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ecoflow
EcoFlow DELTA Pro 3
9.3/10 Excellent
EcoFlow DELTA Pro 3 review. 4,096Wh LiFePO4, 4,000W output, expandable to 48kWh, 120/240V, IP65. Real-world testing for home backup, off-grid cabins, and emergencies.
$3,699
Check Price on EcoFlow $3,999
Save $300
Last updated: 2026-04-08
Score Breakdown
Power 9.8/10
Portability 5.0/10
Value 8.5/10
Features 9.5/10
Build Quality 9.5/10
Pros & Cons
What We Like
- 4,096Wh capacity expandable to a massive 48kWh for whole-home backup
- 120V/240V dual-voltage output runs 3-ton central AC and heavy loads
- 2,600W solar input is among the highest in its class
- IP65-rated automotive-grade CTC battery pack for durability
- 7 AC outlets and 30 dB quiet operation under 2,000W
Watch Out For
- 113 lbs — requires wheels and is not portable by one person
- Premium $3,699+ price point puts it in prosumer territory
- 2.7-hour 0-80% AC charge is slower than DELTA 3 series
- Massive footprint requires dedicated storage space
Full Specifications
| Capacity | 4,096Wh |
| AC Output | 4,000W |
| Surge Output | 8,000W |
| Weight | 113lbs |
| Dimensions | 27.2 x 13.4 x 16.1 in |
| Battery Type | LiFePO4 |
| Cycle Life | 4,000 cycles |
| AC Charge Time | 2.7 hrs (0-80%) |
| Max Solar Input | 2600W |
| AC Outlets | 7 |
| USB-C Ports | 2 |
| USB-A Ports | 2 |
| DC Outlets | 2 |
| Expandable | Yes |
| Max Expanded | 48,000Wh |
| Operating Temp | 32-113°F |
| Warranty | 5 years |
| IP Rating | IP65 |
| App Control | Yes |
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