To help you decide, I tested the efficiency, in a variety of scenarios, of the best portable power stations from Jackery, Oupes, EcoFlow, Anker, Goal Zero, Grecell, Bluetti, Dakota Lithium, Lion Energy, Vtoman, and Oupes. ↓ Jump to the Rest of the Field. Portable power stations can deliver power when you need it most, whether during power outages or just for an off-grid adventure. These handy electricity suppliers vary in size, output, and energy source, not to mention durability. That's why we've tested 22 models since 2022; some we've kept on. . Whether you're prepping for emergencies, working remotely off-grid, or enjoying nature on a weekend camping trip, the best portable power stations provide reliable energy when you need it most. These compact generators offer eco-friendly, silent alternatives to traditional gas-powered units, and. . Portable power stations are more powerful and cost effective than ever before. And, thanks to advances in lithium-ion battery technology, they're also lighter and more compact. They provide a compelling alternative to a loud and smelly generator. And, unlike gas-generators, power stations don't emit potentially lethal carbon monoxide fumes. When outfitted with optional solar panels. . Small power bricks have enough juice to charge your phone a few times, while a cooler-sized portable power station can keep vital electronics running during a power outage or camping trip, and the most powerful options will provide electricity to your entire house.