When Popular Mechanics editors test EcoFlow power stations, we really put them through their paces. Reviews Editor Amber Joglar hauled the Delta 3 Plus to a five-day off-grid camping music festival, using it to power everything from air pumps to fans to power banks. Meanwhile, Test Editor Bradley Ford installed the Delta Pro Ultra X and Smart Home Panel 3 in his home and experienced two real outages, and both times the automated system switched to backup power so seamlessly that his internet never dropped.

While we haven’t tested every model in this list, we feel confident recommending the best options for your needs based on our experience with the brand and overall product category.

Best EcoFlow Portable Power Stations

• Best Overall:EcoFlow Delta 3 Plus​
• Best Budget: EcoFlow River 2 Max​
• Best for Camping:EcoFlow Delta 3 Max​
• Best for Home Backup: EcoFlow Delta Pro 3​
• Best for Everyday Use: EcoFlow River 3​

EcoFlow’s newer models use lithium iron phosphate (LiFePO4) batteries rated for 3,000-plus charge cycles, which means roughly a decade of regular use before capacity drops meaningfully. The brand’s app is the most intuitive we’ve tested, and X-Boost technology lets smaller units run appliances above their rated wattage by managing the inverter output. Add some of the fastest charging speeds in the category, and it’s clear why we’ve been relying on EcoFlow power stations in emergencies.

The current lineup spans everything from the lightweight River series to the aforementioned Delta Pro Ultra X, a whole-home system capable of backing up 32 circuits. Here are the models worth your money.

We put the Delta 3 Plus through a demanding five-day off-grid camping music festival with no outlets, unpredictable weather, and a constant stream of gadgets needing power. It ran air pumps, fans, phones, and power banks through the entire trip without running out of juice.

That kind of endurance comes from a 1,024-watt-hour LiFePO4 battery, which delivers 1,800 watts of continuous output (3,600-watt surge). EcoFlow’s X-Boost extends that to 2,600 watts for appliances that would otherwise exceed the inverter’s rated limit, though the unit achieves this by reducing the voltage rather than truly increasing output, so you should not use this mode when powering sensitive digital electronics at the same time. Six AC outlets let you run multiple devices at once without a power strip.

The Delta 3 Plus is also expandable. Compatible extra batteries can push capacity up to 5 kilowatt-hours, and a 10-millisecond uninterruptible power supply (UPS) switchover keeps computers and medical equipment online during an outage. The EcoFlow app adds storm alerts, time-of-use scheduling, and real-time monitoring. At less than 30 pounds, it provides a great balance of power and portability.

EcoFlow Delta 3 Plus Review

The River 2 Max is by no means the biggest power station EcoFlow makes, but for weekend trips and light home backup, it punches well above its weight class. It crams a 499-watt-hour LiFePO4 battery into a 13.4-pound frame, making it one of the easiest units to grab and go. It’s a great size for tossing in a trunk on the way to a campsite or stashing it next to the router for outages. It charges from zero to full in about an hour on a wall outlet, and the battery is rated for 3,000 cycles (roughly a decade of regular use before capacity dips).

The 500-watt continuous output handles portable fridges, fans, and device charging, and X-Boost bumps that to 1,000 watts when you need to run something beefier. You also get four charging options (AC, car, solar, and USB-C), so you’re covered whether you’re stopped at a roadside motel or miles from an outlet.

EcoFlow’s app provides Bluetooth and Wi-Fi monitoring, and a sub-30-millisecond UPS switchover keeps routers online when the power goes down.

The Delta 3 Max is the unit you want for week-long camping trips. Its 2,048-watt-hour LiFePO4 battery holds enough juice to run a few comforts from home while you’re enjoying nature. And if you pair it with a 400-watt solar panel, you can get some extra charge before needing to find an outlet. At 44.8 pounds, it’s not the easiest to carry, but handles on both sides make it manageable for two people to lift it in and out of a vehicle.

The 2,400-watt continuous output (3,400 surge) means you can run real appliances, like a coffee maker, to kickstart your pre-dawn hike. On the port side, you get four AC outlets, one USB-A port, three USB-C ports, and a car outlet. EcoFlow’s app lets you monitor charge levels and set schedules from your phone, and the unit is whisper-quiet and doesn’t produce any harmful fumes like gas-powered generators, so you can use it inside your tent. A sub-10-millisecond UPS switchover also makes it a solid pick for computer home backup between trips, keeping a NAS online through an outage.

Our best overall pick, the Delta 3 Plus, is lighter, has more outlets, and costs less; however, it offers half the capacity, so you’ll need to recharge it more frequently, which can be a headache when you’re outdoors and away from an outlet.

The Delta 3 Pro earned a spot in our portable power station roundup as our best whole-home backup pick—and our testing backed that up. It was the most efficient power station we evaluated, outputting 97 percent of its listed 4,096-watt-hour capacity, and we were able to run a space heater pulling a consistent 1,300 watts for nearly six hours.

EcoFlow’s power station produces 4,000 watts of continuous output (6,000 surge), and we pushed it well above 5,000 watts while simultaneously running an air fryer, toaster, space heater, and making intermittent cuts with a miter saw. It’s expandable to 48 kilowatt-hours with additional battery packs, and a second unit can be paired in parallel for up to 12 kilowatts of combined output. A 120-volt 30-amp RV outlet, two 240-volt outlets, and four USB ports round out the connection options.

At 113 pounds, calling it portable is a stretch, but its wheels and extendable handle make it manageable indoors.

The River 3 is a great power station for everyday power needs. At 7.8 pounds with a built-in handle, it’s small enough to sit on a desk or slide under a nightstand. And since it’s so lightweight, it’s easy to grab and go without a second thought. Its IP54-rated enclosure handles dust and light splashes, so it holds up whether you’re using it indoors or out.

What really differentiates the River 3 is EcoFlow’s X-GaNPower design, which uses GaN-based power electronics that waste less energy as heat when converting the battery’s stored power into usable AC. The practical benefit is more runtime from the same battery capacity compared to similarly sized power stations, especially with small, always-on devices like a Wi-Fi router or a CPAP.

The higher efficiency also means the River 3 doesn’t get as hot, allowing for a quieter, more compact design. On the recharging front, you can replenish the battery in about an hour from a wall outlet. Like other power stations equipped with a LiFePO4 battery, the River 3 is rated for 3,000-plus cycles. The 300-watt continuous output isn’t anywhere near enough to run a space heater or a microwave, but for keeping your daily essentials powered, the River 3 is a great option.

The original EcoFlow Delta Pro may no longer be EcoFlow's flagship, but it’s still a serious power station. With a 3,600-watt output—expandable to 4,500 watts via X-Boost—it can handle nearly any appliance you throw at it.

In testing, we ran it under a continuous 470-watt load for 6 hours and 57 minutes. For a more practical backup scenario, we used it to power a full-size, 25-cubic-foot refrigerator for a remarkable 51 hours and 24 minutes. It recharged from empty to full in 2 hours and 36 minutes from a standard wall outlet, and can also charge via EV stations, solar panels, or a car charger.

We also tested the Delta Pro as part of EcoFlow’s Whole Home Kit—two units connected to a home’s service panel via a transfer switch—which powered kitchen outlets, a full-size refrigerator, a chest freezer, a cable modem, a wireless network, and a hot water boiler for just over 24 hours. We also found the unit held a full charge over eight months of storage.