NIO (NYSE:NIO) is one of the hottest EV car companies in the world and a top 10 largest in the world (3rd largest in China).

The deal, with Norway’s Vianode, is for delivery of a material critical for electric-vehicle batteries, the companies said ...

However, most of us can't stay tethered to a wall outlet. Thankfully, you don't have to. The battery market is packed with options that can boost your phone's battery life no matter where you are.