Every “best power station” list I’ve read skips the most important question: best for what? A unit that’s perfect for keeping the router and a CPAP alive is useless if you need the fridge and a sump pump through a storm. So instead of a ranking, this guide groups the main options by what they can realistically run.
Start with your own number. Add your essentials to the power station size calculator, then find the size class below that matches.
What to look at for home backup
- Capacity (Wh) decides how long things run. Home backup usually starts around 1,000 Wh.
- Continuous output (W) decides what can run at all. With 1,800 W or more you can use a microwave, a coffee maker or a window AC.
- Surge matters for anything with a motor, like fridges, freezers and pumps.
- Battery chemistry: LiFePO4 is rated for 3,000+ cycles and is the safer choice. More on that in LiFePO4 vs. NMC.
- Recharging: fast wall charging (about 1–2 hours) and a high solar input.
- UPS or pass-through mode, so the router and CPAP stay on when the grid drops.
- Expandability, so you can add a battery later instead of buying a second unit.
Around 1,000 Wh: the starter size
This class will run a fridge for roughly half a day to a full day, or the router, lights, phones and a laptop for one to two days, or a CPAP for several nights. The units weigh 23–35 lb and most put out 1,500–1,800 W, enough for a microwave or coffee maker in short bursts.
The differences between the popular models are small but real:
- The Jackery Explorer 1000 v2 is the lightest, at about 24 lb.
- The Anker SOLIX C1000 takes up to 600 W of solar, which matters if you’ll recharge from panels.
- The BLUETTI AC180 squeezes in the most capacity, 1,152 Wh.
- The EcoFlow DELTA 2 is the all-rounder: 1,024 Wh, 1,800 W out, and it can take an extra battery.
It’s a good fit for apartments, short outages, CPAP users and anyone buying their first one.
2,000 to 3,600 Wh: keeping the kitchen going
At this size you can keep the fridge, a freezer, the internet and lights running for about a day, run a window AC in short stretches, or keep a sump pump going through a storm. These units weigh 50–100 lb and usually have wheels. Many can grow to 7–25 kWh with add-on batteries, and the higher-end ones can be wired to a transfer switch.
The EcoFlow DELTA Pro is a typical example (3,600 Wh, 3,600 W, expandable). This is the size I’d look at for a house with regular outages, or for anyone who wants to ride out several days with solar.
3,800 Wh and up, with 240 V
This is real home backup. Through a transfer switch you can run selected circuits, including some 240 V well pumps, along with the fridge, the furnace blower and the basics. The Anker SOLIX F3800 (3,840 Wh, 6,000 W, 120/240 V, expandable) is the kind of unit we’re talking about.
It makes the most sense for homeowners who want a silent, indoor-safe alternative to a generator, especially with solar on the roof or panels in the yard.
Quick decision table
| If you need to power… | Size class | Example models |
|---|---|---|
| Phones, router, CPAP, lights | 300–1,000 Wh | RIVER 2, Explorer 300 Plus, 1 kWh units |
| + refrigerator for an overnight outage | 1,000–1,200 Wh | DELTA 2, Explorer 1000 v2, SOLIX C1000, AC180 |
| + fridge for a full day, freezer, sump | 2,000–3,600 Wh | DELTA Pro, or a 1 kWh unit + expansion battery |
| Home circuits, well pump, 240 V | 3,800 Wh+ | SOLIX F3800 |
Plan the recharging too
A power station with no way to recharge is only as good as its last charge. One or two 200 W panels can put back 600–1,600 Wh a day. The solar charge time calculator will tell you how long that takes where you live.
If we were buying today
We’d buy the smallest system that covers our essentials for one day, make sure it’s LiFePO4 and expandable, and spend what’s left on solar panels. That setup beats a bigger battery you have no way to refill.