From what I have found out on the internet , the Leaf battery works well in more northern climates .
The class action lawsuit was brought by Leaf owners in Arizona . They were experiencing accelerated battery degrading .
I can not speak very much as far as the Volt battery situation . I have , however , done some research on the Chevy Spark EV . ( It may be similar to the Volt ? )
The Spark EV has an active thermal management system for the battery . Dexcool GM orange coolant is user to hear or cool the battery . If cooling is needed , the A/C compressor is run , cooling the Dexcool , which is circulated through the battery cooling system . I am guessing , when the battery needs warming , the Dexcool is warmed , bit it is just a guess . There may be heating elements installed in the battery pack .
My understanding is the Spark EV battery is not affected very much by heat .
Evidently , this thermal management system works well . As such , I do not know , but suspect the up coming Chevy Bolt will probably use some form of this system ?
The Bolt is projected to have 200 mile ( or better ) range .
God bless
Wyr
PS It seems some variations of lithium battery chemistry is more heat tolerant than others . I think the 2015 Leafs got a newer " lizard " battery which is suppose to be more heat tolerant ?
The early 24 kwh batteries that get replaced by Nissan ( whether on Nissan's dime or the customer's dime ) are suppose to be " Lizard " batteries .
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