US backup power / decision tool

Size the power.
Then choose.

A source-linked screening tool for the load you actually need—not another generic “best power station” list.

Start with your use case
02 cited models 01 visible formula 0 live affiliate links

01 / Your load

Start with the moment
you need to survive.

Use a real appliance or a conservative estimate. The result is a screening signal, not a promise.

Efficiency is an explicit assumption. Real runtime varies with temperature, reserve, duty cycle, inverter behavior and battery condition.

02 / Screening result

How the same load
changes the decision.

Enter a load to see the comparison.

A

EcoFlow / DELTA 2 Max

Balanced 2 kWh class

View source
Capacity2048 Wh
AC output2400 W
Surge4800 W
Weight50 lb
Illustrative runtime—
—
B

Jackery / Explorer 2000 Plus

Higher-output 2 kWh class

View source
Capacity2042.8 Wh
AC output3000 W
Peak6000 W
Weight61.5 lb
Illustrative runtime—
—

03 / Read the assumptions

A useful answer
shows its edges.

Nominal watt-hours are only one input. The actual choice can turn on surge behavior, transfer-switch setup, solar input, portability, warranty and the exact appliance.

What this screen does not prove
  • It is not a manufacturer guarantee or independent test.
  • It does not determine electrical-code compliance or installation safety.
  • It does not include a live affiliate link or commission tracking.
  • It does not choose a “best” product without a complete use case.

Disclosure placeholder: When a merchant link is approved, a clear affiliate disclosure must appear next to the recommendation.