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As if neither the motors or the batteries need cooling in EV?One other trick I have learned when it comes to winter, is that using the heated seat uses less energy than heating the whole cabin using the climate control.
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When I said that to one of my friends he mentioned that “that’s the good thing about petrol cars, heating them doesn’t use extra fuel” but I quickly pointed out that is because you are always wasting about 50% of your fuel to heat loss, so it only seems like it’s not using extra fuel because you are always just wasting all that energy all the time, so capturing a small portion of it is easy, but EV’s are so efficient that if you want some extra heat most of it has to come from your battery, because there just isn’t the wasted energy anywhere.
The electric motor loses very little heat compared to a petrol motor, and they actually use the small amount of heat they lose to keep the battery warm.As if neither the motors or the batteries need cooling in EV?
More a matter of design not (yet) good enough to get this extra heat back into the cabin at will
not my 2019 model 3, it uses resistance heating for the cabin.Not sure about that. Heated seats use heavy wire as a resistor, electrical current is passed through the wire which heats up because of the resistance. This is an inefficient use of electricity, and is why Tesla changed its cabin heater from a resistor type heater to a heat pump.
I have my climate control set to 22 in the car, and it sits there pretty much all year, sometimes I drop it down to 21.As a practical observation, people often do bizarre things with heating / cooling in cars.
Like running the A/C compressor literally every time they drive the car whether needed or not, then turning the heating up if they feel cold. Unless the aim is to reduce humidity, which sometimes it is but usually it isn't, then that's a bizarre thing to be doing.
Oh how I wish our schools would put more focus on teaching physics.
I have my climate control set to 22 in the car, and it sits there pretty much all year, sometimes I drop it down to 21.
When reading about vehicle A/C last night, an maintenance guy did suggest running it atleast every 2 weeks.I have found that having the climate control on all year round improves the reliability of the A/C system.
When the A/C is running the compressor is pumping the refrigerant and lubricant around the whole system, the internal pipes, valves and other components remain wet and protected from acids and moisture corrosion.
Having the system turned off for long periods causes the lubricant to fall to the lowest spot, internal components lose the protective oil barrier and become susceptible to corrosion. The compressor is prone to vibration damage when stationary for long periods and continual engine vibration, which causes the compressors internal components to vibrate with no lubricant barrier.
When reading about vehicle A/C last night, an maintenance guy did suggest running it atleast every 2 weeks.
Spot on @JohnDe your post is a good heads up for members, even home A/C's should be given a run an a regular basis, otherwise when you need them they don't work, for the reasons you have covered.Yes, always recommended. Though few owners remember to do it. Some manufacturers, like Nissan, used to have the A/C compressor operate when selecting Reverse.
It doesn't matter the quality or how good the refrigerant hoses are, they are permeable. A coating of lubricant on the inside of the hoses improves the sealing and reduces refrigerant loss significantly, The lubricant is distributed by refrigerant flow controlled by the compressor.
And for more details on thermal mgt for EV:As if neither the motors or the batteries need cooling in EV?
More a matter of design not (yet) good enough to get this extra heat back into the cabin at will
And for more details on thermal mgt for EV:
Plenty of heat available to warm the habitacle..but not as easy as pumping air from an ice engine roomEV Thermal Management or Cooling EVs - Lubes'N'Greases
Future analysts will point to 2019 as the start of the groundswell in electric driving, certainly in terms of new models. In 2018, virtually all major manufacturers presented a mass-market battery electric vehicle, including PSA and Volkswagen Group. In China, the push for BEVs continued...www.lubesngreases.com
I think you need to get your facts a bit straighter, Yes the motor in a Tesla produces heat when its moving, but no where near the amount of heat that an Ice car does and It does idle like an ice car. Most of this waste heat is diverted to the battery to keep it at its ideal temp, because except for when its super charging or under really higher loads or in really hot weather the battery doesn't need cooling, it actually needs warming.And for more details on thermal mgt for EV:
Plenty of heat available to warm the habitacle..but not as easy as pumping air from an ice engine roomEV Thermal Management or Cooling EVs - Lubes'N'Greases
Future analysts will point to 2019 as the start of the groundswell in electric driving, certainly in terms of new models. In 2018, virtually all major manufacturers presented a mass-market battery electric vehicle, including PSA and Volkswagen Group. In China, the push for BEVs continued...www.lubesngreases.com
How Long Does A Tesla Battery Last In Australia?
How long does a Tesla battery last in Australia? This is becoming more of a common question now that Tesla has doubled its presence on Australian roads. Teslas are everywhere! Someone recently commented that they are becoming as common as cockroaches and cane toads. As these questioners appear to be genuine, I thought I would do some research to dispel their concerns about how long a Tesla battery lasts in Australia.
My usual response is to quote the warranty of 160,000 km. But I am fast coming to the conclusion that this answer is no longer relevant. I read recently that some battery recyclers in the US are complaining that the batteries are not degrading fast enough and they need more stock. Actually, CleanTechnica wrote about this way back in 2016.
There are very few Teslas that have done high mileage in Australia. Until the advent of the Model 3 three years ago, Teslas were quite rare on our roads. However, a request for information in the Tesla Owners Club of Australia Facebook page revealed evidence that Tesla batteries are outlasting and outperforming their original expectations.
How long does a Tesla battery last?
Mark Tipping, National President of the Tesla Owners Club of Australia, responded: “My 2015 Model S P85D has driven 271,000km. Tesla recently advised me that the HV leads between battery and motor have some corrosion and they are replacing them under warranty. I didn’t know but an alert was sent by the car to Tesla!! The battery reports 6.9% degradation.
My other MS P100DL+ has done 200,000 km and I recently stretched that to a 600+ km range in Central Oz. Battery degradation is simply not a reality in a modern well managed EV.”
The owner of a Model S, Model 3, and Model Y reports that he has driven over half a million kilometers in his 2018 Model S. He does airport pickups and dropoffs in the Byron area and has probably done the highest number of kms in Australia. But, we still don’t know how long a Tesla battery lasts!
David Nye reports that his first S85 bought in February 2015 has now driven 312,000 km with about 10% battery degradation. “Actually, most degradation happens in about the first 12 months or so. It then levels off pretty dramatically,” David adds.
These answers defy the FUD-creating Facebook posts that allege that a Tesla battery will have to be replaced after 8 years (the warranty period). That’s equivalent to saying that an ICE engine only lasts as long as the warranty. This is then added to speculation that a battery pack may cost up to $30,000. Maybe we should stop calling it FUD and call it future fear coupled with massive ignorance and misinformation. FFMIM?
We also encounter confusion between the 12-volt battery used in most ICE cars (and Teslas) and the long-range battery in a Tesla. ICE car batteries die, dead, like a dodo. EV car batteries have a different chemistry and better management, so they degrade. You won’t stop dead on the highway or get stuck in your garage waiting for the RACQ.
Anecdotal comments from other countries talk of taxis in Scandinavia that have achieved over 750,000 km; and ones in Holland that have done over 900,000 km. Even in New Zealand there are Model S’s that have exceeded the warranty period with minor degradation: a 2014 Model S P85+ with 150,000 km (6% degradation) and a 2015 Model S P90 with 170,000 km on the clock and about 8% loss of range shown on the dash.
As for my Tess, we have only had her 3 years and driven over 90,000 km. Due to an over-the-air update to our battery management software, far from having battery degradation, we now have an extra 6% of range compared to new.
So, how long does a Tesla battery last in Australia? I think the best answer you can give is: long enough.
Good evening JohnDe have been thinking about EV's since you invested way back when. Since then though a family I do a lot of work for, and he is no dud, have bought a Hybrid model. in under 12 months the battery died leaving him stranded in the middle of South Perth at a medical facility. Quite an expensive exercise to get a replacement battery and get and running again. BUT me and she are still toying with the idea, and our nxt and final vehicle purchase will either a full EV or a Hybrid. 50/50.Tesla are looking to build more Gigafactory's, one to be announced very soon and it is possibly Canada. If Australian governments and industry put their heads together we could offer try and get into the next round a few year from now.
Imagine having a Tesla Gigafactory build in Australia. New technologies, improved capabilities for our work force, refining of our minerals in our own backyard, supplying EVs to countries in our region. We have all the raw materials. land and sun, we have the technical colleges which the Feds are going to boost with more funding.
Wouldn’t that be covered under warranty?Good evening JohnDe have been thinking about EV's since you invested way back when. Since then though a family I do a lot of work for, and he is no dud, have bought a Hybrid model. in under 12 months the battery died leaving him stranded in the middle of South Perth at a medical facility. Quite an expensive exercise to get a replacement battery and get and running again. BUT me and she are still toying with the idea, and our nxt and final vehicle purchase will either a full EV or a Hybrid. 50/50.
Good evening JohnDe have been thinking about EV's since you invested way back when. Since then though a family I do a lot of work for, and he is no dud, have bought a Hybrid model. in under 12 months the battery died leaving him stranded in the middle of South Perth at a medical facility. Quite an expensive exercise to get a replacement battery and get and running again. BUT me and she are still toying with the idea, and our nxt and final vehicle purchase will either a full EV or a Hybrid. 50/50.
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