How Long Will the EcoFlow River 2 Max Run a Heated Mattress Pad?
Updated 2026-10-17 · Yes
The numbers
| Battery capacity | 512Wh (LFP) |
|---|---|
| Usable energy | 435Wh (85% via AC outlets) |
| Continuous AC output | 500W |
| Surge rating | 1000W |
| Heated mattress pad running watts | 90W |
| Startup watts | 90W |
| Average draw | 54W |
| Estimated runtime | 8.1 hours |
| Energy per day of typical use | 432Wh |
512Wh × 0.85 = 435Wh usable ÷ 54W average = 8.1 hours
Station specs: source, checked 2026-10-17. See how we calculate runtime.
Adjust the numbers
Check the label on your heated mattress pad and enter its real wattage.
Recharging with solar
The EcoFlow River 2 Max accepts up to 220W of solar input. In real conditions that harvests about 825Wh on a sunny day (5 peak-sun hours), or about 750Wh with one 200W panel.
Solar can keep up. A heated mattress pad uses about 432Wh a day at 8 hours of use, so with enough panels and good sun the EcoFlow River 2 Max can run it indefinitely.
Tips
- Queen-size heated pads draw about 90W and cycle once warm.
- You’ll still have about 410W of AC capacity left for other devices at the same time, though they’ll share the same battery.
- The EcoFlow River 2 Max uses LiFePO4 (LFP) cells, rated for thousands of cycles, so running it down daily won’t wear it out quickly.
Other power stations running a heated mattress pad
| Power station | Capacity | Output | Runtime | Verdict |
|---|---|---|---|---|
| Jackery Explorer 300 Plus | 288Wh | 300W | 4.5 hours | Yes |
| Goal Zero Yeti 500X | 505Wh | 300W | 7.9 hours | Yes |
| Anker 535 PowerHouse | 512Wh | 500W | 8.1 hours | Yes |
| DJI Power 500 | 512Wh | 1000W | 8.1 hours | Yes |
| Jackery Explorer 500 | 518Wh | 500W | 8.2 hours | Yes |
| EcoFlow River 2 Pro | 768Wh | 800W | 12 hours | Yes |
| Anker SOLIX C800 Plus | 768Wh | 1200W | 12 hours | Yes |
| Bluetti AC70 | 768Wh | 1000W | 12 hours | Yes |
FAQ
Will the EcoFlow River 2 Max run a heated mattress pad overnight?
Yes. Eight hours uses about 432Wh, roughly 99% of the EcoFlow River 2 Max’s usable capacity.
How long does the EcoFlow River 2 Max take to recharge with solar?
With its maximum 220W of solar input it refills in about 3.1 hours of strong sun. With a single 200W panel, expect about 3.4 hours of full sun.