EcoFlow DELTA 2 vs EcoFlow DELTA 3 Max Plus
Technical comparison · Home backup
EcoFlow DELTA 2 and DELTA 3 Max Plus are two LFP power stations from the same maker, both expandable: the first is the small size, the second has twice the capacity and much higher output. The choice is between 1.024 and 2.048 kWh and between 1800 and 3000 W continuous (manufacturer-declared values).
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.024 kWh | 2.048 kWh |
| Continuous output | 1800 W | 3000 W |
| Peak output | 2700 W | 6000 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 584.96 €/kWh | 731.93 €/kWh |
| List price | 599 € | 1499 € |
| Weight | 12 kg | 22.1 kg |
| Dimensions (W×D×H) | — | 49.4 × 24.2 × 30.5 cm |
| Outlets | ||
| AC outlets | Yes (×4) | Yes (×4) |
| USB-C ports | — | Yes (×3) |
| USB-A ports | — | Yes |
| 12 V outputs | — | Yes (×2) |
| 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 | 0.321 €/kWh | 0.668 €/kWh |
| Energy density | 85.3 Wh/kg | 92.7 Wh/kg |
| Power-to-capacity ratio | 1.76 C | 1.46 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | — | ~1000–2200 € |
| Universal specs | ||
| Voltage | 220 V | — |
| Category specs | ||
| Expandable | Yes | Yes |
| Maximum expanded capacity | — | 10 kWh |
| Fastest USB-C | 100 W | 140 W |
| Maximum charge power | 1.2 kW | 2.3 kW |
| 0–80% charge time | — | 68 min |
| Maximum solar input | 500 W | 1000 W |
| Backup power | EPS (brief interruption) | UPS |
| Switchover time | 30 ms | 10 ms |
| Ingress protection | — | IP20 |
| Mounting | Portable | Portable |
| Minimum temperature | -10 °C | -10 °C |
| Maximum temperature | 45 °C | 45 °C |
| Noise level | — | 25 dB |
The differences that matter
- 1.024 kWh vs 2.048 kWh → at the same load and ignoring losses, the second runs about twice as long; both expand, the second up to 10 kWh.
- 1800 W vs 3000 W continuous, peaks of 2700 W vs 6000 W → sets which appliances can run together and the declared start-up peak they can have.
- Solar input 500 W vs 1000 W, grid charging 1.2 kW vs 2.3 kW → the second accepts more input power, but also has twice the capacity to fill.
- EPS in 30 ms vs UPS in 10 ms → the first switches to battery with a brief pause, the second declares continuity.
Which one to choose
Choose EcoFlow DELTA 2 if…
a 12 kg station and loads under 1800 W are enough, and you want a 5-year warranty. You accept 1.024 kWh, grid charging at 1.2 kW and, during an outage, emergency mode with a brief pause (EPS, 30 ms) instead of continuity.
Choose EcoFlow DELTA 3 Max Plus if…
you want more energy and more power: 2.048 kWh expandable to 10 kWh, 3000 W continuous with declared peaks of 6000 W, continuity in 10 ms (UPS) and grid charging at 2.3 kW. You accept 22.1 kg of weight and a 3-year warranty instead of 5.
Where to buy
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The purchase links are the same as on the two product pages and don't influence the verdict. The product pages have the complete data.