EcoFlow DELTA 3 Classic vs EcoFlow DELTA 3 Plus
Technical comparison · Home backup
Same capacity, 1.024 kWh, and same continuous output: the DELTA 3 Plus stands out for what can be added and plugged in, not for the base battery. Anyone using it as a portable reserve may not need it (manufacturer-declared values).
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.024 kWh | 1.024 kWh |
| Continuous output | 1800 W | 1800 W |
| Peak output | 3000 W | 3600 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 584.96 €/kWh | 750.98 €/kWh |
| List price | 599 € | 769 € |
| Weight | 12.1 kg | 12.5 kg |
| Dimensions (W×D×H) | 39.8 × 20 × 28.3 cm | 39.76 × 28.36 × 20.2 cm |
| Outlets | ||
| AC outlets | Yes (×3) | — |
| USB-C ports | Yes (×2) | — |
| USB-A ports | Yes | — |
| 12 V outputs | No | — |
| How long it lasts | ||
| Battery life cycles | 1095 cicli | 1825 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 | 3 anni | 5 anni |
| The numbers | ||
| Cost of stored energy | 0.534 €/kWh | 0.411 €/kWh |
| Energy density | 84.6 Wh/kg | 81.9 Wh/kg |
| Power-to-capacity ratio | 1.76 C | 1.76 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | ~450–1000 € | ~450–1000 € |
| Category specs | ||
| Expandable | — | Yes |
| Maximum expanded capacity | — | 5 kWh |
| Fastest USB-C | 100 W | 140 W |
| Maximum charge power | 1.4 kW | 1.5 kW |
| 0–80% charge time | 60 min | — |
| Maximum solar input | 500 W | 1000 W |
| Backup power | UPS | UPS |
| Switchover time | 10 ms | 10 ms |
| Mounting | Portable | Portable |
| Minimum temperature | -10 °C | — |
| Maximum temperature | 45 °C | — |
The differences that matter
- Solar input 500 W against 1000 W → beyond 500 W of panels the Classic uses nothing more; the Plus takes up to 1000 W.
- Expandable up to 5 kWh (Plus) → capacity can grow beyond 1.024 kWh without changing unit.
- Peak output 3000 W against 3600 W → more headroom for loads with a sharp start-up, at the same continuous output.
- Warranty 3 years against 5, declared cycles 4000 (Plus) → on both the warranty ends first: years count, not cycles.
Which one to choose
Choose EcoFlow DELTA 3 Classic if…
you use the unit as a portable reserve and its fittings are enough: three AC sockets, two USB-C and one USB-A, and a declared 0–80 % charge in 60 minutes. It works from −10 to 45 °C. The trade-off: there is no 12 V output, and solar input, warranty and peak output stay lower.
Choose EcoFlow DELTA 3 Plus if…
you want room to grow and more solar panels; its USB-C reaches 140 W against the other's 100 W and maximum charge power 1.5 kW against 1.4. The trade-off: base capacity and continuous output are the Classic's, so anyone who will not use solar, expansion or the longer warranty gets neither more runtime nor more output power.
Where to buy
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