EcoFlow RIVER 2 Max review

What is the EcoFlow RIVER 2 Max?

The EcoFlow RIVER 2 Max is a 512Wh portable power station with 500W of continuous AC output (1,000W surge). It weighs 13.3 lb and takes up to 220W of solar. You can expect to draw about 435Wh from it, which is roughly 8 hours for a 12V fridge averaging 50W.

Where the RIVER 2 Max fits now

It’s the step where a small 12V fridge starts to make sense. At 512Wh you’ve got roughly a night for a cooler that averages 40–60W, depending on how warm it gets and how often you open the lid. By our math that’s about 8 hours at 50W.

At 13.3 lb it’s still a one-trip carry from the car, which is the main reason you’d want this size over a 1kWh box. You keep the fridge running without lugging something twice the weight.

Worth knowing: the amazon.com listing has gone, so the links above point you to the closest stations you can still buy. It’s still a handy guide to what the 500Wh size can do for you.

What do the EcoFlow RIVER 2 Max specs mean?

Capacity is 512 Wh. A small compressor fridge that averages 30–40W can last you a night at this size. A full-size kitchen fridge is too much for it.

It’s rated 500 W continuous, which is the most you can run at once. Surge is listed at 1,000 W, with a boost figure of 1,000 W, and that headroom is what gets a fridge compressor started.

It weighs 13.3 lb (6.0 kg). You’ll want two hands to carry it from the car. It takes up to 220 W of solar, though the wall is usually the quicker way to fill it.

Runtime claims on the box assume a light load, so we’d go by your own watts. How we compare.

How long will the EcoFlow RIVER 2 Max run a fridge, CPAP or TV?

Here’s our math for one appliance at a time, using about 435Wh of usable energy. Check the watts on your own label, because yours may differ.

Who is the EcoFlow RIVER 2 Max for?

We’d point you to the EcoFlow RIVER 2 Max for car camping and home backup.

What outlets does the EcoFlow RIVER 2 Max have?

AC outlets, USB-C, USB-A, 12V car port.

Inverter: pure sine wave. Chemistry: LiFePO4.

Step down and step up

• Smaller class: Jackery Explorer 300 — 292 Wh, 300 W, 7.5 lb
• Larger class: Anker SOLIX C1000 Gen 2 — 1,024 Wh, 2,000 W, 24.9 lb

Common questions

How long will the EcoFlow RIVER 2 Max run a 12V fridge?

About 8 hours if your fridge averages 50W, which is typical for a 12V compressor fridge. You can draw about 435Wh from it (512Wh times 0.85), so a 40W fridge gets about 10 hours and a 60W one about 7. Hot days and an often-opened lid will shorten that.

Can the EcoFlow RIVER 2 Max run a coffee maker or microwave?

A drip coffee maker is often 800–1,200W. A microwave is often 1,000–1,200W at the wall. The EcoFlow RIVER 2 Max is rated 500W continuous. So we’d leave both at home.

How fast does the EcoFlow RIVER 2 Max recharge from solar?

About 2.3 hours at best: 512Wh divided by its 220W solar limit. Real panels give you less than their rating once heat, cloud and a low sun come into it, so we’d plan on longer.

How heavy is the EcoFlow RIVER 2 Max?

The EcoFlow RIVER 2 Max weighs 13.3 lb. You’ll want two hands to carry it from the car.

Can the EcoFlow RIVER 2 Max run a refrigerator during a power outage?

Only briefly. A kitchen fridge averages roughly 100–200W, so the EcoFlow RIVER 2 Max’s 512Wh would last about 2 hours at 150W. We’d size up to 1,000Wh or more if keeping your fridge cold is the main job.

Is the EcoFlow RIVER 2 Max good for camping?

For car camping, yes. At 13.3 lb it’s a two-hand carry, and 512Wh is enough to run a 12V fridge for about 8 hours.