone could come along with a posh caravan with additional integrated battery and a 400v lead to connect into the car….
I fear caravanning will not die in the EV age.
Edited by dgswk on Sunday 25th July 13:21
Interestingly, nobody seems to have asked the question 'where they broken down or just pausing their journey?' It's been assumed they were stopped with a flat battery. Key thing there is the word 'assumed'. Does anyone know??
Of course, towing will hammer the range. Much like it will hammer the range of a tank of fuel on an ICE vehicle.
Of course, towing will hammer the range. Much like it will hammer the range of a tank of fuel on an ICE vehicle.
Probably not an issue for cars with proper thermal management systems.
But I do recall reading about 1st gen Leafs in Arizona not lasting too long in their extreme heat. Those cars of course had no cooling off the battery pack beyond what they could sink away into the vehicle body and with air running over it.
But I do recall reading about 1st gen Leafs in Arizona not lasting too long in their extreme heat. Those cars of course had no cooling off the battery pack beyond what they could sink away into the vehicle body and with air running over it.
anonymous said:
[redacted]
My guess would be because they can get 300 miles normally they may assume they can get 250 with a caravan and simply don't believe the readout that says they have a 90 mile range maybe. Or the range says 50 miles and the chargers are 15 miles away so they assume they'll make it.
Only they will know.
Chris-S said:
Interestingly, nobody seems to have asked the question 'where they broken down or just pausing their journey?' It's been assumed they were stopped with a flat battery. Key thing there is the word 'assumed'. Does anyone know??
Of course, towing will hammer the range. Much like it will hammer the range of a tank of fuel on an ICE vehicle.
The numbers are vastly different. Of course, towing will hammer the range. Much like it will hammer the range of a tank of fuel on an ICE vehicle.
It might be 10-20% reduction in a ICE taking your 500 mile range to 400 but it will be 50-60% of your 250 mile range in an EV.
Think of an ICE car as having a 1000kwh battery and you realise how much more energy they have available to play with. Countered a bit by being significantly less efficient to start with.
[quote=dgswk]
Took the Polestar camping a few weeks ago, it was fine, plugged it into a hookup overnight, turned charge down a bit as wanted to use other stuff and it added 20% over night. Told campsite owners I was doing it out of politeness and offered them a fiver to cover it. They were not fussed.
If your there for 3-4 days and not going too far on days out, it actually works well.
/quote]
Yes, I imagine it could work ok with around the 16A you should get provided you are not using 8A to heat the water and 1A for everything else and try to use 10A for charging the car.
Took the Polestar camping a few weeks ago, it was fine, plugged it into a hookup overnight, turned charge down a bit as wanted to use other stuff and it added 20% over night. Told campsite owners I was doing it out of politeness and offered them a fiver to cover it. They were not fussed.
If your there for 3-4 days and not going too far on days out, it actually works well.
/quote]
Yes, I imagine it could work ok with around the 16A you should get provided you are not using 8A to heat the water and 1A for everything else and try to use 10A for charging the car.
BertBert said:
Curiosity got the better of me so I googled and read this... https://www.baileyofbristol.co.uk/news-events/can-...
On a speed read it doesn't say the concluded range. But looks like it's just over 100 miles with caravan against a displayed rage of 376 without.
The way I read it 99 miles covered with 54 miles range remaining from a predicted 376.On a speed read it doesn't say the concluded range. But looks like it's just over 100 miles with caravan against a displayed rage of 376 without.
That's with a very modest caravan too.
This video compares the Cybertruck to an F150 in towing capability (theoretically atleast)
https://youtu.be/S4W-P5aCWJs
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