BLUETTI Elite 300 vs EcoFlow DELTA 2
Technical comparison · Home backup
BLUETTI Elite 300 and EcoFlow DELTA 2 set the trade-off in opposite directions within the same home backup category: more power and capacity right away on one side, more years of coverage and room to grow on the other. How each handles the switch to battery during an outage matters too.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 3.0144 kWh | 1.024 kWh |
| Continuous output | 2400 W | 1800 W |
| Peak output | 4800 W | 2700 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 547.04 €/kWh | 584.96 €/kWh |
| List price | 1649 € | 599 € |
| Weight | 26.3 kg | 12 kg |
| Dimensions (W×D×H) | 36.6 × 30.5 × 29.75 cm | — |
| Outlets | ||
| AC outlets | Yes (×2) | Yes (×4) |
| How long it lasts | ||
| Battery life cycles | 730 cicli | 1825 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 6000 cicli | 3000 cicli |
| Capacity at end of cycle life | 80 % | 80 % |
| Warranty | 2 anni | 5 anni |
| The numbers | ||
| Cost of stored energy | 0.749 €/kWh | 0.321 €/kWh |
| Energy density | 114.6 Wh/kg | 85.3 Wh/kg |
| Power-to-capacity ratio | 0.8 C | 1.76 C |
| Identity | ||
| Use tier | F3 — Flat-sized (3–8 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | 1399 € | — |
| Universal specs | ||
| Voltage | — | 220 V |
| Category specs | ||
| Expandable | — | Yes |
| Fastest USB-C | 140 W | 100 W |
| Maximum charge power | — | 1.2 kW |
| 0–80% charge time | 78 min | — |
| Maximum solar input | 1200 W | 500 W |
| Backup power | UPS | EPS (brief interruption) |
| Switchover time | 10 ms | 30 ms |
| Ingress protection | IP20 | — |
| Mounting | Portable | Portable |
| Minimum temperature | — | -10 °C |
| Maximum temperature | — | 45 °C |
The differences that matter
- Maximum solar input: 1200 W vs 500 W → the Elite 300 recharges faster from solar panels.
- Warranty: 2 years vs 5 years → the DELTA 2 carries a longer manufacturer coverage.
- Continuous output: 2400 W vs 1800 W → the Elite 300 runs more appliances together.
- Backup power: continuous (UPS) vs EPS with a brief pause → only the Elite 300 avoids a dropout at switchover.
Which one to choose
Choose BLUETTI Elite 300 if…
Choose BLUETTI Elite 300 if you need more capacity right away (3 kWh vs 1 kWh) and don't plan to expand later. The trade-off is shorter manufacturer warranty coverage.
Choose EcoFlow DELTA 2 if…
Choose EcoFlow DELTA 2 if you'd rather have a lighter unit (12 kg vs 26.3 kg) that's easy to move and want the option to expand capacity later, with a longer warranty. The trade-off is less power available and a brief dropout when switching to battery.
Where to buy
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