We compared the verified specs of 15 power stations and picked the best for each kind of outage with fixed rules you can check. No paid placements, and no pretending we tested what we didn't.
Why it's here: Enough capacity to run a modern fridge through the night or a CPAP for several nights, light enough to carry from room to room, and fast enough to switch on before a CPAP or router notices the outage.
The rule: 1,000 Wh class (900–1,300 Wh) with a UPS switchover of 20 ms or less, ranked by output watts per pound.
Why it's here: If you will also use it for camping, solar self-consumption or daily backup, more rated cycles means more years before the battery wears down.
The rule: Among the 2,000 Wh class, the highest rated charge cycles to 80% capacity.
Tap a column to sort. "Fridge runs" assumes a modern refrigerator averaging 60 W and 85% usable capacity. "—" means the manufacturer doesn't publish it.
How to choose a power station for home backup
Start from your list, not the box. Add up what you need to keep running and for how long. The watt hour calculator gives you the capacity; the backup power planner checks the output and motor start-up surge.
Check the output and the surge. A fridge compressor or sump pump needs a short spike to start. If the power station can't deliver it, it shuts off.
Look for a fast UPS switchover (20 ms or less) if you'll leave a router, computer or CPAP plugged in.
Plan how you'll recharge. Solar input watts tell you how fast panels can refill it during a long outage. See our solar generator guide.
Only pay for 240 V if you need it. Well pumps and central AC need it; most homes' essentials don't.
Frequently asked questions
What size power station do I need for home backup?
For a fridge, Wi-Fi, lights and phones through a typical overnight outage, about 1,000 to 1,500 Wh. For a full day of those essentials, about 2,000 Wh. For multi-day outages, a sump pump or a well pump, look at 3,000 Wh or more, expansion batteries, solar panels, or a generator. Our watt hour calculator works out your exact number.
Can a portable power station run my whole house?
Most can't. Even large 120 V units run a few circuits, not a whole home. A handful of whole-home systems with 240 V output and expansion batteries can power more of the house through a transfer switch installed by an electrician, but for central air or several days of heavy use, a generator is still the practical choice.
What does UPS switchover time mean?
It's how fast the power station takes over when the grid power cuts, while your devices stay plugged into it. Around 10 to 20 milliseconds is fast enough that most routers, computers and CPAP machines keep running without restarting. Models that don't publish a time may still switch over, just not fast enough to promise it.
LiFePO4 or lithium-ion (NMC)?
Nearly every current home backup power station uses LiFePO4 (lithium iron phosphate). It's heavier per watt-hour than the NMC batteries in older units, but it lasts thousands more charge cycles and is more stable, which is what you want in a box that sits in your house for years.
Did you test these power stations?
No, and we won't pretend we did. These picks come from each manufacturer's published specifications, checked against their official product pages or manuals, and from fixed rules you can read under each pick. See how we pick products for the full method.
Specs from manufacturers' official pages and manuals, last checked October 21, 2026. We don't show prices because they change daily. As an Amazon Associate I earn from qualifying purchases; it never affects which models are picked. See how we pick.
