EcoFlow DELTA Pro Ultra X Smart Transfer Kit
The EcoFlow DELTA Pro Ultra X Smart Transfer Kit stores 12,000 Wh. At $9,799 it costs $0.82 per Wh, rank 12 of 17 stations in its size class.
Store prices and availability
| Store | Price | $/Wh | Condition | Stock | Action |
|---|---|---|---|---|---|
| EcoFlow Store | $9,799 | $0.82 | New | In stock | Buy at EcoFlow Store |
| Amazon | price not checked | New | Out of stock | Check price on Amazon |
Verified specifications for EcoFlow DELTA Pro Ultra X Smart Transfer Kit
| Group | Specification | Verified value | Primary source |
|---|---|---|---|
| Capacity & output | Rated battery capacity | 12,000 Wh | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Capacity & output | Continuous AC output | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Capacity & output | Peak surge AC output | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Capacity & output | Resistive boost mode | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Capacity & output | UPS switchover time | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Battery | Cell chemistry | LiFePO4 | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Battery | Rated cycle life | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Battery | Expandable capacity | No | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Charging | Max solar input | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Charging | Solar voltage (Voc) range | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Charging | Max AC wall charge rate | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Ports | AC outlets | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Ports | USB-C ports (max per port) | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Ports | USB-A ports | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Ports | 12V / DC output ports | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Physical | Weight | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Physical | Energy density by weight | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Warranty | Standard manufacturer warranty | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Certifications | UL 2743 safety claim | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
| Certifications | Additional safety certifications | not stated | Source:EcoFlow official specification sheet(checked 2026-11-06) |
What EcoFlow DELTA Pro Ultra X Smart Transfer Kit runs on a single charge
Runtime estimates below use our portable power station runtime calculator at 85% usable AC capacity across four reference loads from data/appliances.json.
| Appliance load | Reference draw | Estimated runtime | Notes |
|---|---|---|---|
| Full-size refrigerator (cycling) | 1.5 kWh/day (62.5 W average cycling draw, U.S. DOE) | 163.2 hours | About 6.8 days at 85% usable AC capacity |
| CPAP without heated humidifier | 11 W continuous (ResMed AirSense 10 Battery Guide) | 927.3 hours | About 115.9 eight-hour nights |
| Wi-Fi router + laptop computer | 60 W combined (10 W router + 50 W laptop, Penn State EME 807) | 170.0 hours | Continuous remote-work load at 85% usable AC capacity |
| Portable electric space heater (high) | 1,500 W resistive heat (Penn State EME 807) | 6.8 hours | Exceeds continuous AC rating (not stated); would drain 12,000 Wh in 6.8 hours |
Lifetime energy delivery and cost per lifetime kWh
EcoFlow does not state a complete cycle count and capacity retention percentage pair on the official product specification page for the DELTA Pro Ultra X Smart Transfer Kit, so lifetime deliverable kilowatt-hours and cost per lifetime kWh are shown as not stated. Read the exact linear capacity fade formula on our methodology page.
Closest alternatives in the 5,000 Wh and up capacity class
| $/Wh | Price | Capacity | AC output | Chemistry | Product |
|---|---|---|---|---|---|
| $0.17 | $1,029 | 6,144 Wh | not stated | LiFePO4 | EcoFlow DELTA 2 Max Portable Power Station |
| $0.26 | $1,579 | 6,144 Wh | not stated | LiFePO4 | EcoFlow DELTA 2 Max Solar Generator |
| $0.47 | $2,399 | 5,120 Wh | 7,200 W | LiFePO4 | Pecron F5000LFP Portable Power Station 7200W 5120Wh 120V/240V Pre-Order |
| $0.56 | $2,899 | 5,222 Wh | 7,200 W | LiFePO4 | FOSSiBOT F7200 Portable Power Station - 5222.4Wh |
Compare EcoFlow DELTA Pro Ultra X Smart Transfer Kit across brand, capacity, and use-case tables
- Brand lineup: All EcoFlow portable power stations compared by $/Wh
- Capacity class: Portable power stations (5,000 Wh and up)
- Interactive sizing: Run EcoFlow DELTA Pro Ultra X Smart Transfer Kit in the appliance runtime calculator
- Use-case comparison: Best portable power stations for CPAP machines
- Use-case comparison: Best portable power stations for camping
- Use-case comparison: Best portable power stations for refrigerators
- Use-case comparison: Best portable power stations for apartments
- Use-case comparison: Best portable power stations for home backup
- Data correction: Report a data error on EcoFlow DELTA Pro Ultra X Smart Transfer Kit