Description
EcoFlow DELTA 2 Max + 400W Portable Solar Panel – ZPPMR350-US+400W
Features
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Fume-free, Quiet, Zero Maintenance
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World’s Fastest Recharging Methods
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Power up to 99% of Appliances
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Lightest 2400W LFP Solar Generator on the Market
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LFP Battery: 3000 cycles, 6× more than the industry average. Use every day for 10 years
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Large Expandable Capacity from 2048Wh to 6144Wh
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Plug and play home backup power
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Quiet Recharging
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Customized In-app Energy Management
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Ultra-Fast Home Backup Switchover Speed
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Multiple Levels of Protection for Safety and Reliability
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Compatible with EcoFlow Ecosystem Products
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Power Through Extended Blackouts
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5-Year Warranty
EcoFlow 400W Portable Solar Panel Features
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400W Solar Output
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23% High Conversion Rate
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Adjustable Angle Kickstand Case
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Easy to Plug and Unplug
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Waterproof and Durable
No fumes, No noise, No maintenance.
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Fume-free: since power stations don’t burn fuel, they don’t produce emissions or fumes, making them a clean and eco-friendly alternative to gas generators.
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Quiet: without internal noisy combustion engines, DELTA 2 Max is extremely quiet, even when charging.
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Maintenance-free: There’s no fuel to refill, no filters or fluids to change or mechanical parts that need constant maintenance.
World’s Fastest Recharging Methods
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Industry’s Fastest AC Recharging: Get an input of up to 1800W with X-Stream technology. Charge 0-80% in 68 min (1.1 hour)
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Industry’s Fastest AC + Solar Recharging: Charge to 80% in 43 min. Fully charge in about 1 hour.
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Harness Clean Solar Energy For Fast Charging:
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Fully charge with up to 1000W solar input in only 2.3 hours.
Power 99% of Essentials Industry-leading X-Boost Technology
A 2400W output powers up to 15 devices at once. Run some appliances with up to 3400W using X-Boost mode. That means during a power outage or blackout, you can continue to run your fridge, microwave, dryer, and more. Ideal power generator for backup power.
LFP Battery: 3000 cycles, 6× more than the industry average, for up to 10 years of everyday use
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Premium LFP cells for long-lasting battery life. Using the same chemical makeup as Tesla batteries, DELTA 2 Max gives you 3000 complete cycles till it’s down to 80% capacity. That’s 6× more than the industry average of 500.
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10 years of everyday use. If used once a day, it can be safely used for about 10 years.
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Advanced BMS protection. Self-regulates voltage, current, and temperature. Charge safely with comprehensive protection.
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Safe and stable for high performance even in warm temperatures.
Customized In-app Energy Management
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Save more on electricity bills: Prioritize the use of solar energy via the EcoFlow app when using AC + solar dual charging. Starts and ends at any time you want to save energy bills by avoiding peak rates.
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Experience peace of mind during power outages AC Always On Mode: power button stays on, even during a power outage or after the grid power is back, keeping appliances powered. Adjust energy sources to fit your needs: backup power reserve or energy savings.
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Lower battery power reminder: Get a notification via the app when the battery hits a low.
Ultra-fast home backup switchover – <30ms EPS auto-switch
When a blackout occurs, the power station automatically switches to the battery supply mode in less than 30ms. It ensures a constant power supply to your devices.
Multiple levels of protection for safe and reliable use
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Made from safe, robust materials and a sturdy one-piece design. It can withstand severe knocks and falls. Each port is reinforced to be resistant to wear and tear.
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The modular electronic components fit together seamlessly and can be easily removed from the unit for maintenance. All wires are copper-plated and polymer-wrapped for enhanced cooling, safety, and strength.
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Rubber anti-slip base.
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A shell of the highest fire-resistant rating, 5VA. Comes with a strengthened handle.
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The EcoFlow service team provides a 5 year warranty. Experience absolute peace of mind.
Compatible with EcoFlow ecosystem products
DELTA 2 Max is compatible with EcoFlow’s product ecosystem, providing a one-stop power solution for users. With the most comprehensive product ecosystem in the industry, power a new world using DELTA 2 Max, Extra Batteries, Portable Solar Panels, WAVE and WAVE 2 Portable Air Conditioners, Smart Generator and so much more…
Specifications
| Product Name | EcoFlow DELTA 2 Max | |
|---|---|---|
| Capacity | Expandable from 2048Wh to 6144Wh | |
| AC Input | US | X-Stream 1800W, 15A |
| Solar Input | 1000W Max, 11V-60V, 15A ; 500W per port | |
| AC Output (×6) | US | 2400W (Surge 4800W), X-Boost 3400W |
| 120V~ 50/60Hz | ||
| DC Output | 2×USB-A / 2×USB-A Fast Charging / 2×USB-C (100W) / 1×Car Power Outlet / 2×DC5521 | |
| Battery | LFP chemistry, 3000 cycles to >80% capacity | |
| Connection | Wi-Fi & Bluetooth | |
| Version | 100-120V: US, JP | |
| 220-240V: EU, CN, Intl, UK, AU, KR | ||
| Dimensions | 497×242×305 mm (19.6×9.5×12 in) | |
| Weight | 23 kg (50 lb) | |
| Model Name | EcoFlow 400W Portable Solar Panel | |
| Rated Power | 400W | |
| Cell Type | Monocrystalline Silicon | |
| Efficiency | 22.40% | |
| Dimensions | 42.0*94.1*1.0 in (106.8*239.0*2.4cm) | |
| Connector Type | Solar Connector | |
| Open Circuit Voltage | 48V (Vmp 41V) | |
| Short Circuit Current | 11A (Imp 9.8A) | |
| Weight (Solar Panel) | Approx. 35.3lbs (16.0Kg) | |
| Weight (with Kickstand Case) | Approx. 41.9 (19kg) |
Additional Information
What’s In The Box
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DELTA 2 Max
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AC Charging Cable
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Car Charging Cable
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DC5521 to DC5525 Cable
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User manual & warranty card
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400W Solar Panel
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Kickstand Case
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User Manual
Product Manuals
✓EcoFlow DELTA 2 Max User Manual
✓ EcoFlow 400W Portable Solar Panel Manual
Videos
What our Experts Think
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Portable & Powerful
DELTA 2 Max features a 2,048 Wh LFP battery and 2,400 W continuous AC output (up to 4,800 W surge), sufficient for most home appliances and tools. -
Fast Solar Charging
Supports up to 1,000 W solar input, allowing full recharge in roughly 2–3 hours under ideal sunlight, ideal for off-grid, backup, or outdoor use. -
Expandable Capacity
Can expand from ~2 kWh up to ~6 kWh with additional modules, offering flexibility for growing energy needs. -
Durable LFP Battery
Lithium Iron Phosphate cells provide ~3,000 cycles to 80% capacity, ensuring long-lasting, reliable performance. -
Smart & User-Friendly
Includes app control, real-time monitoring of inputs/outputs, and UPS functionality for uninterrupted power to critical devices. -
Versatile Applications
Suitable for outdoor adventures (RV, camping), mobile workstations, and home backup for essential loads like refrigerators, routers, and lights.
Q&A
Q: What is the EcoFlow DELTA 2 Max + 400W Portable Solar Panel?
A: A portable power station bundle including the DELTA 2 Max and a 400W foldable solar panel, providing clean, renewable energy for outdoor adventures, emergencies, and off-grid use.
Q: What is the total energy capacity?
A: The DELTA 2 Max delivers up to 2 kWh of battery capacity, supporting extended operation of appliances, electronics, and tools.
Q: What are the main benefits of this bundle?
A: Portable, renewable, and modular energy—fast solar charging, AC/DC/USB outputs, and the flexibility to power devices anywhere, anytime.
Q: Is the solar panel included compatible with the DELTA 2 Max?
A: Yes—the 400W foldable solar panel is fully compatible, enabling efficient solar recharging and off-grid operation.
Q: Where is this product best used?
A: Ideal for camping, RV trips, outdoor events, emergency preparedness, and off-grid living, offering clean, reliable, and portable energy.
Maintenance Tips
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Charge Regularly: Keep the DELTA 2 Max battery between 20%–80% charged for optimal lifespan; avoid prolonged full discharges.
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Store Properly: Store both the inverter and solar panel in a cool, dry, and ventilated area, away from direct sunlight or moisture when not in use.
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Clean Solar Panels: Wipe panels with a soft, damp cloth to remove dust, debris, or bird droppings; avoid abrasive cleaners or scrapers.
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Inspect Cables & Connectors: Check all cables, plugs, and terminals for damage or debris before each use.
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Firmware Updates: Keep the DELTA 2 Max firmware updated via the EcoFlow app for optimal performance and safety.
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Protect from Extreme Conditions: Avoid exposure to heavy rain, snow, or extreme temperatures to preserve battery and solar panel lifespan.
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Safe Handling & Transport: Fold and store panels carefully; handle the inverter and cables gently to prevent damage.






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