BLUETTI AC180P vs EcoFlow DELTA 2 Max
Technical comparison · Home backup
The two differ in size and in how they handle an outage: 1.44 kWh against 2.048 kWh, and UPS-style continuity against a brief pause (EPS) when the grid drops. Figures are manufacturer-declared.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.44 kWh | 2.048 kWh |
| Continuous output | 1800 W | 2400 W |
| Peak output | — | 4800 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 763.89 €/kWh | 585.45 €/kWh |
| List price | 1100 € | 1199 € |
| Weight | 16 kg | 23 kg |
| Outlets | ||
| AC outlets | Yes (×2) | Yes (×4) |
| How long it lasts | ||
| Battery life cycles | 1825 cicli | 1825 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 3500 cicli | 3000 cicli |
| Capacity at end of cycle life | 80 % | 80 % |
| Warranty | 5 anni | 5 anni |
| The numbers | ||
| Cost of stored energy | 0.419 €/kWh | 0.321 €/kWh |
| Energy density | 90 Wh/kg | 89 Wh/kg |
| Power-to-capacity ratio | 1.25 C | 1.17 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | ~450–1000 € | — |
| Universal specs | ||
| Voltage | — | 220 V |
| Category specs | ||
| Expandable | — | Yes |
| Maximum expanded capacity | — | 6.144 kWh |
| Fastest USB-C | 100 W | 100 W |
| Maximum charge power | 1.44 kW | 2.4 kW |
| 0–80% charge time | 45 min | 53 min |
| Maximum solar input | 500 W | 1000 W |
| Backup power | UPS | EPS (brief interruption) |
| Switchover time | 20 ms | 20 ms |
| Mounting | Portable | Portable |
| Minimum temperature | -20 °C | -10 °C |
| Maximum temperature | 40 °C | 45 °C |
| App required for setup | No | — |
The differences that matter
- Continuous output 1800 W vs 2400 W → the second carries a higher total load at once
- Maximum solar input 500 W vs 1000 W → the first refills slowly from panels, the second takes a larger array
- Maximum charge power 1.44 kW vs 2.4 kW → recharging from the grid is much quicker on the second
- Backup: UPS vs EPS → with the second, supply cuts out for a moment at changeover
Which one to choose
Choose BLUETTI AC180P if…
A PC, a router and a few devices that must not reboot when the power drops, kept in a cold garage or workshop: it is rated from −20 to 40 °C and weighs 16 kg against 23 kg. The trade-off is less stored energy and two mains sockets instead of four.
Choose EcoFlow DELTA 2 Max if…
A household with several appliances to keep running during an outage: four mains sockets, expansion up to 6.144 kWh and a 0–80% charge in 53 minutes. The trade-off is a brief pause when the grid drops (EPS) and 23 kg to move around.
Where to buy
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