This listing bundles the main unit with one expansion battery, and the maker claims two to three days of refrigerator backup out of the box. For a household with a refrigerator and a chest freezer that is the right scale: together they might draw 1,800 to 2,200Wh a day, so a 4,032Wh bank carries them for roughly two days without any sun.
What separates it from a general power station is the standby behavior. It claims 4W of self-consumption and a 10ms switch to battery, and if the unit itself fails it returns to grid power automatically so the food never loses supply. The 3,600W surge comfortably handles two compressors starting at once.
It is slim, meant to sit near the appliances, and has a display you can place on the refrigerator door. Compared with the Anker S2000 it is more purpose-built but less portable. Dust the vents each season, check the automatic return to grid by tripping a breaker once a year and keep the pair of batteries around half charged if you are heading out of town. The display also shows remaining hours, which beats guessing when a storm is still raging.
What works
- Includes an expansion battery for 4,032Wh
- 4W standby draw preserves stored energy
- Automatic return to grid if the unit fails
- 3,600W surge covers two compressor starts
Watch out for
- Purpose-built, less flexible for camping
- Less portable than a handle-style station
- Solar panels are an extra purchase
Spec sheet
- Capacity
- 2,016Wh, expands to 4,032Wh
- Rated AC output
- 1,800W
- Surge
- 3,600W
- Standby draw
- About 4W
- Switchover
- 10ms






