Portable Power Stations / EcoFlow
EcoFlow DELTA Pro 3
4kWh, 240V output and 48kWh of expansion — genuine whole-home backup.
Overall score 8.5/10
Pros
- + 240V output through an L14-30R means it can genuinely back-feed a house transfer switch, which almost nothing else here can
- + Expandable to 48kWh as a full system — this is whole-home territory
- + 2,600W of solar input across dual MPPT
- + Its price has fallen roughly $900 from launch
Cons
- − 113.5lb — it has wheels for a reason, and it is not going camping
- − The 6,000W X-Boost figure is voltage reduction, not true surge
- − Only two USB-C and two USB-A ports on a station this size
- − Full system expansion runs into five figures quickly
EcoFlow DELTA Pro 3 review: what the specs say
4kWh, 240V output and 48kWh of expansion — genuine whole-home backup. At $2,799, EcoFlow's 2024 model sits at the premium end of the category — the portable Power Stations we compare run from $249 to $4,799. It scores 8.5/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Output Power at 9.8/10 — continuous AC output and whether the surge rating is genuine. The weakest is Portability at 2.5/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: 113.5lb — it has wheels for a reason, and it is not going camping; and the 6,000W X-Boost figure is voltage reduction, not true surge. Every specification on this page comes from EcoFlow's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| Capacity | 4096 Wh |
| AC Output | 4,000 continuous, 6,000 with X-Boost W |
| Surge Output | 8000 |
| Battery Chemistry | LiFePO4 |
| Cycle Life | 4,000 cycles to 80% capacity |
| AC Outlets | 6, including TT-30R, 6-20R and L14-30R 240V |
| Other Ports | 2x USB-C, 2x USB-A, 1x 30A Anderson, 1x DC5221 |
| Max Solar Input | 2,600 across dual MPPT |
| AC Recharge Time | About 50 to 80% |
| Weight | 113.5 lbs |
| Expandable | Yes — to 12kWh directly, or 48kWh as a full system |
| UPS Switchover | Yes — 10ms |
| App Control | Yes — Wi-Fi, Bluetooth and CAN |
| Connectivity | 6x AC outlets including 240V TT-30R, 6-20R and L14-30R, 2x USB-C, 2x USB-A, 30A Anderson, DC5221 |
| Material | Plastic with telescoping handle and wheels |
| Warranty | 24 months |
Compare EcoFlow DELTA Pro 3 With
Cheaper Alternative
Goal Zero Yeti 1500 (6th Gen) — $1499.95
Premium Alternative
Anker SOLIX F3800 Plus — $4799.00