Some power stations can sit between the wall and your devices. When the grid drops, they switch to battery. The maker lists how fast that happens in milliseconds (ms). This guide explains what the number means and which models state the lowest times. Prices are as of November 8, 2026. Many are sale prices, and some models are pre-orders.
What UPS mode is
An uninterruptible power supply (UPS) provides power to a load when the main supply fails. Small units protect computers and similar equipment. A power station with a UPS or EPS mode works the same way. You plug the station into the wall and your devices into the station. If the grid fails, the station takes over.
Switchover time is the gap between the grid failing and the battery supplying power. A shorter gap means less chance that a sensitive device notices. The figure comes from the maker and we have not tested it. If a page does not state a figure, we show it as not stated.
What the makers state
We found these stated switchover times in our data.
| Stated time | Models |
|---|---|
| 0 ms | Pecron F5000LFP |
| 10 ms | 21 models, including most EcoFlow, Oukitel and BLUETTI Elite units |
| 15 ms | ALLPOWERS R1500, R2500 V2 and R3500, BLUETTI Apex 200 and Elite 400, and all Dabbsson models that state it |
| 20 ms | Anker SOLIX C1000X, Jackery Explorer 2000 v2 |
The Jackery page for the Explorer 2000 v2 says "less than 20 ms", and we show 20. Not every model states a time. Many do not, including the BLUETTI AC180, the Anker SOLIX F3000 and S5000, and the Jackery HomePower 3000.
Models with the lowest stated times
| Model | Switchover | Capacity | Output | Price |
|---|---|---|---|---|
| Pecron F5000LFP | 0 ms | 5,120 Wh | 7,200 W | $2,399 |
| EcoFlow DELTA 3 Ultra | 10 ms | 3,072 Wh | 3,600 W | $1,299 |
| BLUETTI Elite 300 | 10 ms | 3,014.4 Wh | 2,400 W | $1,199 |
| Oukitel P2001 Plus | 10 ms | 2,048 Wh | 2,400 W | $729 |
| Anker SOLIX S2000 | 10 ms | 2,010 Wh | 1,500 W | $729.99 |
| Oukitel P1000 Plus | 10 ms | 1,024 Wh | 1,800 W | $419 |
| Jackery HomePower 1000 v2 | 10 ms | 1,024 Wh | 1,500 W | $559 |
The Pecron F5000LFP is the only 0 ms listing, and it is a pre-order that ships later. Its warranty term is unclear in our data. Among the 10 ms models, the Oukitel P1000 Plus is the cheapest at $419. It lists a 1 year warranty, and 2 extra years need a subscription. Anker SOLIX and BLUETTI list 5 years. EcoFlow lists 3 years, with 2 more on app registration.
What it matters for
Switchover time matters most for devices that stop when power blinks. Examples are desktop computers, network gear such as a router, and medical or other equipment that the maker says needs continuous power. Check the device maker's guidance on how long a gap it tolerates. A refrigerator or a light usually rides through a short gap with no harm.
A power station is not a medical device. If a person depends on powered equipment, talk to the equipment maker and your provider about backup.
Other things to check
A UPS mode only works if the station stays plugged into the wall and set to that mode. Confirm the setting in the maker's manual. Check that the output covers your devices, and that the capacity gives the hours you need. Our sizing guide shows how.
Rankings
Compare all stated times on the UPS list. See also the home backup list and the under $1,000 list. For general advice, read how to choose a home backup power station.
