EcoFlow DELTA 3 vs EcoFlow DELTA 3 Max Plus
Technical comparison · Home backup
Same EcoFlow family, same LFP chemistry and 10 ms UPS switchover: the choice is about how much power the home needs. The DELTA 3 Max Plus starts at 2.048 kWh and reaches 3000 W continuous, while the DELTA 3 stops at 1.024 kWh and 1800 W but moves with one hand.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.024 kWh | 2.048 kWh |
| Continuous output | 1800 W | 3000 W |
| Peak output | 3600 W | 6000 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 877.93 €/kWh | 731.93 €/kWh |
| List price | 899 € | 1499 € |
| Weight | 12.5 kg | 22.1 kg |
| Dimensions (W×D×H) | 20.2 × 39.76 × 28.36 cm | 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 | 4000 cicli | — |
| Capacity at end of cycle life | 80 % | — |
| Warranty | 5 anni | 3 anni |
| The numbers | ||
| Cost of stored energy | 0.481 €/kWh | 0.668 €/kWh |
| Energy density | 81.9 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 | ~450–1000 € | ~1000–2200 € |
| Category specs | ||
| Expandable | Yes | Yes |
| Maximum expanded capacity | 5 kWh | 10 kWh |
| Fastest USB-C | 100 W | 140 W |
| Maximum charge power | 1.5 kW | 2.3 kW |
| 0–80% charge time | — | 68 min |
| Maximum solar input | 500 W | 1000 W |
| Backup power | UPS | UPS |
| Switchover time | 10 ms | 10 ms |
| Ingress protection | — | IP20 |
| Mounting | Portable | Portable |
| Minimum temperature | — | -10 °C |
| Maximum temperature | — | 45 °C |
| Noise level | 30 dB | 25 dB |
The differences that matter
- 1800 against 3000 W continuous → above 1800 W you need the Max Plus; below, the DELTA 3 is enough.
- Solar input 500 against 1000 W → the Max Plus takes more panel, so charging from the sun is quicker.
- Expansion to 5 against 10 kWh → the Max Plus has more room to grow with add-on modules.
- Warranty 5 against 3 years → the DELTA 3 stays covered two years longer, despite being the smaller one.
Manufacturer-declared values.
Which one to choose
Choose EcoFlow DELTA 3 if…
the unit lives in a corner and occasionally goes to the garage or garden: it weighs 12.5 kg, declares 4000 cycles to 80% remaining capacity and five years of warranty. The trade-off is the power ceiling: above 1800 W continuous the load does not run, and 500 W of solar input stretches panel-charging days.
Choose EcoFlow DELTA 3 Max Plus if…
you want to run several devices together from one unit: the Max Plus has four mains sockets, three USB-C, one USB-A and two 12 V outputs, and declares 68 minutes from 0 to 80%. The trade-off is weight, 22.1 kg, which makes it a machine to position rather than carry around, and a shorter warranty.
Where to buy
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