Power banks are an incredible invention. They make it so we can keep our devices running for substantially longer than their built-in batteries. They’re not without flaws, though. Part of the reason a device like a smartphone is so useful is that it’s easy to carry around. It fits right into your pocket . Most power banks, however, aren’t so portable. Portal Cord is setting out to solve that problem by tucking the power bank right inside of the cord. Portal Cord Features The way the Portal Cord is able to contain the power within the cord is by having multiple batteries lining the length of the device. While a traditional power bank features one large battery, this one uses a bunch of smaller ones. Obviously, even by having multiple batteries along the cable, there’s just no way to fit a huge amount of juice. As such, the Portal Cord features 1,800 mAh of charging power. To put that into perspective, an iPhone XS Max features a 3,174 mAh battery, while a Pixel 3 features a 2900 m...