BLUETTI Elite 400 vs EcoFlow DELTA Pro
Technical comparison · Home backup
Two portable stores of just under 4 kWh with LFP cells: the choice is between more power to deliver and recharge, or fewer kilos and more years of warranty. Figures are declared by the manufacturer.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 3.84 kWh | 3.6 kWh |
| Continuous output | 2600 W | 3600 W |
| Peak output | 5200 W | 7200 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 520.57 €/kWh | 610.83 €/kWh |
| List price | 1999 € | 2199 € |
| Weight | 39 kg | 45 kg |
| Outlets | ||
| AC outlets | Yes (×2) | Yes (×4) |
| How long it lasts | ||
| Battery life cycles | 1825 cicli | 1095 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 3000 cicli | 3500 cicli |
| Capacity at end of cycle life | 80 % | 80 % |
| Warranty | 5 anni | 3 anni |
| The numbers | ||
| Cost of stored energy | 0.285 €/kWh | 0.558 €/kWh |
| Energy density | 98.5 Wh/kg | 80 Wh/kg |
| Power-to-capacity ratio | 0.68 C | 1 C |
| Identity | ||
| Use tier | F3 — Flat-sized (3–8 kWh) | F3 — Flat-sized (3–8 kWh) |
| Price | ||
| Price | 1699 € | — |
| Universal specs | ||
| Voltage | — | 220 V |
| Category specs | ||
| Depth of discharge | 95 % | — |
| Expandable | — | Yes |
| Fastest USB-C | 100 W | 100 W |
| Maximum charge power | 2.3 kW | 2.875 kW |
| 0–80% charge time | 88 min | — |
| Maximum solar input | 1000 W | 1600 W |
| Backup power | UPS | EPS (brief interruption) |
| Switchover time | 15 ms | 30 ms |
| Ingress protection | IP20 | — |
| Mounting | Portable | Portable |
| Minimum temperature | -20 °C | -10 °C |
| Maximum temperature | 40 °C | 45 °C |
| Wheels and handle | Yes | Yes |
| App required for setup | No | — |
The differences that matter
- Continuous output 2600 W vs 3600 W → this is the total you can connect at once: the DELTA Pro leaves 1000 W more.
- Solar input 1000 W vs 1600 W → in theory, in full sun and without losses, about 4 hours to fill the Elite 400 and about 2 and a quarter hours for the DELTA Pro.
- Warranty 5 years vs 3 → at one cycle a day the cover lasts 1825 cycles vs 1095, fewer than the 3000 and 3500 declared: the years count.
- Switchover 15 ms (UPS) vs 30 ms with a gap (EPS) → the Elite 400 aims at uninterrupted supply, the DELTA Pro declares a brief pause.
Which one to choose
Choose BLUETTI Elite 400 if…
you want a lighter unit to move around (39 kg against 45) with longer cover, declared to work from -20 to 40 °C. You accept two mains outlets instead of four and a lower power ceiling.
Choose EcoFlow DELTA Pro if…
you run several appliances together on the four mains outlets and need start-up peaks of up to 7200 W, with a battery that can be expanded. You accept 45 kg and a shorter warranty.
Where to buy
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