What will the EcoFlow RIVER 3 run?
The EcoFlow RIVER 3 stores 245Wh with 300W of output. Running one thing at a time, that's not enough output for a refrigerator, about 6 to 13 hours of a CPAP with the humidifier off and about 6.5 to 9.5 hours of Wi-Fi.
EcoFlow's smallest current station: 245Wh on long-life LFP cells, for phones, lights, a router and a laptop.
One appliance at a time
| Running just this | Runs it for | Runs it? |
|---|---|---|
| Refrigerator | – | Noneeds 400W+ |
| Freezer (chest or upright) | – | Noneeds 400W+ |
| CPAP (blower only: humidifier and heated tube off) | 6 to 13 hours | Yes |
| CPAP with heated humidifier (and heated tube) | 2.5 to 6 hours | Yes |
| Home oxygen concentrator | about 0.5 hours | Checkcovers 275W, not 325W: check the label |
| Modem and Wi-Fi router | 6.5 to 9.5 hours | Yes |
| Laptop (plugged in, in use) | 2.5 to 4.5 hours | Yes |
| TV (32 to 65-inch LED) | 1.5 to 4.5 hours | Yes |
| LED light bulb (60W equivalent, each) | 9.5 to 11 hours | Yes |
| Gas furnace blower (1/3 to 1/2 HP) | – | Noneeds 450W+ |
| Window air conditioner (10,000 BTU) | – | Noneeds 625W+ |
| Microwave | – | Noneeds 600W+ |
| Coffee maker | – | Noneeds 750W+ |
| Electric space heater | – | Noneeds 500W+ |
| Sump pump (1/2 HP) | – | Noneeds 1,000W+ |
A few things together
| Running together | Runs them for | Runs it? |
|---|---|---|
| Refrigerator, Wi-Fi and four LED bulbs | – | Noneeds 440W+ |
| Refrigerator, freezer and Wi-Fi | – | Noneeds 810W+ |
| CPAP (humidifier off) and one LED bulb | 4.5 to 8.5 hours | Yes |
| Wi-Fi, a laptop and two LED bulbs | 1.5 to 3 hours | Yes |
Runtime: 245Wh × 90% usable × 85% inverter efficiency ÷ (the average draw + about 10W the station uses itself), from Energy Star figures and makers' manuals. "Runs it?" checks its output against the cautious running and starting figures on generator makers' and DTE Energy's charts. Plan on the low end. Your own list: the power station calculator.
Questions
Can the EcoFlow RIVER 3 run a refrigerator?
No. Its 300W output is below the 400W or more a refrigerator can draw on generator makers' charts.
How long will the EcoFlow RIVER 3 run a CPAP?
About 6 to 13 hours with the humidifier and heated tube off, or about 2.5 to 6 hours with them on, running nothing else. Running it from the 12V outlet through the CPAP maker's own converter avoids the inverter's losses, so it lasts longer than these figures.
Can the EcoFlow RIVER 3 run a space heater?
No: needs 500W+.