The three information sources

  1. Manufacturer spec sheets. Capacity, output, weight, ports, noise and warranty are taken from the official product pages of each brand. When a spec is not published, we write “to be confirmed” instead of guessing.
  2. Official documentation. Manuals, safety documentation and support pages are used for details such as fuel requirements, CO shutoff behavior and charging rules.
  3. Aggregated buyer feedback. Patterns reported by many owners (a port that fails early, a unit that is louder than the spec sheet suggests) inform the practical “limitation” notes in our guides. Individual anecdotes are never presented as facts.

What each check covers

When a product appears in a guide, we look at the same core points:

Evaluation criteria used across the site
CriterionWhere the data comes fromWhy it matters
Capacity (Wh)Manufacturer spec sheetHow long the unit can run your loads
Rated and surge output (W)Manufacturer spec sheetWhich appliances it can start and keep running
Weight and portsManufacturer spec sheetWhether it fits your trips and your devices
Noise and fuel (generators)Manuals and official specsWhere you can realistically run it
Common owner complaintsAggregated buyer feedbackPractical limitations that spec sheets omit

Keeping information current

Product pages change and prices move. Articles show a “Last updated” date, and product data lives in a single data file so a correction updates every page that mentions the product.

How we make money

The site may earn a commission when you buy through links to retailers. This never changes the price you pay and never decides what we write. The full explanation is on the affiliate disclosure page.