Growatt Infinity 1500 vs EcoFlow DELTA 3 Plus: Expandable vs Compact 2026
Short answer: The Growatt Infinity 1500 ($599) is expandable (chain 3 units) and has 2,000W continuous with EPS under 20ms. The EcoFlow DELTA 3 Plus ($599) has better surge (3,600W vs 4,000W wait — EcoFlow wins), verified UPS under 30ms, and better ecosystem. Same price, different strengths. EcoFlow for reliability, Growatt for expandability.
| Spec | Growatt Infinity 1500 | EcoFlow DELTA 3 Plus |
|---|---|---|
| Capacity | 1,512Wh ✓ | 1,024Wh |
| Output | 2,000W | 1,800W |
| Surge | 4,000W | 3,600W |
| UPS/EPS | <20ms | <30ms ✓ verified |
| Expandable | 3 units ✓ | No |
| Battery | NMC | LFP ✓ |
| Warranty | 2 years | 5 years ✓ |
| Price | $599 | $599 |
CDL Verdict
| Home Backup | EcoFlow DELTA 3 Plus |
| RV / Outdoors | EcoFlow DELTA 3 Plus |
| Best Value | EcoFlow DELTA 3 Plus |
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