EV general discussion

OspreyO said:
Certainly does. Isn't one of the reasons to preheat other than comfort to reduce the impact on range. So why would it have any effect on range at all.

Considering the money you save over the year the cost of preheating has to be negligible. Cost of heating vs depreciation even less significant. Why would anyone be so negative to a simple convenience. So negative to every aspect..
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Confusing preheating the cabin with preheating the battery now.

Not even gonna explain that. Unless there’s a perpetual motion thing going on ?
 
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Kenai said:
The recent posts in the Overclockers UK EV General Discussion thread involve heated debates on technical aspects of electric vehicles (EVs), including energy efficiency during winter, misconceptions about heating consumption, and technical explanations about windscreen insulation and heat transfer. Participants are discussing personal experiences, challenging each other's knowledge, and highlighting the impact of internet-sourced "expertise." The discussion also includes commentary on driving strategies to optimize EV performance and frequent disagreements about EV-related opinions.
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Shows how boring EV ownership is I guess :)
 
jpaul said:
exactly that ?
so no one replied on whether car can be pursuaded to pre-heat more efficiently/slowly using the heat-pump versus electric(aka ptc jonny ?) heater - no misconceptions there.
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I can start a restraining order if you want, that said you catholics love limits like that yeah?

PS. I don’t even understand your question but the irony is you already think you know the answer…
 
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jpaul said:
exactly that ?
so no one replied on whether car can be pursuaded to pre-heat more efficiently/slowly using the heat-pump versus electric(aka ptc jonny ?) heater - no misconceptions there.
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I can start a restraining order if you want, that said you catholics love limits like that yeah?

PS. I don’t even understand your question but the irony is you already think you know the answer…
 
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OspreyO said:
That's a bit like someone complaining an IT forum is full of boring tech talk.
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I didn’t complain. I think others were. You are right. It’s a techy forum so not sure why it’s an issue. We could talk about battery thermal paste I guess ?
 
Jonnycoupe said:
PS. I don’t even understand your question but the irony is you already think you know the answer…
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you had queried PTV I guess you were being picky as you must have realised I meant PTC which I thought were the most common denomination of electric heater in cars;
a PTC heater responds faster than a more efficient heat-pump would , if there were a means of defrosting the car slower using heat-pump you could save some Watts.
( I'll say a few hail-mary's if necessary )
 
Jonnycoupe said:
Errm ha said eat into range not running cost. 1Kwh on a Nissan Leaf is a lot for example. Far from insignificant. See this is the prob all people just arguing their opinion as the thread is awash with Dunning Kruger exhibits.
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I did mention range, you lose a whole 3 miles.

Sure, that's 5% on a 10 year old car, but on the vast majority of EVs it's insignificant. You'll gain/lose more over a full charge by driving a couple of miles faster/slower.

Simon said:
That’s a lot in mini electric with its 29kwh and ‘only 1kwh’ is enough to go 4 miles.
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Which EV will do 4mi/kwh when the weather is cold enough to need preheating?
 
Anyone requested a letter of ownership from Tesla Financial services? How long did it take ?

I need new number plates tomorrow as I'm supposed to be going away for the weekend and Halfords website states that I need this .
 
Haggisman said:
I did mention range, you lose a whole 3 miles.

Sure, that's 5% on a 10 year old car, but on the vast majority of EVs it's insignificant. You'll gain/lose more over a full charge by driving a couple of miles faster/slower.



Which EV will do 4mi/kwh when the weather is cold enough to need preheating?
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My born on my 12 mile commute when I don’t preheat:cry: it has done 6.2 when I really try in summer. Preheat does count for the trip so will drop to 3 when that’s factored in

What is the rule for ‘needing preheating’ anyway? Surely it depends on people tolerance to cold ? Some people do it everyday

If I preheat the cabin it uses more for that trip for obvious reasons already explained And yes range is impacted for lots of shorter trips. If I only use 3kwh for each trip then an extra 1kwh to warm the cabin for 10mins (or often it seems people use it more) then it starts to be significant doesn’t it.

Completely get the point it needs to warm up anyway in the car but at least it’s moving at the same time.
 
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Because not everybody cares that they use a few kWh to preheat their EV on a cold wet day. I have an I-Pace and my wife drives a C40 with no heat pump. Both are 100% charged at home and the cheapest EV tariff here in N. Ireland is 16.5p at night.

Despite the fact both those EVs have poor to terrible efficiency, we could still preheat using the battery pack two or three times per day in winter. Yes it still works out cheaper than ICE to run both but that’s not why we both went EV.

We didn’t get our EVs to save a few quid on “fuel”*, frankly we never even got them because we care about the environment. We got them for the much better convenience.

* Even with the crap tariff rates and poor efficiency both cars give roughly 110 - 130 mpg equivalent. So fuel savings are still substantial overall.
 
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The whole thing started as Jpaul won’t get an EV cause he has no 4G and so can’t remote heat.

We have now gone miles off that point. But this is what’s started it with the factor it’s not critical. It doesn’t take that long to melt any ice anyway and people often preheat for far too long
 
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I get the desire to have control over remote heat rather than just leaving it on a timer, etc., though personally I'm quite happy to go scrape the ice off and drive off in a cold car until it warms up LOL.
 
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Simon said:
The whole thing started as Jpaul won’t get an EV cause he has no 4G and so can’t remote heat.

We have now gone miles off that point. But this is what’s started it with the factor it’s not critical. It doesn’t take that long to melt any ice anyway and people often preheat for far too long
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Fair enough, that explains it… again :)

Yet the irony is he/they/she will keep an ICE… that they can’t remote heat.
 
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