About SteadyWatts
SteadyWatts exists because backup-power advice is drowning in two kinds of dishonesty: runtime claims with no math behind them, and "hands-on reviews" that are neither. We take a different deal with the reader.
How we work
- Specs, not vibes. Every recommendation follows from published, checkable numbers: watt-hours, continuous and surge output, battery chemistry, cycle ratings, charge times, port specs, and verified prices. If a claim can't be defended with a number, we don't make it.
- The math is shown. Runtime estimates on this site always display their assumptions — inverter efficiency, duty cycle, load wattage — so you can substitute your own appliance's numbers and check us.
- What we don't do: we don't do hands-on testing, and we won't pretend to. You will never read about how a unit "feels solid" here. For build-quality and reliability questions, teardown channels and lab reviewers with measurement gear are the right source, and we'll point to that kind of evidence when it exists.
- Prices are timestamps. This category discounts constantly. Prices on this site are marked with when they were checked and should be treated as "around" — the buttons exist so you can see today's number.
How this site makes money
This site contains affiliate links. If you purchase through qualifying links, we may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases.
Commissions never decide a verdict. Where two products tie on the sheet, we say it's a tie and tell you to buy the cheaper one that day — even though that's worse for us.
Corrections
If a spec on this site is wrong, we want to know and we'll fix it visibly. The whole model depends on the numbers being right.