Power Station $/Wh
Which portable power station gives the most battery for the money — every spec from the manufacturers' own listings

EcoFlow RIVER Max — dollars per watt-hour

EcoFlow · 576 Wh

Battery value at list price #35 of 73
$0.78 per Wh
576 Wh for $449.00 list — that is right at the median for the stations we track.

The math

$449.00 list price ÷ 576 Wh = $0.78 per watt-hour

One number to compare any two stations fairly: what a watt-hour of battery costs at the maker's own list price. How and why we compute this.

Specifications (as listed by the manufacturer)

Battery capacity576 Wh
List price (MSRP)$449.00
Dollars per Wh$0.78/Wh
Rated AC outputnot stated on the listing
Battery chemistrynot stated on the listing
Weight16 kg (35.3 lb)
Port types mentionedAC

Where the capacity figure comes from

Extracted from the manufacturer's own listing (body), captured 2026-09-05:

…1 HOUR • POWER UP TO 10 DEVICES SIMULTANEOUSLY • MODULAR DESIGN • 3 x 600W AC OUTLETS AND 576Wh CAPACITY

Source: https://us.ecoflow.com/products/river-max-portable-power-station

Buying

EcoFlow RIVER Max — list price $449.00 (store price (no separate list price shown)) as captured 2026-09-05. Street prices move often, especially around sales; check the manufacturer's store for today's price. This site does not track live prices yet.

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