Seeing the 'Low Battery' alert on your smartphone is enough to send anyone into a frenzy¹. But a group of researchers have developed a solution that not only lets you power your own device, but allows you to share your charge with others in need - without using a power pack. 

 

手机显示电量不足时我们就会莫名感到焦虑。一组研究人员已经找到了解决办法，不仅可以让你自己给自己的设备充电，还可以在没有电源组的情况下将自己的电量分享给需要的人。

 

Called PowerShare, this technology consists of flexible coils and docking aids embedded² in a smartphone or smartwatch to transfer power to devices just by touching³ them together. 

 

There are a number of products on the market that provide Wireless⁴ Power Transfer (WPT) for smartphone users that power their phones without the need of an outlet⁵. Although power packs and mobile hand generators⁶ are good back-ups, they can be bulky and a nuisance when traveling. 

 

Once the technology is placed inside a smartwatch or smartphone, simply tap it with another device and watch it charge.

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