If you’re going off the grid or prepping for an emergency, the power station can keep your electronic gear running for hours-or even days-at a time. It’s roughly the same size and weight as a small microwave, and it provides a steady stream of power without the noise or exhaust of a gas-powered portable generator. After 73 hours spent testing 16 portable power stations, we found that the power station impressive max output, wide array of ports, easy-to-use interface, and rugged exterior helped it stand out from the competition.