EcoFlow DELTA 2 vs EcoFlow DELTA 3 Plus
Mid-size (500–1,500Wh) · spec-by-spec, winner marked per row
Verdict
On paper these two overlap almost completely. The differences that matter take some digging, so we did the digging.
What the EcoFlow DELTA 3 Plus brings: 10ms UPS switchover (safe for desktop PCs) and expandability to 5,000 Wh.
Our take: the EcoFlow DELTA 3 Plus wins on 10ms UPS switchover (safe for desktop PCs) and expandability to 5,000 Wh.
Side-by-side specifications
✓ marks the better number in each row (EcoFlow DELTA 2: 2 wins · EcoFlow DELTA 3 Plus: 7 wins — but weigh the rows that matter for your use, not the count).
| EcoFlow DELTA 2 | EcoFlow DELTA 3 Plus | |
|---|---|---|
| Battery capacity | 1,024 Wh | 1,024 Wh |
| Battery chemistry | LiFePO4 | LiFePO4 |
| Cycle life (to 80%) | 3,000 | 4,000 ✓ |
| AC output (continuous) | 1,800 W | 1,800 W |
| AC output (surge) | 2,700 W | 3,600 W ✓ |
| 240V output | No | No |
| Max solar input | 500 W | 500 W |
| Solar voltage window | 11-60V | 11-60V |
| Max USB-C power | 100 W | 140 W ✓ |
| AC recharge 0–80% | 50 min | 40 min ✓ |
| UPS switchover | 30 ms | 10 ms ✓ |
| Expandable | to 3,040 Wh | to 5,000 Wh ✓ |
| Weight | 12.2 kg ✓ | 12.5 kg |
| Energy density | 84 Wh/kg ✓ | 82 Wh/kg |
| Launch price | $999 | $899 |
| Value (launch $/Wh) | $0.98 | $0.88 ✓ |