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Ecoflow Delta 3 Max Powerstation with 400W Solar Panel
Item Code: EFD3M-400W
Ship Weight: 88 lbs.
Regular Price: $2,698.00
Sale Price: $1,209.00
You Save 55% ($1,489.00)

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Product Details
The EcoFlow Delta 3 Max Powerstation with 400W Solar Panel is the latest and most advanced addition to EcoFlow's trusted line of portable backup power solutions. Delivering a powerful 2400W AC rated output and supporting devices up to 3400W with X-Boost 3.0 technology, it ensures reliable performance for everything from home appliances to sensitive electronics. Its high-precision DSP chip samples AC voltage and current every 33 microseconds, producing a pure sine wave output with grid-level stability. With 4 versatile charging options, it can reach 0 to 80% charge in just 68 minutes. Paired with a high efficiency 400W foldable solar panel, one of the most powerful and portable on the market, this setup is perfect for outdoor adventurers. The panel weighs only 27 pounds and features a built-in shoulder strap, making it easy to carry and an ideal companion for any EcoFlow Powerstation.
Delta 3 Max Power Station Key Features:

2400W Output - Powerful. Stable. Built to Handle It All:

4 Ways to Charge Up - Ready in Just 68 Mins (with remote charging control for added peace of mind):

Long-Lasting, Durable, Always Ready for Emergencies:

Built to Last with Quality Components:

Compact, Portable, Lighter than Ever - Works Anywhere:

Deeper Insights, Easier Control:

Intelligent Solar Power:

Robust & Weatherproof:

Self-Supporting:

Wide-ranging Compatibility:
Smart Solar Energy:

Delta 3 Max Power Station Key Features:
• | X-Boost: Features a 2400W Powerful Output (4800W surge). With X-Boost mode, it supports heavy-duty appliances up to 3400W such as refrigerators, coffee makers, washers, and circular saws. |
• | Features 4 Ways to Charge, Ready in Just 68 Mins: Ready in 68 mins (0-80%) with Wall Charging or Generator Charging. |
• | Lightweight and Easy to Carry! Weighing just 20.3 kg, 13% lighter than the previous generation 2kWh product. |
• | Long-Lasting, Durable, and Reliable: Equipped with automotive-grade full-tab LFP cells, offering 10 years of reliable power, 24/7 protection BMS, and EV-grade CTC structure that protects against overnight condensation and off-road bumps during transport. |
• | 10ms Auto-Switch: Fast enough to keep critical devices like NAS systems and servers running smoothly. |
• | 25dB Whisper-Quiet Operation: Ultra-low noise (≤25dB at 600W). |
• | OASIS 3.0 Smart App Control: Dashboard to monitor real-time battery status, electricity prices, and savings. Storm Guard Mode automatically activates backup power before extreme weather hits. Self-Powered Mode and Scheduled Tasks save you money daily. |
• | 5-Year Warranty: Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration. |

• | The EcoFlow Delta 3 Max delivers 2400W AC rated output. With X-Boost 3.0 technology, it supports devices up to 3400W - effortlessly taking on your heavy-duty appliances. The inverter samples AC voltage and current every 33μs with high precision using a DSP chip, ensuring pure sine wave output with beyond grid-level stability - ideal for powering sensitive electronics reliably. |

• | You can charge from a normal wall outlet at a super fast 1800W input (0-80% in 68 minutes). EcoFlow’s exclusive Storm Guard Mode monitors severe weather alerts and automatically triggers AC charging remotely using industry-leading X-Stream fast charging tech - so it can be ready long before a disaster hits. |
• | With the ability to recharge from fuel generators such as gas and propane units @ an 1800W input, recharge to 80% in just 68 mins. The EcoFlow Smart Generator 4000 (Dual Fuel) powers up the Delta 3 Max for storms, outages, and off-grid living. |
• | Solar recharging is an obvious choice for this all new powerstation. Features a 500W Input, at max input charge from 0-80% in 3.43 hours. Pair it with EcoFlow Solar Panels (25% high-efficiency) for reliable power during camping trips, van life, or off-grid living. We would recommend 2x EcoFlow NextGen 220W Portable Solar Panels! |
• | Charging from a vehicle's Alternator is a fantastic alternative as well! With the EcoFlow designed 500W Alternator Charger, get a fast recharge while on the go! |

• | The Automotive-Grade Full-Tab LFP Cells paired with the rugged exterior and intelligent BMS create a unit with unmatched reliability. |

• | From battery chemistry to structural design, the Delta 3 Max is engineered for extreme durability, environmental resilience, and whisper-quiet performance. |
• | Built with a cell-to-chassis (CTC) structure, the Delta 3 Max is drop-resistant and shockproof - protecting against overnight condensation and off-road bumps during transport. You get stable power even in the most demanding conditions. |
• | The Delta 3 Max keeps your power flowing through freezing cold, scorching heat, humid environments (95% humidity tolerance), or coastal air - for reliable energy anytime, anywhere. |
• | Certified to Class B EMC standards, it won’t interfere with TVs, Wi-Fi, or other home electronics. |
• | Powered by X-Quiet 3.0, EcoFlow’s stepless fan control adjusts airflow smoothly to maintain precise thermal regulation - keeping your home or workspace peacefully quiet, even under heavy loads. |

• | Lightweight and easy to carry, the Delta 3 Max fits into any setting - from home to the great outdoors. Weighing just 20.3 kg, it’s 13% lighter for effortless portability while still packing serious power. |

• | Monitor your energy usage and solar generation - all with one intuitive dashboard. Set timed charging/discharging missions so that you can charge during off-peak hours, discharge during peak rate periods to save costs. |

• | The EcoFlow 400W Solar Panel is designed to produce maximum power at any time of the day when paired with an EcoFlow power station. |
• | The solar panel has a high conversion efficiency of up to 23%, and the EcoFlow MPPT power station algorithm delivers improved performance in cold and cloudy environments within the operation range. |

• | Made from layers of pliable EVA and durable fiberglass to combine the versatility of flexible solar panels with the strength of rigid ones. Each monocrystalline silicon cell is covered with ETFE film, protecting against debris, dirt, and water. |
• | Features a IP67 waterproof rating, the portable solar panel works in all kinds of weather, perfect for both camping and rooftop use. |

• | The protective case conveniently turns into a stand that adjusts from 40-90 degrees, allowing the solar panels to capture the most rays. |

• | Uses the universally recognized MC4 connector, making it compatible with all EcoFlow Delta Series portable power stations and many other third-party generators. |
• | The EcoFlow 400W solar panel has a conversion efficiency of 22.4%, and when paired with an EcoFlow portable solar generator, can extract the most power throughout the day. |
• | The solar generator adjusts its efficiency using the Maximum Power Point Tracking (MPPT) algorithm, to deliver a constant power supply. |

Specifications
General Information | |
Manufacturer Name: | EcoFlow |
Dimensions: | 19.44" x 9.4" x 12" in |
Weight: | 46 lbs |
Cell Chemistry: | LFP (LiFePO4) |
Rated Capacity: | 2048Wh 51.2V 40Ah |
Warranty: | 5 Year Warranty |
Charge Temperature: | 0C-45C (32F-113F) |
Discharge Temperature: | -10 to 45C (14F-113F) |
Operating Humidity: | 20%-95% |
Communication Method: | Wifi 2.4GHz/ Bluetooth 5.0 |
EMC: | Class B |
UPS: | 10ms | Output |
AC Output: | 120V 60Hz 2400W total, 20A (x4) Max per |
X-Boost: | 3400W |
USB-A Output: | USB-A (x1): 5V-3A/9V-2A/12V-1.5A, 18W Max |
USB-C Output: | USB-C (x1): 5/9/12/15V-3A,20V--5A, 100W Max USB-C (x2): 5/9V-3A, 15V-2A,30W Max per port, total 30W |
Cigarette Lighter Output Port: | 12.6V, 10A, 126W Max | Input |
AC Input (Charge Only): | 100-120V - 15A 50/60Hz |
Maximum PV Input Power(W): | 500W | 400W Solar Panel |
Manufacturer Name: | EcoFlow |
Chainable: | Yes |
Dimensions: | 42" x 94.1" x 1.0" in (106.8 x 239 x 2.4cm) |
Weight: | Solar Panel: 35.3 lbs (16 Kg) with Kickstand Case: 41.90 lbs / 19 kg |
Rated Power: | 400W |
Efficiency: | 22.4% |
Connector: | MC4 |
Open Circuit Voltage: | 48V (Vmp 41V) |
Short Circuit Voltage: | 11A (Imp 9.8A) |
Cell Type: | Monocrystalline Silicon |
Warranty: | 12 Month Manufacturer Warranty |
What's Included
What's Included:
• (1) EcoFlow Delta 3 Max Power Station in Gray
• (1) AC Charging Cable
• (1) 400 Watt Solar Panel
• (1) Kickstand Case
• (1) MC4 to XT60 Cable
• (1) Warranty Card
• (1) User Manual
• (1) EcoFlow Delta 3 Max Power Station in Gray
• (1) AC Charging Cable
• (1) 400 Watt Solar Panel
• (1) Kickstand Case
• (1) MC4 to XT60 Cable
• (1) Warranty Card
• (1) User Manual
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