Price range: $4,979 through $6,999
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The EcoFlow DELTA Pro Ultra Portable Solar Kit is designed for RV travelers, remote workers, food truck operators, overlanders, and professionals who need reliable off-grid power. With fast solar charging, rugged portability, and expandable capacity, it powers tools, appliances, AC units, laptops, and more—all without noisy generators.
At its core is the DELTA Pro Ultra, part of EcoFlow’s expandable ecosystem, delivering a base 6kWh capacity, expandable up to 90kWh with additional batteries. This kit is ideal for off-grid living, mobile job sites, or extended outdoor adventures.
Massive Off-Grid Power – Base 6kWh capacity, expandable to 90kWh.
Rugged, Long-Lasting Battery – Designed for over 10 years of daily use, up to 3,500 cycles.
Fast Solar Charging – 5.6kW solar input with included 400W EcoFlow Portable Solar Panels.
Smart Power Management – Control and monitor your system via the EcoFlow app and intuitive panel.
Versatile Kit – Powers everything from appliances and tools to laptops and AC units.
| DELTA Pro Ultra Inverter Model | EFYJ751-PCS-US |
| DELTA Pro Ultra Battery Model | EFYJ751-BP |
| Battery Capacity | 6,144Wh (6.144kWh), 102.4V⎓60A |
| Battery Chemistry | LFP |
| Cycle Life | 3,500 cycles to 80%+ SOH |
| Solar Panel Type | 400W Monocrystalline Silicone |
| Solar Panel Efficiency | 23% |
| Operating Temperature | −20°C to 45°C (−4°F to 113°F) |
| IP Protection Rating | IP54 |
| DELTA Pro Ultra Inverter Output | 7200W Max, 120V/240V~60Hz; Peak 10.8kW for 10s; Pure Sine |
| Ports | 4x AC 20A, 1x AC 30A, 1x NEMA L14-30, 2x USB-A, 2x USB-C, 1x DC, 1x Anderson DC, 1x Infinity Port |
| DELTA Pro Ultra Inverter Input | AC 100-120V~15A / 200-240V~12.5A; PV High 80-450V⎓15A max; PV Low 30-150V⎓15A max |
| Maximum Operating Altitude | 3000m / 9842.5ft |
| Noise Level | <30 dB |
| Wi-Fi / Bluetooth | Wi-Fi 2412–2462MHz / Bluetooth 2402–2480MHz |
| Weight (Battery) | 116.4 lbs / 52.7 kg |
| Weight (Inverter) | 69.9 lbs / 31.7 kg |
DELTA Pro Ultra Inverter Box
1 × DELTA Pro Ultra Inverter
1 × Portable Stand + 4 × Wheels
1 × Assembly/Disassembly Tool
1 × Solar Low-PV Charging Cable
1 × AC Charging Cable (C20)
1 × Quick-Start Guide
1 × Warranty Card
DELTA Pro Ultra Battery Box
1 × DELTA Pro Ultra Battery
1 × Inverter/Battery Connection Cable
1 × Safety Guide
1 × User Manual
1 × Warranty Card
400W Portable Solar Panel
1 × 400W Portable Solar Panel
1 × Protective Case & Kickstand
4 × Snap Hooks
1 × MC4 Solar Charging Cable (3.5M / 9.8ft)
DELTA Pro Ultra Trolley
1 × Trolley
Solar Extension Cables
2 × Solar Extension Cables (3m / 9.8ft each)
| 5 star | 0% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Sorry, no reviews match your current selections
The EcoFlow DELTA Pro Ultra Portable Solar Kit is designed for RV travelers, remote workers, food truck operators, overlanders, and professionals who need reliable off-grid power. With fast solar charging, rugged portability, and expandable capacity, it powers tools, appliances, AC units, laptops, and more—all without noisy generators.
At its core is the DELTA Pro Ultra, part of EcoFlow’s expandable ecosystem, delivering a base 6kWh capacity, expandable up to 90kWh with additional batteries. This kit is ideal for off-grid living, mobile job sites, or extended outdoor adventures.
Massive Off-Grid Power – Base 6kWh capacity, expandable to 90kWh.
Rugged, Long-Lasting Battery – Designed for over 10 years of daily use, up to 3,500 cycles.
Fast Solar Charging – 5.6kW solar input with included 400W EcoFlow Portable Solar Panels.
Smart Power Management – Control and monitor your system via the EcoFlow app and intuitive panel.
Versatile Kit – Powers everything from appliances and tools to laptops and AC units.
| DELTA Pro Ultra Inverter Model | EFYJ751-PCS-US |
| DELTA Pro Ultra Battery Model | EFYJ751-BP |
| Battery Capacity | 6,144Wh (6.144kWh), 102.4V⎓60A |
| Battery Chemistry | LFP |
| Cycle Life | 3,500 cycles to 80%+ SOH |
| Solar Panel Type | 400W Monocrystalline Silicone |
| Solar Panel Efficiency | 23% |
| Operating Temperature | −20°C to 45°C (−4°F to 113°F) |
| IP Protection Rating | IP54 |
| DELTA Pro Ultra Inverter Output | 7200W Max, 120V/240V~60Hz; Peak 10.8kW for 10s; Pure Sine |
| Ports | 4x AC 20A, 1x AC 30A, 1x NEMA L14-30, 2x USB-A, 2x USB-C, 1x DC, 1x Anderson DC, 1x Infinity Port |
| DELTA Pro Ultra Inverter Input | AC 100-120V~15A / 200-240V~12.5A; PV High 80-450V⎓15A max; PV Low 30-150V⎓15A max |
| Maximum Operating Altitude | 3000m / 9842.5ft |
| Noise Level | <30 dB |
| Wi-Fi / Bluetooth | Wi-Fi 2412–2462MHz / Bluetooth 2402–2480MHz |
| Weight (Battery) | 116.4 lbs / 52.7 kg |
| Weight (Inverter) | 69.9 lbs / 31.7 kg |
DELTA Pro Ultra Inverter Box
1 × DELTA Pro Ultra Inverter
1 × Portable Stand + 4 × Wheels
1 × Assembly/Disassembly Tool
1 × Solar Low-PV Charging Cable
1 × AC Charging Cable (C20)
1 × Quick-Start Guide
1 × Warranty Card
DELTA Pro Ultra Battery Box
1 × DELTA Pro Ultra Battery
1 × Inverter/Battery Connection Cable
1 × Safety Guide
1 × User Manual
1 × Warranty Card
400W Portable Solar Panel
1 × 400W Portable Solar Panel
1 × Protective Case & Kickstand
4 × Snap Hooks
1 × MC4 Solar Charging Cable (3.5M / 9.8ft)
DELTA Pro Ultra Trolley
1 × Trolley
Solar Extension Cables
2 × Solar Extension Cables (3m / 9.8ft each)
| 5 star | 0% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Sorry, no reviews match your current selections
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Reach us via email for assistance. Please allow up to 24 business hours for a response.
Chat live with a real member of our team for immediate product or order assistance.
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