Runtime by power station size: Microwave (1,000 W cooking power)
| Power station size | Typical runtime | Realistic range |
|---|---|---|
| 300 Wh | 10 min | 0.1–0.2 h |
| 500 Wh | 17 min | 0.3–0.4 h |
| 1,000 Wh | 34 min | 0.5–0.7 h |
| 1,500 Wh | 51 min | 0.8–1.1 h |
| 2,000 Wh | 1 h 8 min | 1.0–1.4 h |
| 3,000 Wh | 1 h 42 min | 1.5–2.1 h |
Cooking power is not power draw
The wattage printed on the front of a microwave, or in its name, is how much microwave energy reaches the food. Turning electricity into microwaves wastes a lot as heat, so the oven pulls about 1.4–1.6× that from the wall. Check the label on the back or inside the door: it lists the input watts, which is the number that matters.
| Microwave (cooking power) | Typical draw | Station output needed |
|---|---|---|
| 700 W compact | about 1,000–1,100 W | 1,200 W+ |
| 1,000 W mid-size | about 1,400–1,600 W | 1,800 W+ |
| 1,200 W+ full-size | about 1,700–1,900 W | 2,200 W+ |
Output is the limit, not capacity
A microwave is the opposite of a fridge. A fridge uses little power for a long time; a microwave uses a lot of power for a few minutes. That means the station's continuous output rating decides whether it works at all. Plug a 1,500 W microwave into a 1,000 W station and it shuts off the moment you press start, however full the battery is.
Once output is covered, the energy is modest. Reheating a meal for 3 minutes at 1,500 W uses 75 Wh. Even a small 1,000 Wh station handles several meals a day and still runs the fridge.
Lower power settings don't help most microwaves
On a standard microwave, "50% power" means the magnetron runs at full power half the time, switching on and off. The station still has to supply the full draw during the on phases, so a lower setting does not let a smaller station run it. Inverter microwaves genuinely reduce their power at lower settings, but their startup and full-power draw still needs the same output.
Stations that can run a typical microwave
Look for 1,800 W or more of continuous output: for example the EcoFlow Delta 3, Jackery Explorer 1500 v2 or Anker SOLIX C1000 Gen 2. Compare all of them on the power stations page, or check your exact appliances with the inverter size calculator.
Don't run the microwave at the same time as other big loads like a kettle or coffee maker: their watts add up.