Amazon Kindles can already last for weeks on a single charge, but the upcoming "top-of-the-line" model could last even longer than that. According to The Wall Street Journal, it will come with a rechargeable protective casing for extra juice. The publication says this case allows it to be slimmer than its predecessors, which could mean that the device alone will have a battery life shorter or similar to older models. Amazon is reportedly working on a solar-powered casing, as well, though that one won't be ready in time for the new e-reader's launch next week.
据《华尔街日报》网站报道，亚马逊公司将在下周发布新款Kindle电子书阅读器。消息人士称，这款新产品将配有两套外壳，其中之一可使用太阳能充电。消 息人士称，亚马逊将要发布的新Kindle属于高端产品，其中一种外壳支持反复充电，可以支持更长的使用时间。因为这个保护套可以移除，所以新款 Kindle比老款更薄。
WSJ: Next Amazon Kindle comes with rechargeable cases
The company is also reportedly developing a solar-powered case.
Apparently, the tech behemoth has been having a hard time selling its newer Kindles, since the devices are pretty durable. People won't buy a new model that's not markedly different from their own if their device is still working perfectly, after all. Amazon is likely hoping that bundling its next e-reader with a rechargeable case will help compel potential buyers to take the plunge.
The upcoming Kindle and its protective casing were designed by the engineers at the tech behemoth's not-so-secret hardware facility, Lab 126. They gave them the codenames "Whiskey" and "Soda" and have taken to calling the solar casing "Sunkiss." Amazon formed Lab 126 years ago to conjure up the first version of its e-reader. It has developed a wide array of products since then, including the Echo speakers, the Fire phone, tabletand TV, as well as the company's quirky Dash buttons.