Catalog ranking
Stations with the most capacity (Wh)
3 min read
PowerLight Editorial · reviewed on September 24, 2026
What we do know
- The capacity in Wh each manufacturer states on its spec sheet, ranked from highest to lowest.
- How many hours each capacity delivers with a device of known consumption, using the calculator's formula.
What we can't know
- How much capacity an already-used battery retains compared to its factory rating.
- Whether your agency accepts the exact model: it confirms that in writing, with its requirements, cost and timeline.
This ranking orders the catalog's power stations by a single criterion: battery capacity, from highest to lowest. We do it this way on purpose, because capacity is what decides how long a connected device lasts, and it's a figure every manufacturer states on its spec sheet.
The math is the same as the runtime calculator: hours = (Wh × efficiency) / W consumed, with a real efficiency between 80% and 90%. With 1024 Wh and a 55W standing fan, that's around 16 hours. With the same battery and a 150W home refrigerator running nonstop, around 6; the real compressor doesn't run nonstop (the calculator flags it as cyclic equipment), so in practice it delivers more.
More capacity doesn't mean more power: they're two different spec-sheet figures. Output power and peak power limit which devices you can connect, so it's worth checking those too and comparing the devices you care about in the calculator before deciding.
The ranking
26 of the catalog's 26 non-kit stations qualify — the ones that state their capacity. The 19 kits and bundles (station with solar panel or extra battery) don't compete: they share a battery with their base station and would repeat its position. The top 10 are shown.
| # | Device | Capacity |
|---|---|---|
| 1 | EcoFlow DELTA Pro Ultra | 6144 Wh |
| 2 | EcoFlow DELTA Pro 3 | 4096 Wh |
| 3 | BLUETTI Elite 400 | 3840 Wh |
| 4 | EcoFlow DELTA Pro | 3600 Wh |
| 5 | BLUETTI Elite 300 | 3014 Wh |
| 6 | BLUETTI Apex 300 | 2765 Wh |
| 7 | BLUETTI AC200PL | 2304 Wh |
| 8 | BLUETTI Elite 200 V2 | 2073 Wh |
| =9 | BLUETTI AC200L | 2048 Wh |
| =9 | EcoFlow DELTA 2 Max | 2048 Wh |
The top 5, in detail
- + The biggest backup possible in the catalog: up to 90 kWh combining batteries
- + 0ms online UPS — protects against any disturbance, not just total outages
- − Inverter and battery ship separately — more complex installation
- − Built for permanent installation, not for moving around
- + The biggest backup in the catalog: 4096 Wh, expandable up to 48 kWh
- + 10ms battery switchover — works as a true UPS
- − 52 kg: the most complex international shipping logistics in the entire catalog
- + More capacity than the DELTA Pro (3840 Wh vs 3600 Wh)
- + Wheel system — easier to move than similar units
- − 39 kg: still heavy, even with wheels
- − Slightly slower battery switchover (15ms vs the DELTA Pro's 10ms)
- + Solar charging up to 1600W: recovers fast even with the grid down
- + Expandable up to 25 kWh with extra batteries or a smart generator
- − 45 kg: more expensive and harder-to-manage international shipping
- + Capacity close to the DELTA Pro (3014 Wh vs 3600 Wh)
- + 6000+ cycle life — double the DELTA Pro
- − Only 2 AC ports
- − Doesn't include a solar panel