Transparent assumptions
We show the formula and default efficiency assumption instead of presenting an estimate as a guarantee.
About RuntimeStation
An independent English-language planning resource for portable power stations, solar generators, and backup-power decisions.
What we do
RuntimeStation turns appliance wattage, usable battery capacity, continuous output, startup surge, and duty cycle into practical runtime estimates. We also publish model comparison tables, compatibility guides, and buying guides for home backup, camping, RV travel, and CPAP power planning.
Manufacturer-verified data
Starter specifications and reference prices are checked against manufacturer product pages and marked with a verification date.
No fake testing claims
We do not claim hands-on testing unless it actually happened. Data-based guides are labeled as such.
How we make money
Some outbound product links are affiliate links. If you buy through one, RuntimeStation may earn a commission at no additional cost to you. Affiliate relationships do not determine which models are included in the database, and manufacturers cannot pay for a ranking or a positive conclusion.
Editorial standards
We distinguish planning estimates from manufacturer specifications. When a surge rating or price is missing, we mark it for verification instead of guessing. Prices, bundles, stock, and specifications can change; always verify the current manufacturer page before purchasing.