One of the smallest power stations we've tested charges incredibly fast - and it's $120 off

Follow ZDNET: Add us as a preferred source on Google.At ZDNET, we're all about putting tech to the test to actually see which phone has the best battery life or which robot vacuum has the best pickup performance. And when we tested 10 different portable power stations in our lab, one was the clear winner for the small-sized category: the . This model was the most efficient for small portable power stations (devices with 600-1,100 Wh). And right now, it's $120 off for Amazon's Prime Day sale this week. Also: June Prime Day live blog 2026: We're tracking Amazon deals on SSDs, TVs, laptops and more In our lab testing, the power stations with higher watt-hours per time charged were the top performers. The Oupes Mega 1 took only 21 minutes to charge to 100% in its group, while still retaining 1024 watts per hour. It beat other small-sized power stations from brands like Anker, EcoFlow, and Bluetti. Aside from its efficiency, the Oupes Mega 1 offers a range of power outputs, including a bank of four AC outlets, USB-C and USB-A ports (100W and 18W maximum, respectively), a 12V car outlet, and two DC5521 ports.Also: We tested 10 portable power stations in our lab - these two models were the most efficientPlus, it weighs just under 30 pounds, making it compact and portable enough for travel, camping, etc. I recommend this portable power station if you want efficient energy performance that will keep all kinds of devices charged up. And with this deal, there's an even better reason to buy the . How I rated this deal According to our ZDNET deal-rating system, this 22% off deal is a 3/5 deal. You get $120 off one of the best-performing small portable power stations on the market, so I think it's a deal worth snagging.