A comparison site that does the math.

Batfind ranks portable power stations by the only metric that actually matters when you’re buying stored energy: price per watt-hour.

Marketplaces list batteries with inconsistent specs — mAh on one listing, Wh on another, packs versus single cells, total versus usable capacity. Working out which is actually cheapest is surprisingly hard. Batfind does it for you.

We earn affiliate commissions on outbound purchases. We do not accept paid placements in rankings. Rankings are computed mechanically: divide price by watt-hours, sort ascending. The data is open — every offer lists its source, price, and the date we last checked it.

Read the methodology for details, or browse the power station rankings.