





EcoFlow Delta 2 Max + 400W Solar Panel
EcoFlow Delta 2 Max + 400W Solar Panel
Description
• Expandable capacity: 2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to hit a capacity of 6144Wh. Ideal for home backup, RVing, outdoors or even everyday use.
• Built to last 6× longer: Get 10 years of daily use until hitting 80% of its original capacity. That's down to its LFP battery chemistry giving you 3000+ cycles.
• Huge AC output: With X-Boost mode, get up to 3400W output power to run 99% of home appliances. Power 15 devices at once, including 6 AC outlets.
• Fastest recharging: World's fastest AC recharging and X-Stream dual AC+Solar charging speeds. Up to 1000W solar input to charge in as fast as 2.3 hours.
• Capture more energy: 99% MPPT efficiency maximizes solar generation during the daytime.
• High conversion efficiency rating - guarantees a faster solar charging speed. 0-100% in 2.8 hours (2 sets) or 0-100 in 5.4 hours (1 set).
• Customized in-app energy management: Prioritize solar or AC charging, view input and output power, battery levels and more.
• 5-Year warranty: 5 years for DELTA 2 Max, 12 months for 400W Solar Panel.

400W Portable Solar Panels. Our 400W portable solar panel offers high solar output, conversion efficiency rating, and a convenient folding design so it’s ready to grab and go at any time.
10-Year Long-lasting LFP Battery - With its upgraded LFP battery chemistry, DELTA 2 Max has a lifespan of 3000 complete cycles until it reduces to 80% capacity. You'll get pretty much 10 years of power, even if you use it every day. That's 6× longer than other power stations with a similar capacity and output.
LFP Battery Chemistry - That's 6× longer than other power stations with a similar capacity and output.
Advanced BMS Protection - A built-in battery management system regulates vitals, including voltage, current, and temperature, keeping DELTA 2 Max safe, secure, and built to stand the test of time.

Product Specifications
EcoFlow Delta 2 Max Product Specifications
| Product Name | EcoFlow DELTA 2 Max |
| Capacity | Expandable from 2048Wh to 6144Wh |
| AC Input | X-Stream 1800W, 15A |
| Solar Input | 1000W Max, 11V-60V, 15A ; 500W per port |
| AC Output (×6) | 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) |
| What’s in the box | DELTA 2 Max |
| AC Charging Cable | |
| Car Charging Cable | |
| DC5521 to DC5525 Cable | |
| User manual & warranty card |
EcoFlow 400W Portable Solar Panel Product Specifications
|
Weight (with Kickstand Case) |
Approx. 41.9 (19kg) |
|
Rated Power |
400W |
|
Efficiency |
22.40% |
|
Dimensions |
42.0*94.1*1.0 in (106.8*239.0*2.4cm) |
|
Open Circuit Voltage |
48V (Vmp 41V) |
|
Short Circuit Current |
11A (Imp 9.8A) |
|
Cell Type |
Monocrystalline Silicon |
|
Connector Type |
Solar Connector |
Product Manual
EcoFlow DELTA 2 MAX Product Manual
EcoFlow 400W Portable Solar Panel | User Manual
Using DELTA for the First Time
How to Connect Portable Solar Panels to EcoFlow Portable Power Station
How to use EcoFlow Portable Solar Panel
Product Warranty
Please note that the warranty period may vary according to local laws and regulations. Some countries, states, and provinces do not allow limitations on how long an implied warranty may last, so the limitation described above may not apply to you. You may have other rights from state to state, province, or country.
DO NOT USE YOUR PRODUCTS UNTIL YOU HAVE READ THE TERMS OF THE WARRANTY.
All EcoFlow products purchased come with a limited warranty. BY USING ECOFLOW PRODUCTS, YOU AGREE TO BE BOUND BY THE TERMS OF THE ECOFLOW LIMITED WARRANTY.
The warranty period started when the original purchaser received the products.
Warranty extension
You can extend the warranty for products purchased between January 1, 2022, and August 31, 2022, by registering on the official website on or before October 15, 2022.
Warranty cannot be extended for products purchased before January 1, 2022.
Customers who have purchased products on or after September 1, 2022 will enjoy the warranty period (with warranty extension) listed in the table above. Customers are advised to complete registration as early as possible.
Exclusions and Limitations
This warranty does not apply:
Non-quality related issues;
Items purchased from unauthorized resellers;
Purchases without valid proof of purchase;
Items that have been refunded;
Items that have expired their warranty period;
Any defects or damages caused by misuse of products, unauthorized modification, dis-assembly or operation not in accordance with the official instructions or manuals;
Any defects or damages caused by exposure to excessive heat, liquids or other external causes;
Any defects or damages caused by reliability or compatibility issues when using unauthorized third-party parts;
Lost or stolen products;
Free products.
Cross-Regional After-Sales Service
EcoFlow does not provide a global product warranty, and the warranty service can only be obtained at a designated EcoFlow repair center.
To repair the product in an EcoFlow repair center when the product was purchased in another region, depending on part availability, customers can obtain a cross-regional repair service at an additional charge. (Some products do not support cross-regional repair even if the customer is willing to pay for the service. For more details, please contact EcoFlow Support.)
A cross-regional replacement service is not available for different versions of the same product.
The customer will need to bear customs duties, taxes, customs clearance, and other costs incurred for a cross-regional repair, regardless of whether it is the warranty or paid repair service.
Product FAQs
N/A
Original: $1,299.00
-65%$1,299.00
$454.65Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
EcoFlow Delta 2 Max + 400W Solar Panel
Description
• Expandable capacity: 2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to hit a capacity of 6144Wh. Ideal for home backup, RVing, outdoors or even everyday use.
• Built to last 6× longer: Get 10 years of daily use until hitting 80% of its original capacity. That's down to its LFP battery chemistry giving you 3000+ cycles.
• Huge AC output: With X-Boost mode, get up to 3400W output power to run 99% of home appliances. Power 15 devices at once, including 6 AC outlets.
• Fastest recharging: World's fastest AC recharging and X-Stream dual AC+Solar charging speeds. Up to 1000W solar input to charge in as fast as 2.3 hours.
• Capture more energy: 99% MPPT efficiency maximizes solar generation during the daytime.
• High conversion efficiency rating - guarantees a faster solar charging speed. 0-100% in 2.8 hours (2 sets) or 0-100 in 5.4 hours (1 set).
• Customized in-app energy management: Prioritize solar or AC charging, view input and output power, battery levels and more.
• 5-Year warranty: 5 years for DELTA 2 Max, 12 months for 400W Solar Panel.

400W Portable Solar Panels. Our 400W portable solar panel offers high solar output, conversion efficiency rating, and a convenient folding design so it’s ready to grab and go at any time.
10-Year Long-lasting LFP Battery - With its upgraded LFP battery chemistry, DELTA 2 Max has a lifespan of 3000 complete cycles until it reduces to 80% capacity. You'll get pretty much 10 years of power, even if you use it every day. That's 6× longer than other power stations with a similar capacity and output.
LFP Battery Chemistry - That's 6× longer than other power stations with a similar capacity and output.
Advanced BMS Protection - A built-in battery management system regulates vitals, including voltage, current, and temperature, keeping DELTA 2 Max safe, secure, and built to stand the test of time.

Product Specifications
EcoFlow Delta 2 Max Product Specifications
| Product Name | EcoFlow DELTA 2 Max |
| Capacity | Expandable from 2048Wh to 6144Wh |
| AC Input | X-Stream 1800W, 15A |
| Solar Input | 1000W Max, 11V-60V, 15A ; 500W per port |
| AC Output (×6) | 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) |
| What’s in the box | DELTA 2 Max |
| AC Charging Cable | |
| Car Charging Cable | |
| DC5521 to DC5525 Cable | |
| User manual & warranty card |
EcoFlow 400W Portable Solar Panel Product Specifications
|
Weight (with Kickstand Case) |
Approx. 41.9 (19kg) |
|
Rated Power |
400W |
|
Efficiency |
22.40% |
|
Dimensions |
42.0*94.1*1.0 in (106.8*239.0*2.4cm) |
|
Open Circuit Voltage |
48V (Vmp 41V) |
|
Short Circuit Current |
11A (Imp 9.8A) |
|
Cell Type |
Monocrystalline Silicon |
|
Connector Type |
Solar Connector |
Product Manual
EcoFlow DELTA 2 MAX Product Manual
EcoFlow 400W Portable Solar Panel | User Manual
Using DELTA for the First Time
How to Connect Portable Solar Panels to EcoFlow Portable Power Station
How to use EcoFlow Portable Solar Panel
Product Warranty
Please note that the warranty period may vary according to local laws and regulations. Some countries, states, and provinces do not allow limitations on how long an implied warranty may last, so the limitation described above may not apply to you. You may have other rights from state to state, province, or country.
DO NOT USE YOUR PRODUCTS UNTIL YOU HAVE READ THE TERMS OF THE WARRANTY.
All EcoFlow products purchased come with a limited warranty. BY USING ECOFLOW PRODUCTS, YOU AGREE TO BE BOUND BY THE TERMS OF THE ECOFLOW LIMITED WARRANTY.
The warranty period started when the original purchaser received the products.
Warranty extension
You can extend the warranty for products purchased between January 1, 2022, and August 31, 2022, by registering on the official website on or before October 15, 2022.
Warranty cannot be extended for products purchased before January 1, 2022.
Customers who have purchased products on or after September 1, 2022 will enjoy the warranty period (with warranty extension) listed in the table above. Customers are advised to complete registration as early as possible.
Exclusions and Limitations
This warranty does not apply:
Non-quality related issues;
Items purchased from unauthorized resellers;
Purchases without valid proof of purchase;
Items that have been refunded;
Items that have expired their warranty period;
Any defects or damages caused by misuse of products, unauthorized modification, dis-assembly or operation not in accordance with the official instructions or manuals;
Any defects or damages caused by exposure to excessive heat, liquids or other external causes;
Any defects or damages caused by reliability or compatibility issues when using unauthorized third-party parts;
Lost or stolen products;
Free products.
Cross-Regional After-Sales Service
EcoFlow does not provide a global product warranty, and the warranty service can only be obtained at a designated EcoFlow repair center.
To repair the product in an EcoFlow repair center when the product was purchased in another region, depending on part availability, customers can obtain a cross-regional repair service at an additional charge. (Some products do not support cross-regional repair even if the customer is willing to pay for the service. For more details, please contact EcoFlow Support.)
A cross-regional replacement service is not available for different versions of the same product.
The customer will need to bear customs duties, taxes, customs clearance, and other costs incurred for a cross-regional repair, regardless of whether it is the warranty or paid repair service.
Product FAQs
N/A























