All of the following models make great picks for an emergency power station—in case the power goes out — or portable energy supply. 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. This unit offers lots of power in a portable, durable, easy-to-use package. The EcoFlow River 2 Pro is light enough for the average adult to lift and carry safely, yet in our tests it managed to. We tested out over 40 compact power stations to find out which ones will keep the lights on during blackouts even when you're off the grid When you purchase through links on our site, we may earn an affiliate commission. EcoFlow Delta 3 Plus Best on a budget 2. Stay powered on the go with the best portable power stations out there -- tried and tested by CNET's experts. Article updated on December 5, 2025 at 2:24 PM PST Sq. Feet of Lab Space CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you've got backup power, though, you're in a much.