The battery pack in the Nissan Leaf failed to impress in the hottest of climates, like the US states of Arizona and Texas, where owners reported significant capacity losses. Truth is, though, the batteries are going to eventually fade out anyway - it’s what batteries do, and while the process can be slowed down (by keeping them at their ideal temperature), it cannot be stopped.
Nissan is fully aware of this, and has announced a program to swap out used batteries for new ones, specifically for the brand’s US customers. Set to commence in the first half of 2014, it will come to compliment the warranty already in place for the power storage unit (five years or 60,000 miles for capacity loss and eight years and 100,000 miles for defects).
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