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Battery temp management for new leaf

Posted: Fri Aug 25, 2017 6:37 am
by Tony828
Considering the new 2018 Leaf. I live in south Florida and the temperature is in the 80-90's F in the summer; and the garage is in high 80' all summer. Any news regarding better battery thermal management for the new 2018 Leaf? For current Leaf, the Bolt and Tesla have better battery liquid cooling systems; if the Leaf keeps the same air cooling system, I may've to get a used Tesla.

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 7:03 am
by Durandal
Don't hold your breath on there being active cooling on the new Leaf. Style redesign plus a bigger battery is what's happening. But we should know for sure in about 2-3 weeks.

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 7:25 am
by SageBrush
Some months ago the chief engineer for the LEAF expressed his confidence in the current passive heat dissipation battery packaging to handle heat load in the LEAF2 and nixed any idea of an active cooling system.

I don't have the link, but I remember the article well because I wrote off the LEAF as a future player on that day.

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 9:50 am
by Tony828
SageBrush wrote:Some months ago the chief engineer for the LEAF expressed his confidence in the current passive heat dissipation battery packaging to handle heat load in the LEAF2 and nixed any idea of an active cooling system.

I don't have the link, but I remember the article well because I wrote off the LEAF as a future player on that day.
Thank you, that answers my question and made my decision easier!

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 3:48 pm
by TomT
Funny, they said the same thing about the Gen 1 and we all know how THAT worked out! :)
SageBrush wrote:Some months ago the chief engineer for the LEAF expressed his confidence in the current passive heat dissipation battery packaging to handle heat load in the LEAF2 and nixed any idea of an active cooling system.

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 4:41 pm
by edatoakrun
Tony828 wrote:Considering the new 2018 Leaf. I live in south Florida and the temperature is in the 80-90's F in the summer; and the garage is in high 80' all summer. Any news regarding better battery thermal management for the new 2018 Leaf? For current Leaf, the Bolt and Tesla have better battery liquid cooling systems; if the Leaf keeps the same air cooling system, I may've to get a used Tesla.
Liquid cooling is only cost effective if If you have a very expensive pack, or in instances when a flammable battery pack (tesla) makes it a safety requirement.

As battery costs continue to fall rapidly, the added expense and efficiency penalty of liquid cooling makes even less sense than it did in the past.

Seven years ago, The LEAF was (and still is) a far superior BEV for most buyers, for having the "better" conductive battery cooling design.

It would be disappointing if Nissan, in a misguided attempt to satisfy common stupidity, handicaps the Gen two leaf with liquid cooling.

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 5:51 pm
by SageBrush
edatoakrun wrote:
Tony828 wrote:Considering the new 2018 Leaf. I live in south Florida and the temperature is in the 80-90's F in the summer; and the garage is in high 80' all summer. Any news regarding better battery thermal management for the new 2018 Leaf? For current Leaf, the Bolt and Tesla have better battery liquid cooling systems; if the Leaf keeps the same air cooling system, I may've to get a used Tesla.
Liquid cooling is only cost effective if If you have a very expensive pack, or in instances when a flammable battery pack (tesla) makes it a safety requirement.

As battery costs continue to fall rapidly, the added expense and efficiency penalty of liquid cooling makes even less sense than it did in the past.

Seven years ago, The LEAF was (and still is) a far superior BEV for most buyers, for having the "better" conductive battery cooling design.

It would be disappointing if Nissan, in a misguided attempt to satisfy common stupidity, handicaps the Gen two leaf with liquid cooling.
A large fraction of Nissan batteries are losing 20% capacity a year.

You are welcome to the brilliant design. I suggest you buy three.

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 5:52 pm
by SageBrush
SageBrush wrote:
edatoakrun wrote:
Tony828 wrote:Considering the new 2018 Leaf. I live in south Florida and the temperature is in the 80-90's F in the summer; and the garage is in high 80' all summer. Any news regarding better battery thermal management for the new 2018 Leaf? For current Leaf, the Bolt and Tesla have better battery liquid cooling systems; if the Leaf keeps the same air cooling system, I may've to get a used Tesla.
Liquid cooling is only cost effective if If you have a very expensive pack, or in instances when a flammable battery pack (tesla) makes it a safety requirement.

As battery costs continue to fall rapidly, the added expense and efficiency penalty of liquid cooling makes even less sense than it did in the past.

Seven years ago, The LEAF was (and still is) a far superior BEV for most buyers, for having the "better" conductive battery cooling design.

It would be disappointing if Nissan, in a misguided attempt to satisfy common stupidity, handicaps the Gen two leaf with liquid cooling.
A large fraction of Nissan batteries are losing 10 - 20% capacity a year. The 80% depreciation in 3 years is in large part due to the crappy battery pack.
You are welcome to the brilliant design. I suggest you buy three.

As for the Tesla FUD -- your are FOS

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 6:22 pm
by Tony828
edatoakrun wrote:
Tony828 wrote:Considering the new 2018 Leaf. I live in south Florida and the temperature is in the 80-90's F in the summer; and the garage is in high 80' all summer. Any news regarding better battery thermal management for the new 2018 Leaf? For current Leaf, the Bolt and Tesla have better battery liquid cooling systems; if the Leaf keeps the same air cooling system, I may've to get a used Tesla.
Liquid cooling is only cost effective if If you have a very expensive pack, or in instances when a flammable battery pack (tesla) makes it a safety requirement.

As battery costs continue to fall rapidly, the added expense and efficiency penalty of liquid cooling makes even less sense than it did in the past.

Seven years ago, The LEAF was (and still is) a far superior BEV for most buyers, for having the "better" conductive battery cooling design.

It would be disappointing if Nissan, in a misguided attempt to satisfy common stupidity, handicaps the Gen two leaf with liquid cooling.
Nissan's battery degradation is common knowledge for years. Your Ignorance, lack of education and reasoning, are coming through Laod and clear. Usually I don't respond to profanity, for the same reason I don't answer a barking dog in the street. But in this case you needed to know about yourself before the day is done.

Re: Battery temp management for new leaf

Posted: Fri Aug 25, 2017 6:38 pm
by Jedlacks
[/quote]A large fraction of Nissan batteries are losing 20% capacity a year.

You are welcome to the brilliant design. I suggest you buy three.[/quote]

This may be sarcasm, but I am unsure...
If you said a small fraction is losing 20% of range a year It would make sense. Then again, you did not say what "size" fraction, but saying a large fraction can be misleading. Nevertheless, this is the internet(s) and we are entitled to our our facts.

My fact checking involved a calculator and taking a 20% reduction each year. Try it out. Fact check your own statement