Capacity
What can a 3,000 Wh power station run?
A 3,000 Wh power station gives about 2,550 Wh from its outlets: an average US fridge for about 36.2 h, a CPAP with humidifier for about 14.5 nights, or a modem and router for about 9.7 days.
| Device | Draw | Hours, one at a time |
|---|---|---|
| Modem + router (NRDC) | 11 W | 9.7 days |
| LED bulb (Philips) | 8.5 W | 12.5 days |
| CPAP, humidifier on (ResMed) | 22 W | 4.8 days |
| Laptop (Penn State) | 50 W | 2.1 days |
| Electric blanket, double (Penn State) | 100 W | 25.5 h |
| Fridge, US average (EIA) | 70.4 W | 36.2 h |
| Starlink Standard (Starlink) | 100 W | 25.5 h |
| Microwave drawing 1,100 W (Penn State) | 1,100 W | 2.3 h |
3,000 Wh × 0.85 ÷ watts.
Running several at once? Add the watts, or use the calculator.
Stations about this size
ALLPOWERS R4000
41.7 h average fridge
3,456 Wh
ALLPOWERS price, Oct 23
Check price at ALLPOWERS for the ALLPOWERS R4000Paid linkJackery HomePower 3000
37.1 h average fridge
3,072 Wh
Jackery price, Oct 23
See it at Jackery for the Jackery HomePower 3000BLUETTI Apex 300
26 h average fridge
2,765 Wh
BLUETTI price, Oct 23
Check price at BLUETTI for the BLUETTI Apex 300Paid link
Average US fridge (70.4 W). Unlike the table above, these include each station’s own draw where the maker lists it, which is why same-size stations differ; stations whose makers list none likely run shorter. Maker prices, Oct 23, 2026, unless dated. Checkout price applies. Photos: the makers. Cards marked “Illustration” use our own drawing where we have no photo.
Quick answers
How long will a 3,000 Wh power station run a fridge?
About 36.2 h for an average US fridge (70.4 W): 3,000 × 0.85 ÷ 70.4.
Can a 3,000 Wh power station run a microwave?
Only if its output is above the microwave’s draw, and then for about 2.3 h at 1,100 W.
“Paid link” = we earn a commission. Same math either way. See how we make money.