>Overprovisioning the battery is silly, and would deservedly cause a much bigger controversy if it were discovered. Really? Would there be a strong negative re

>Overprovisioning the battery is silly, and would deservedly cause a much bigger controversy if it were discovered. Really? Would there be a strong negative reaction if Apple said "we've designed the iPhone 9 to give you all-day battery life for four years"? Would customers be angry that their device was built to last longer and perform better? To my mind, it's a marketable feature. All battery management is a trade-off between capacity and durability. Manufacturers have an obvious commercial incentive to sacrifice durability - you get a thinner device with longer initial battery life. Purchasing habits are starting to change in the mobile market. Pricing is moving away from an all-inclusive line rental price to separate usage charges and device payments. As the market matures, customers are holding onto their devices for longer. I think it's inevitable that manufacturers will have to improve durability as we move away from the lock-step of 24 month contracts.