How long will a power station run a Wi-Fi router?
A router and modem together draw about 15 W, so even a small station keeps the internet up for a long time. Whether you have internet depends on your provider too: cable and fiber equipment in your street usually has its own backup battery, but only for hours, not days.
Router and modem (15 W)
| Station | Runtime |
|---|---|
| 500 Wh | 1.2 days |
| 1,000 Wh | 2.4 days |
| 1,500 Wh | 3.5 days |
| 2,000 Wh | 4.7 days |
| 3,000 Wh | 7.1 days |
Router, modem and a laptop
Adding a laptop working 4 hours a day raises daily use from 360 to 600 Wh. A 1000 Wh station then lasts 1.4 days.
The DC trick
Most routers and modems run on 12 V from a wall adapter. Powering them from the station’s 12 V DC port with a matching cable skips the inverter and can stretch runtime by 10 to 15%. Check the voltage and plug size on your adapter first.
See 300 Wh power stations on Amazon
Figures assume 85% efficiency on AC and typical draws. The label on your appliance, or a plug-in power meter, gives the exact number; enter it in the calculator.