DJI Power 1000 V2 vs EcoFlow DELTA 3 Max
Technical comparison · Home backup
Similar continuous output (2600 W against 2400 W, manufacturer-declared figures), different capacity and two opposite ways of filling up: the DJI mostly from the sun, the DELTA mostly from the wall. That is what decides it.
| Parameter | ||
|---|---|---|
| Awards | — | |
| In brief | ||
| Nominal capacity | 1.024 kWh | 2.048 kWh |
| Continuous output | 2600 W | 2400 W |
| Peak output | — | 4800 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 708.01 €/kWh | 634.28 €/kWh |
| List price | 725 € | 1299 € |
| Weight | 14.2 kg | 20.3 kg |
| Dimensions (W×D×H) | — | 49.4 × 23.9 × 30.5 cm |
| Outlets | ||
| AC outlets | Yes (×2) | 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 | — |
| Capacity at end of cycle life | 80 % | — |
| Warranty | 5 anni | 3 anni |
| The numbers | ||
| Cost of stored energy | 0.388 €/kWh | 0.579 €/kWh |
| Energy density | 72.1 Wh/kg | 100.9 Wh/kg |
| Power-to-capacity ratio | 2.54 C | 1.17 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | 649 € | ~1000–2200 € |
| Universal specs | ||
| Voltage | 220 V | — |
| Category specs | ||
| Expandable | Yes | No |
| Maximum expanded capacity | 11.264 kWh | — |
| Fastest USB-C | 140 W | 100 W |
| Maximum charge power | 1.44 kW | 2.3 kW |
| 0–80% charge time | 37 min | — |
| Maximum solar input | 1800 W | 500 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 | 26 dB | 25 dB |
JouleSpecs Awards
Best value Room-sized (1–3 kWh)
Best balance of technical score and price among the 15 sheets in the Home backup category (room-sized tier): list price €649, technical score 76/100.
How we assign awards →No awards in this tier.
The differences that matter
- Solar input 1800 W vs 500 W → with a proper array of panels the DJI makes sense; for the DELTA the sun is an add-on.
- Grid charging 1.44 kW vs 2.3 kW → the DELTA fills up faster from the wall, despite twice the capacity.
- Expandable to about 11.3 kWh vs not expandable → the DJI grows with your needs; the DELTA stays at 2 kWh.
- Warranty 5 years vs 3 → on both, it runs out before the cycles, so it sets the useful life.
Which one to choose
Choose DJI Power 1000 V2 if…
you fill the battery from panels during the day and want to be able to expand it later: it starts at 1 kWh and grows to about 11.3 kWh with extra modules; 0 to 80% in about 37 minutes. It costs you half the base capacity, only two mains sockets and slower charging from the grid.
Choose EcoFlow DELTA 3 Max if…
you need a single 2 kWh unit with four mains sockets and peaks up to 4800 W, filled from the wall between one outage and the next. The price: it cannot be expanded, panels go in only up to 500 W, and it weighs 20.3 kg.
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.