Start with a real use case
Refrigerator, networking kit, freezer, workbench—not a vague “best overall” label.
US backup power / decision guide
Choose for the
load you live with.
Field Current turns a real appliance, a real runtime target and a visible surge assumption into a calmer buying decision.
Size my use case
See the method
Read the sizing guide
Read output vs. surge
Read the 2 kWh comparison
Private review build · no live affiliate links
01 The decision starts at the outlet.
The method
A useful answer
shows its edges.
Nominal watt-hours are only one input. We keep the load, target and assumptions visible before any product link earns a place.
Make the math readable
Capacity × screening efficiency ÷ average load gives an illustrative runtime signal.
Keep the trade-offs in view
Surge output, portability, solar input, warranty and installation boundaries still matter.
Source-linked, not source-shaped
Two 2 kWh-class
starting points.
The private comparison currently uses manufacturer-published US sources. It does not claim a universal winner, independent lab performance or guaranteed runtime.
View the private comparisonModelCapacityAC outputSource
Specs checked 2026-09-25 · canonical source links · no affiliate tracking parameter
Next, your load
Give the calculator
something real.
Try a refrigerator, router + laptop, or freezer scenario before you compare a product page.
Open the private checkerReview boundary
Trust is part
of the interface.
This is a private review build. There are no live affiliate links or commission tracking on this page.
Before publication, each commercial recommendation needs a clear affiliate disclosure next to the link, current merchant terms, and human review of technical and safety claims.