Best mid-size power stations (500–1,024Wh), ranked by real value

How the value score works (0–100, same rubric on every page): up to 60 points for price efficiency — $0.30/Wh or better scores the full 60, $1.00/Wh or worse scores 0, linear in between — plus up to 40 for verified capability: solar charging 0/4/8/12 (none · ≤200W · ≤600W · >600W), inverter strength 0/5/10 (continuous watts per Wh of capacity: under 0.4 · under 0.9 · 0.9+; DC-only units 0), ports up to 12 (2+ AC outlets 4 — a rated AC inverter earns this base credit when the outlet count is unverified — 4+ outlets 6 · USB-C 3, +1 at 100W+ · 12V output 2), UPS 4, expandable 2. A "—" means the manufacturer doesn't state it or we haven't verified it — it scores zero rather than being guessed, so a missing spec is visible, never hidden. Select any score (hover, tap, or keyboard focus) for its exact breakdown. Different priorities? The Weight the score your way panel above re-ranks this table with your own weights — the math runs entirely in your browser, and the default view is always this published rubric.