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Battery durability has to do with the battery management system itself as much as it is about the chemistry. Consumer devices did and still do stop holding a usable charge because they batteries on portable devices are deep cycled 100%-0% (Or near zero) on a regular basis. This greatly reduces a battery's lifespan.

A properly managed car battery won't be kept at 100% charge level, and will definitely not be discharged down to 0%.

Car HV batteries are kept at 80-40% (Varies by chemistry) state of charge to prolong battery life. A Prius can go hundreds of thousands of miles on their original battery, and have been around for over 20 years.



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