BLUETTI Elite 400 vs EcoFlow DELTA 3 Classic
Technical comparison · Home backup
Two LFP home power stations with UPS function and very different sizes: 3.84 kWh at 39 kg against 1.024 kWh at 12.1 kg. The question is whether you need a reserve that carries several loads together or a unit that moves around without effort. Power and charging times are manufacturer-declared values.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 3.84 kWh | 1.024 kWh |
| Continuous output | 2600 W | 1800 W |
| Peak output | 5200 W | 3000 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 520.57 €/kWh | 584.96 €/kWh |
| List price | 1999 € | 599 € |
| Weight | 39 kg | 12.1 kg |
| Dimensions (W×D×H) | — | 39.8 × 20 × 28.3 cm |
| Outlets | ||
| AC outlets | Yes (×2) | Yes (×3) |
| USB-C ports | — | Yes (×2) |
| USB-A ports | — | Yes |
| 12 V outputs | — | No |
| 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 | — |
| Capacity at end of cycle life | 80 % | — |
| Warranty | 5 anni | 3 anni |
| The numbers | ||
| Cost of stored energy | 0.285 €/kWh | 0.534 €/kWh |
| Energy density | 98.5 Wh/kg | 84.6 Wh/kg |
| Power-to-capacity ratio | 0.68 C | 1.76 C |
| Identity | ||
| Use tier | F3 — Flat-sized (3–8 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | 1699 € | ~450–1000 € |
| Category specs | ||
| Depth of discharge | 95 % | — |
| Fastest USB-C | 100 W | 100 W |
| Maximum charge power | 2.3 kW | 1.4 kW |
| 0–80% charge time | 88 min | 60 min |
| Maximum solar input | 1000 W | 500 W |
| Backup power | UPS | UPS |
| Switchover time | 15 ms | 10 ms |
| Ingress protection | IP20 | — |
| Mounting | Portable | Portable |
| Minimum temperature | -20 °C | -10 °C |
| Maximum temperature | 40 °C | 45 °C |
| Wheels and handle | Yes | — |
| App required for setup | No | — |
The differences that matter
- 3.84 kWh and 39 kg vs 1.024 kWh and 12.1 kg → the first is a reserve to leave at home, the second is carried around.
- Continuous output 2,600 W vs 1,800 W → the ceiling for summed loads rises from 1,800 W to 2,600 W.
- Charge 0–80% in 88 min vs 60 min → despite the higher input (2.3 kW vs 1.4 kW), the first needs 28 minutes longer to reach 80%, because it holds almost four times the capacity.
- Solar input 1,000 W vs 500 W → the first takes twice the panel power.
Which one to choose
Choose BLUETTI Elite 400 if…
you want a home reserve for several appliances at once, with peaks up to 5,200 W, and expect to keep it for years: the warranty is 5 years and 3,000 cycles are declared. The trade-off is 39 kg and a longer charge to 80%.
Choose EcoFlow DELTA 3 Classic if…
you need a unit to move from room to room with plenty of ports: three mains sockets, two USB-C and one USB-A, at 12.1 kg. You accept a smaller capacity, a 3-year warranty and a lower continuous output.
Where to buy
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