One of the Most Efficient Power Stations We’ve Tested Is $350 Off for Prime Big Deal Days

2 min readAmazon Prime Day is offering deep discounts on power stations at all levels, with some of the year’s lowest prices.The Anker S2000 delivers an impressive amount of runtime, sometimes a third more than that of similarly sized stations.A combination of inverter efficiency and battery capacity enables it to run longer than competing stations.Compact power stations sometimes don’t offer long runtime, but Anker’s Solix S2000 turns that on its head. When we tested this portable unit a few months ago, we found it was able to run a full-size refrigerator for a whopping 24 hours—similarly sized stations can only offer half of that runtime. And for Amazon’s Prime Big Deal Days, you can get it for $350 off, and it includes a free power strip with your purchase.Despite its smaller size (around the size of a desktop PC tower and a weight of 35 pounds), the S2000 packs a lot. It offers up to 1,500 watts of continuous power and a battery capacity of 2,010 watt-hours. Stations that offer these specs are often a third or more larger in physical size. When we tested it, it ran very quietly and was able to meet the full demand of its full output potential—some stations will shut down if you get too close to the maximum limit for too long. It’s an excellent power station to have on hand during a blackout, or as an uninterruptible power supply (UPS) for a computer setup.ProsDelivered noticeably longer runtime in testingVery compact design for the amount of capacity it offersFunctions as a 10-millisecond UPSCons1,500 watts won’t run all high-powered small appliances (e.g., a four-slice toaster)Only one high-powered USB-C portKey SpecsOutput1,500 W (3,000 W surge)Capacity2,010 WhOutlets5 x 120 V AC; 1 x 100 W USB-C; 1 x 15 W USB-C; 1 x 15 W USB-AWeight35.7 PoundsHow Does It Achieve This Efficiency?Simply put, the S2000’s inverter recognizes the type of device that is plugged in and how it is powered—whether the appliance draws constant power, like a wireless router, or variable, like a fridge. It then adjusts the inverter's frequency to match the type of demand. This, in theory, helps reduce the amount of wasted power and improves the overall efficiency of that station.For example, in the case of a refrigerator, it may draw 300 watts for just 15 minutes every hour while idling the rest of the time. A normal power station may stand ready to deliver the full amount of power that is needed, but the S2000 will rest the system during the downtimes. This kind of adjustment may seem minor, but in the long run it reduces the amount of wasted power and keeps the battery running longer, sometimes by several hours.Plus, it’s quite versatile in terms of outlets. It offers five AC outlets (two are conveniently in the back), as well as several USB ports for charging mobile devices. And you can recharge it from an AC outlet or from a portable solar panel.Shop the Anker Solix S2000 HereOther Editor-Recommended Anker Power Stations on SaleDavid is a Reviews Editor for Hearst’s Enthusiast Group, contributing to Popular Mechanics, Runner’s World, Bicycling, Best Products, and Biography. He has over 25 years of experience writing about and reviewing consumer electronics, kitchen appliances, DIY products, outdoor gear, and more. He also spent years covering the ever-changing world of online retail. To relax, he loves experimenting with new recipes, tweaking his smart home setup, and spending time outdoors on his bike or camping.