EcoFlow Trail 300 DC ZDNET's key takeaways The EcoFlow Trail 300 DC retails for $249 but is on sale for $139. This compact portable battery can power electronic devices such as laptops, smartphones, tablets, and more. It doesn't have any extra features (there's no light), and there are only five DC ports. View now at Amazon Follow ZDNET: Add us as a preferred source on Google. My kids ooh and ahh over portable batteries. They're young, ranging from four to nine, so they're not EcoFlow's or Anker Solix's target audience, yet their eyes light up whenever I unbox a new portable battery to test for work. Why? They love to use them to charge their tablets wherever they are. Also: We grabbed the 100+ best deals for Prime Day 2: Last chance on discounts up to 56% off on TVs, Kindles, & more Thus far, they've loved the EcoFlow Trail 300 DC so much that they've been fighting me over it. This battery is light enough for even my younger kids to carry everywhere without fear of dropping it or bumping it against their legs, yet it can charge all three of their tablets several times on a single charge. And I get it: I've used the EcoFlow Trail 300 DC to recharge my iPhone, iPad, and MacBook twice on a single charge, and still had about 17% of the battery left. My favorite thing about the Trail 300 DC is its compact and lightweight design. EcoFlow achieved this by bypassing the battery's AC mechanism and making it a DC-only option. Maria Diaz/ZDNET AC batteries have long been my preferred option to carry along, so the EcoFlow River 3 has been my go-to since its launch last year. I've tried other DC-only portable batteries, like the Anker Solix C300X, but the Trail 300 won me over by being lighter and more compact than the Anker Solix option. Also: Best Amazon Prime Day EcoFlow deals in October 2025: I found discounts up to 51% off I've used this little battery around my house and outside. I love that I can carry it around, take it to the car, and back without feeling like I'm lugging around a portable battery. Due to its lightness, the Trail 300 DC makes an ideal travel companion. At under six pounds, it is easy to take on your carry-on or even in a backpack. If you enjoy active camping trips, this portable battery can go in your backpack to keep your devices charged without weighing you down or taking up too much space. Maria Diaz/ZDNET This 90,000mAh battery can deliver up to 140W per port, with a total output of 300W, making it sufficiently powerful to charge laptops and other large devices, such as electric coolers or projectors. It recharges pretty quickly, too, so you can go from 0 to 100% in just about two hours. If you take it out with you, you can recharge it through USB, solar panels, or a car. Also: The robot vacuum that beat all others against pet hair is 35% off right now ZDNET's buying advice The EcoFlow Trail 300 DC is one of the best value-for-money options available in a portable battery. It's perfect for camping and small enough to slip into a backpack when you leave your tent. It can also quickly recharge devices during long car rides, in emergency situations, or, as my kids would say, when you're on the couch with a dead tablet and are too far from an outlet. One of the best features of this portable battery is its affordable price of $160 (at the time of writing). Such a good price gives competitors a run for their money, though you may have to compromise on some features to get such a good price. While the EcoFlow Trail 300 DC is lightweight and compact, it lacks extra features, such as a light, and has only five DC ports: two USB-C, two USB-A, and one 12V car port. The Anker Solix C300X, for example, has twice as many USB-C ports. When will this deal expire? This deal appears to be a part of the Amazon Prime Big Deal Days, also known as October Prime Day, so I'd expect it to expire when the end of the event rolls around on Oct. 8. While many sales events feature deals for a specific length of time, these deals are often limited-time offers, making them subject to expiration at any moment. ZDNET remains committed to finding, sharing, and updating the best offers to help you maximize your savings so you can feel as confident in your purchases as we are in our recommendations. Our ZDNET team of experts constantly monitors the deals we feature to keep our stories up-to-date. If you missed out on this deal, don't worry -- we're continually sourcing new savings opportunities at ZDNET.com. Show more