EcoFlow DELTA 3 1500 vs EcoFlow DELTA 3 Max Plus
Technical comparison · Home backup
Same family, same job, two temperaments: the DELTA 3 1500 has better protection against dust and splashes and is noisier; the Max Plus is more powerful and quieter. All figures are manufacturer-declared.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.536 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 | 845.7 €/kWh | 731.93 €/kWh |
| List price | 1299 € | 1499 € |
| Weight | — | 22.1 kg |
| Dimensions (W×D×H) | 21.3 × 39.8 × 28.15 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 | 3000 cicli | — |
| Capacity at end of cycle life | 70 % | — |
| Warranty | 5 anni | 3 anni |
| The numbers | ||
| Cost of stored energy | 0.463 €/kWh | 0.668 €/kWh |
| Energy density | — | 92.7 Wh/kg |
| Power-to-capacity ratio | 1.17 C | 1.46 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F2 — Room-sized (1–3 kWh) |
| Price | ||
| Price | 1299 € | ~1000–2200 € |
| Category specs | ||
| Expandable | Yes | Yes |
| Maximum expanded capacity | 5.5 kWh | 10 kWh |
| Fastest USB-C | 100 W | 140 W |
| Maximum charge power | 1.5 kW | 2.3 kW |
| 0–80% charge time | 60 min | 68 min |
| Maximum solar input | 500 W | 1000 W |
| Backup power | UPS | UPS |
| Switchover time | 15 ms | 10 ms |
| Ingress protection | IP54 | IP20 |
| Mounting | Portable | Portable |
| Minimum temperature | — | -10 °C |
| Maximum temperature | — | 45 °C |
| Noise level | 45 dB | 25 dB |
The differences that matter
- Ingress protection, IP54 vs IP20 → the DELTA 3 1500 tolerates dust and splashes; the Max Plus belongs in a dry indoor room.
- Noise, 45 dB vs 25 dB → the Max Plus is far quieter in a room where people live or sleep.
- Continuous output, 1800 W vs 3000 W (peak 3600 W vs 6000 W) → the Max Plus carries more loads together.
- Solar input, 500 W vs 1000 W → in theory about 3 h of full sun to fill the 1500 against about 2 h for the Max Plus.
Which one to choose
Choose EcoFlow DELTA 3 1500 if…
you use it in a garage, a workshop or a room where dust is a fact of life, and want 5 years of warranty against 3 for daily use. The trade-off is a declared switchover of 15 ms against 10 ms, and less energy.
Choose EcoFlow DELTA 3 Max Plus if…
you keep it indoors and want more capacity: 2.048 kWh against 1.536 kWh, expandable to 10 kWh against 5.5 kWh. The trade-off is lower protection and a shorter warranty.
Where to buy
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