How long will a power station keep wifi up in an outage?

Home internet is one of the cheapest things to back up: a router and modem together draw about 10–20W — less than a light bulb. Almost any power station keeps them alive for a full working day, so for this scenario the interesting question isn't whether a station qualifies but how little you need to spend. The table ranks by price per watt-hour; for a wifi-only backup, the small end of the list is usually the rational buy.

One caveat: if your internet comes through fiber, the optical terminal (ONT) is a few extra watts, and cable amplifiers in apartment buildings may be outside your control — a station keeps your gear up, not necessarily the street's.

How the table is computed: runtime = rated capacity × 85% usable ÷ average draw. Prices are today's price at each brand's official store (including on-page promo prices where we can verify them); the table re-ranks every night. Omitted: out-of-stock models, models without a current battery-only price, models whose runtime rounds below half a hour, and stations below 50W continuous output (or without a published rating) — they can't run this load regardless of capacity. Methodology.