The hidden metric that makes these portable power stations truly worth your money - ZDNET

Our gifting experts are obsessively searching for holiday gifts that are unique, thoughtful and suitable for any budget. ZDNET's latest Lab Awards crown the best portable power stations that deliver electricity most efficiently. Follow ZDNET: Add us as a preferred source on Google. The best portable power stations aren’t exactly always portable, with sizes ranging from 15 pounds to 100 pounds. Still, these relatively compact devices can provide a lot of power. Whether you’re going off-grid, need power during an outage, or are simply camping for the weekend, portable power stations are essential for keeping devices and appliances powered and ready to go. We ran dozens of portable power stations through the gauntlet in our lab in Kentucky, evaluating how much power each station can provide relative to how much it draws to charge, to determine its overall efficiency. Also: The best portable power stations for camping The portable power stations that stood out above the rest were the Bluetti AC240 for large-size power stations (devices with 1,100-2,100Wh), and the Oupes Mega 1 for small portable power stations (devices with 600-1,100 Wh). We chose to separate these awards and power sta