EcoFlow DELTA 2 vs EcoFlow DELTA 3 Plus
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The EcoFlow DELTA 2 is discontinued. EcoFlow no longer sells it on its US store; Amazon may still have remaining or renewed stock.
Our verdict
The DELTA 3 Plus is the DELTA 2’s successor, and on paper it’s better almost everywhere at the same 1,024 Wh size. It’s rated for 4,000 cycles instead of 3,000, takes twice the solar input (1,000 W vs 500 W), recharges from the wall in about 56 minutes instead of 80, adds 140 W USB-C, and expands to about 5 kWh instead of about 3 kWh. Its higher surge rating (3,600 W vs 2,700 W) also helps with fridges and pumps.
Both deliver 1,800 W continuous, have six AC outlets and weigh about 27 lb. EcoFlow no longer sells the DELTA 2 on its US store, so only buy one at a clear discount (for example a renewed unit) and only if you don’t need the extra solar input or expansion. For everyone else, the DELTA 3 Plus is the one to get.
Based on manufacturer specs and list prices checked Oct 11, 2026.
Where the EcoFlow DELTA 2 wins
No clear spec advantage.
Where the EcoFlow DELTA 3 Plus wins
- Higher surge for motor start-ups (3,600 vs 2,700 W)
- Faster solar charging (1,000 vs 500 W input)
- More rated cycles (4,000 vs 3,000)
- Faster wall charging (56 vs 80 min)
- Expandable to 5,000 Wh (vs 3,040 Wh)
Spec by spec
| Spec | EcoFlow DELTA 2 | EcoFlow DELTA 3 Plus |
|---|---|---|
| Battery capacity | 1,024 Wh | 1,024 Wh |
| Continuous AC output | 1,800 W | 1,800 W |
| Surge / peak output | 2,700 W | 3,600 W (better) |
| Battery chemistry | LiFePO4 | LiFePO4 |
| Rated charge cycles | 3,000 | 4,000 (better) |
| Lifetime energy (capacity × cycles) | 3,072 kWh | 4,096 kWh (better) |
| Weight | 27 lb (better) | 27.6 lb |
| Energy per pound | 37.9 Wh/lb (better) | 37.1 Wh/lb |
| AC outlets | 6 | 6 |
| Max USB-C output | 100 W | 140 W (better) |
| Max solar input | 500 W | 1,000 W (better) |
| Wall charge to 100% | 80 min | 56 min (better) |
| Expandable to | 3,040 Wh | 5,000 Wh (better) |
| List price at maker | — | $799 |
| Runs a full-size fridge | 16.6 h | 16.6 h |
| CPAP nights (40 W, 8 h) | 2 | 2 |
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