EcoFlow DELTA 2 vs Jackery Explorer 3000 v2
Technical comparison · Home backup
Two LFP home power stations of different size: about 1 kWh against about 3 kWh. The DELTA 2 can be expanded and the Jackery cannot, so the choice is between starting small and growing, or buying the capacity you need up front (manufacturer-declared values).
| Parameter | ||
|---|---|---|
| Awards | — | |
| In brief | ||
| Nominal capacity | 1.024 kWh | 3.072 kWh |
| Continuous output | 1800 W | 3600 W |
| Peak output | 2700 W | 7200 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 584.96 €/kWh | 813.48 €/kWh |
| List price | 599 € | 2499 € |
| Weight | 12 kg | 27 kg |
| Outlets | ||
| AC outlets | Yes (×4) | Yes (×3) |
| 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 | 4000 cicli |
| Capacity at end of cycle life | 80 % | 70 % |
| Warranty | 5 anni | 3 anni |
| The numbers | ||
| Cost of stored energy | 0.321 €/kWh | 0.743 €/kWh |
| Energy density | 85.3 Wh/kg | 113.8 Wh/kg |
| Power-to-capacity ratio | 1.76 C | 1.17 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F3 — Flat-sized (3–8 kWh) |
| Price | ||
| Price | — | 1481 € |
| Universal specs | ||
| Voltage | 220 V | — |
| Category specs | ||
| Expandable | Yes | No |
| Fastest USB-C | 100 W | 100 W |
| Maximum charge power | 1.2 kW | — |
| Maximum solar input | 500 W | 1000 W |
| Backup power | EPS (brief interruption) | UPS |
| Switchover time | 30 ms | 20 ms |
| Mounting | Portable | Portable |
| Minimum temperature | -10 °C | — |
| Maximum temperature | 45 °C | — |
| Noise level | — | 27 dB |
| Declared standards | — | UN 38.3, CE |
JouleSpecs Awards
No awards in this tier.
Best value Flat-sized (3–8 kWh)
Best balance of technical score and price among the 3 sheets in the Home backup category (flat-sized tier): list price €1481, technical score 50/100.
How we assign awards →The differences that matter
- Capacity and weight, 1.024 kWh and 12 kg vs 3.072 kWh and 27 kg → three times the energy for a little over twice the weight.
- Continuous and peak output, 1,800 and 2,700 W vs 3,600 and 7,200 W → the Jackery carries twice the continuous load and more than twice the peak.
- Expandable, yes vs no → the DELTA 2 can grow after purchase; the Jackery stays as it is.
- Backup, EPS with a pause (30 ms) vs UPS (20 ms) → in a power cut the Jackery moves to battery in continuity mode, the DELTA 2 with a short pause.
Which one to choose
Choose EcoFlow DELTA 2 if…
you want to start with a store you can move by hand (four mains sockets) and add capacity later if needs grow, and you prefer a five-year warranty to three. The compromise: on the base battery alone a heavy load drains it quickly, and the solar input is lower.
Choose Jackery Explorer 3000 v2 if…
you already know what you need and want a single 3 kWh block, with solar input up to 1,000 W and a fan declared at 27 dB. You accept that it cannot be expanded, three mains sockets instead of four and a shorter warranty.
Where to buy
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