EcoFlow DELTA 3 Plus vs EcoFlow DELTA Pro
Technical comparison · Home backup
Two units from the same brand with different aims: 1 kWh and 12.5 kg against 3.6 kWh and 45 kg. It comes down to whether you need something to carry or a reserve that can handle heavy loads.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.024 kWh | 3.6 kWh |
| Continuous output | 1800 W | 3600 W |
| Peak output | 3600 W | 7200 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 750.98 €/kWh | 610.83 €/kWh |
| List price | 769 € | 2199 € |
| Weight | 12.5 kg | 45 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 | 1095 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 4000 cicli | 3500 cicli |
| Capacity at end of cycle life | 80 % | 80 % |
| Warranty | 5 anni | 3 anni |
| The numbers | ||
| Cost of stored energy | 0.411 €/kWh | 0.558 €/kWh |
| Energy density | 81.9 Wh/kg | 80 Wh/kg |
| Power-to-capacity ratio | 1.76 C | 1 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F3 — Flat-sized (3–8 kWh) |
| Price | ||
| Price | ~450–1000 € | — |
| Universal specs | ||
| Voltage | — | 220 V |
| Category specs | ||
| Expandable | Yes | Yes |
| Maximum expanded capacity | 5 kWh | — |
| Fastest USB-C | 140 W | 100 W |
| Maximum charge power | 1.5 kW | 2.875 kW |
| Maximum solar input | 1000 W | 1600 W |
| Backup power | UPS | EPS (brief interruption) |
| Switchover time | 10 ms | 30 ms |
| Mounting | Portable | Portable |
| Minimum temperature | — | -10 °C |
| Maximum temperature | — | 45 °C |
| Wheels and handle | — | Yes |
The differences that matter
- Continuous (10 ms) vs emergency with a pause (30 ms) → only the first switches to battery without interrupting what it feeds.
- Maximum charge power 1.5 kW vs 2.875 kW → emptied, the first is full again in under an hour, the second in an hour and a quarter, but with more than three times the energy.
- Solar input 1,000 W vs 1,600 W → in full sun the first fills in about an hour, the second in a little over two.
- Warranty 5 years vs 3 → the first is covered for longer.
Figures are declared by the manufacturer.
Which one to choose
Choose EcoFlow DELTA 3 Plus if…
you want a unit you move by hand, expandable up to 5 kWh with extra batteries, and a 140 W USB-C port for laptops. The trade-off is power: very heavy loads stay out.
Choose EcoFlow DELTA Pro if…
you need loads up to 3,600 W with surges up to 7,200 W and a 3.6 kWh reserve, and the unit has wheels and a handle to move it. The trade-off is the weight: 45 kg.
Where to buy
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