Anker Nano II 65W ($60)
A good day can turn sour real quick if your phone or laptop runs out of juice, which is why I like to keep a compact power adapter in my bags at all times. Anker’s 65-watt Nano II power brick is smaller than a pack of playing cards but can supply enough juice to charge most 15-inch laptops (aside from huge gaming laptops, of course) that support charging over USB-PD. That also means you’ll be able to top off smaller devices like phones, cameras, or even a Nintendo Switch with ease. Honestly, between its size and its relatively affordable price (a 67-watt power brick from Apple costs about the same and is more than twice the size), the Anker Nano II might be the useful gadget in your bag.
