EcoFlow DELTA 2 Max vs EcoFlow DELTA 3 Plus
Technical comparison · Home backup
The DELTA 2 Max has twice the capacity and more power; the DELTA 3 Plus weighs a little over half as much and switches to battery without a gap. Power and switchover figures are manufacturer-declared.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 2.048 kWh | 1.024 kWh |
| Continuous output | 2400 W | 1800 W |
| Peak output | 4800 W | 3600 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 585.45 €/kWh | 750.98 €/kWh |
| List price | 1199 € | 769 € |
| Weight | 23 kg | 12.5 kg |
| Dimensions (W×D×H) | — | 39.76 × 28.36 × 20.2 cm |
| Outlets | ||
| AC outlets | 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 | 3000 cicli | 4000 cicli |
| Capacity at end of cycle life | 80 % | 80 % |
| Warranty | 5 anni | 5 anni |
| The numbers | ||
| Cost of stored energy | 0.321 €/kWh | 0.411 €/kWh |
| Energy density | 89 Wh/kg | 81.9 Wh/kg |
| Power-to-capacity ratio | 1.17 C | 1.76 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 | Yes |
| Maximum expanded capacity | 6.144 kWh | 5 kWh |
| Fastest USB-C | 100 W | 140 W |
| Maximum charge power | 2.4 kW | 1.5 kW |
| 0–80% charge time | 53 min | — |
| Maximum solar input | 1000 W | 1000 W |
| Backup power | EPS (brief interruption) | UPS |
| Switchover time | 20 ms | 10 ms |
| Mounting | Portable | Portable |
| Minimum temperature | -10 °C | — |
| Maximum temperature | 45 °C | — |
The differences that matter
- 2.048 vs 1.024 kWh → the Max has twice the energy to use before recharging.
- 2400 vs 1800 W continuous → the ceiling for loads running together is higher on the Max.
- EPS at 20 ms vs UPS at 10 ms → the 3 Plus is classed as continuous power, the Max as switchover with a brief pause.
- USB-C at 100 vs 140 W → a laptop with a 140 W adapter charges at full power only from the 3 Plus.
Which one to choose
Choose EcoFlow DELTA 2 Max if…
it stays in one place at home and you need more energy and a higher load ceiling, with a declared 53 minutes to reach 80%. You accept 23 kg to move and a brief interruption when it switches to battery (EPS).
Choose EcoFlow DELTA 3 Plus if…
you move it often and power appliances that cannot tolerate even a brief interruption, or charge a laptop from a 140 W adapter. You give up half the energy and some of the power.
Where to buy
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