Do you need one?
Experts are clear: for a normal outage, a power bank for your phone and a battery radio are enough. A power station makes sense if:
- Someone at home depends on powered medical equipment: an oxygen concentrator, a CPAP machine or an insulin fridge. This is the clearest case.
- You live in an area with frequent or long outages.
- You work from home and need to keep your router and laptop running.
- You want to keep your fridge going for a while during a long outage.
How to calculate capacity
Capacity is measured in watt-hours (Wh). Expect to use about 85% of the rated capacity, because energy is lost converting the current.
| Device | Approx. consumption | With 1,000 usable Wh |
|---|---|---|
| One phone charge | ≈ 15 Wh | ≈ 60 charges |
| Wi-Fi router | ≈ 10 W | ≈ 4 days |
| Laptop | ≈ 50 W | ≈ 20 hours |
| Household fridge | ≈ 1–1.5 kWh per day | ≈ 1 day |
| CPAP without humidifier | ≈ 30–60 W | Several nights |
Also check the output power in watts (W): it must exceed that of the most demanding device you'll plug in. For fridges and other motor-driven appliances, leave a margin for the startup surge.
What to look for
- LiFePO4 battery (lithium iron phosphate): safer and rated for thousands of charge cycles, versus a few hundred for conventional lithium.
- Pure sine wave output, needed for sensitive electronics.
- Your country's outlets: 120 V in the US and much of the Americas, 230 V in Europe. Buy the version for your region.
- UPS function if you want it to kick in automatically when the power goes out. Check the switchover time: desktop computers need it to be very fast.
Two balanced options
EcoFlow River 3: compact
About 250 Wh. For phones, router, lights and a laptop. Fits in a backpack.
Anker SOLIX C1000: for the home
About 1,000 Wh with LiFePO4 chemistry. Enough to keep a fridge running for a day or small medical devices for several nights.
Foldable solar panel
Lets you recharge the station during a long outage. A 100 W panel in good sun produces roughly 300 to 500 Wh per day.
Safety and maintenance
- Store it at around half charge if you won't use it for months, and top it up every three months.
- Don't open it: it voids the warranty and there's a risk of shock and fire.
- Unlike a fuel generator, it produces no fumes, so it's safe to use indoors.
Some links on this page are affiliate links: if you buy through them, BESTPREP earns a small commission at no extra cost to you. As an Amazon Associate we earn from qualifying purchases. We only recommend what we would recommend anyway.