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Old Oct 21, 2020 | 01:32 PM
  #31  
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Originally Posted by LexsCTJill
Reading today that the Lexus UX EV batteries are air cooled. RAV4 Prime are liquid cooled.

Interesting to note...Toyota engineers added more room to the cargo area for the EV compared to the UX hybrid.
Air-cooled EVs have very short battery lives. That technology is 10 years old and isn't used anymore. If true, what a disaster.
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Old Oct 21, 2020 | 01:35 PM
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Agreed, 1st gen Leafs had air cooled batteries and their range loss was massive.
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Old Oct 21, 2020 | 01:37 PM
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Originally Posted by Allen K
Agreed, 1st gen Leafs had air cooled batteries and their range loss was massive.
Lexus promises a 10 year warranty and full battery replacement if range dips with a 30% loss.

Whole car is made in Japan I am happy to hear that.
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Old Oct 21, 2020 | 01:39 PM
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Originally Posted by Allen K
Agreed, 1st gen Leafs had air cooled batteries and their range loss was massive.
The air-cooled can't manage heat well and are known to be much less reliable for battery preservation. Maybe thats why they don't sell it in the US....won't survive long in the California summers...hahaha
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Old Oct 21, 2020 | 01:53 PM
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Originally Posted by EZZ
The air-cooled can't manage heat well and are known to be much less reliable for battery preservation. Maybe thats why they don't sell it in the US....won't survive long in the California summers...hahaha
All evidence would suggest this Lexus UX electric would outlast/outperform any other battery on the market..(aside from other Toyota or Honda batteries)...but its too early to know.
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Old Oct 21, 2020 | 01:57 PM
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Originally Posted by LexsCTJill
All evidence would suggest this Lexus UX electric would outlast/outperform any other battery on the market..(aside from other Toyota or Honda batteries)...but its too early to know.
I don't believe there is any evidence to support that as this is Lexus first attempt at a true EV. There are 9 year old Teslas with 300k miles on original battery packs running around with less than 30% degradation so Tesla batteries are proven. You can't believe Toyota or Honda has anywhere near the battery tech that Tesla has.
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Old Oct 21, 2020 | 02:00 PM
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Originally Posted by EZZ
I don't believe there is any evidence to support that as this is Lexus first attempt at a true EV. There are 9 year old Teslas with 300k miles on original battery packs running around with less than 30% degradation so Tesla batteries are proven. You can't believe Toyota or Honda has anywhere near the battery tech that Tesla has.
Doesn't matter if they have the tech or how advanced a tech is....its about the reliability...... I believe Toyota's UX battery degradation warranty is superior to Tesla which they downgraded at some point and have software loop holes.
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Old Oct 21, 2020 | 02:07 PM
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Originally Posted by LexsCTJill
Doesn't matter if they have the tech or how advanced a tech is....its about the reliability...... I believe Toyota's UX battery degradation warranty is superior to Tesla which they downgraded at some point and have software loop holes.
We will agree to disagree then as liquid cooled Tesla batteries have proven to be the most reliable long-term battery ever made for automobiles with the longest history regardless of warranty policy. It will be interesting to see how the UX300 will fare given the inferior battery cooling approach they've taken.
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Old Oct 21, 2020 | 02:08 PM
  #39  
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A warranty doesn't make batteries more reliable.
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Old Oct 21, 2020 | 02:13 PM
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Originally Posted by EZZ
We will agree to disagree then as liquid cooled Tesla batteries have proven to be the most reliable long-term battery ever made for automobiles with the longest history regardless of warranty policy. It will be interesting to see how the UX300 will fare given the inferior battery cooling approach they've taken.
Toyota has liquid cooling batteries..just not used in the UX

Tesla has had their issues with liquid cooling.. I have no idea the outcome of this or if it was resolved, but my money would be on a Toyota battery to outlast a Tesla battery...(time will tell)

https://www.latimes.com/business/sto...cooling-system
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Old Oct 21, 2020 | 02:18 PM
  #41  
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Originally Posted by LexsCTJill
Toyota has liquid cooling batteries..just not used in the UX

Tesla has had their issues with liquid cooling.. I have no idea the outcome of this or if it was resolved, but my money would be on a Toyota battery to outlast a Tesla battery...(time will tell)

https://www.latimes.com/business/sto...cooling-system
My only point was that there is a long history for Tesla lithium ion batteries in EVs and Toyota...no so much. Tesla batteries are actually Panasonic batteries that are packaged up by Tesla. Tesla's secret sauce is their battery management system and their battery packaging along with their proprietary motors.
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Old Oct 21, 2020 | 02:26 PM
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Both Toyota and the Chinese are very shrewd.
Toyota knows that the Chinese steal technology when Toyotas are locally manufactured in China, hence TMC only allows the Lexus UX300e and Toyota C-HR EV to be built in China where the inferior air cooled battery technology can be stolen.
Meanwhile the more premium liquid cooled batteries of the RAV4 Prime are from Japan.
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Old Oct 21, 2020 | 02:28 PM
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Originally Posted by peteharvey
Both Toyota and the Chinese are very shrewd.
Toyota knows that the Chinese steal technology when Toyotas are locally manufactured in China, hence TMC only allows the Lexus UX300e and Toyota C-HR EV to be built in China where the inferior air cooled battery technology can be stolen.
Meanwhile the more premium liquid cooled batteries of the RAV4 Prime are from Japan.
Xpeng already has liquid cooled battery technology. So does Polestar (which is owned by Geely). I think that ship has already sailed
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Old Oct 21, 2020 | 02:45 PM
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Originally Posted by EZZ
My only point was that there is a long history for Tesla lithium ion batteries in EVs and Toyota...no so much. Tesla batteries are actually Panasonic batteries that are packaged up by Tesla. Tesla's secret sauce is their battery management system and their battery packaging along with their proprietary motors.
I don't disagree with what you mention about the merits of Tesla battery tech...but the goal of the UX was not to replicate the Tesla or the tech that Tesla is using....I think Toyota did this for cost efficiency in manufacturing as well as simplicity. I believe air cooling lighter on the weight of the car as well.

My initial reaction is that Tesla will never have the reliability of a Toyota.
https://www.reddit.com/r/teslamotors...mon_according/
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Old Oct 21, 2020 | 02:47 PM
  #45  
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Originally Posted by LexsCTJill
I don't disagree with what you mention about the merits of Tesla battery tech...but the goal of the UX was not to replicate the Tesla or the tech that Tesla is using....I think Toyota did this for cost efficiency in manufacturing as well as simplicity. I believe air cooling lighter on the weight of the car as well.
I also know Toyota does have liquid cooled technology already so i was surprised at them using the air-cooled for a Lexus product. I hope when they bring in the NX300 PHEV, it will have the same battery system as the Rav4 Prime which is an excellent drivetrain.
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