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Message: <blockquote data-quote="michaellax" data-source="post: 27167" data-attributes="member: 1678">So you lost 5 KWh from a 2013 Ford Focus.Do you think the technology is the same in 2017 as it was in 2010-2012 when it was developed for the 2013 Ford Focus; or do you think that maybe GM has used their experience with the Spark EV and the Chevy Volt to improve their battery conditioning technology?If I lose 5 KWh from a 64 KWh battery, I will have 59 KWh.  But I am sure you will say that you lost 25% of your capacity.But there is no evidence to support your theory that battery fade from "usage" is linear.  That is, I am sure you used the maximum capacity of your Ford Focus, i.e. 78 miles, much more often than a Bolt EV driver will use the maximum capacity of our 238 miles.You are comparing apples to oranges.Also you are ignoring two other factors:1)  Battery fade in a 78 mile capacity vehicle to 60 miles is much more dramatic than it will be to a Bolt EV with 238 miles; and2)  Even if we choose to replace our batteries, and why do that for mere fade (?), the cost of batteries keeps dropping.So, yes, I can chose to NOT drive my Bolt EV and have a pristine battery years from now.  The engine and the tires will also be in much better shape, too!Or I can get the bang out of my buck and use the vehicle for what I paid for: 238 mile range!</blockquote>