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0–80% charge achieved in 43 minutes under optimal conditions using the EcoFlow Smart Generator 4000 (Dual Fuel).
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DELTA 3 Max Plus (2048Wh) is estimated to last approximately 10 years under proper use; actual lifespan may vary.
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Performance comparisons are made against EcoFlow DELTA 2 Max.
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Charging speed data is from EcoFlow Labs for reference; actual results may vary depending on environment, device condition, or software version.
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Certain features require preset activation via the EcoFlow App.
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To enable some features, connect DELTA 3 Max Plus to the Smart Generator using the charging cable and activate the preset in the EcoFlow App; communication via Bluetooth or Wi-Fi.
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EcoFlow Solar Panels are sold separately.
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EcoFlow Alternator Charger Plus 1000 will be launched soon and is sold separately.
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Performance comparison is against standard car cigarette port charging.
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EF Full-Tab LFP Cells have 1.5mΩ internal resistance, 25% lower than previous EF #C33 cells (2mΩ).
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A 25% reduction in single-cell resistance results in a proportional 25% decrease in heat generation (Q = I²Rt).
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Backup time for multiple appliances is based on ideal conditions; actual results may vary.
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Requires connecting 1 × DELTA 3 Max Plus + 2 × DELTA 3 Max Plus Smart Extra Batteries using the EcoFlow Smart Extra Battery Expansion Adapter (adapter coming soon).
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Requires connecting 1 × DELTA 3 Max Plus + 2 × DELTA Pro 3 Smart Extra Batteries using the EcoFlow Smart Extra Battery Expansion Adapter (adapter coming soon).
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EcoFlow Smart Generators are sold separately.
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Some features in the EcoFlow App will be available soon; check the app for details.
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Product images, videos, and screen displays are for reference; actual appearance, color, size, or UI may vary.
Specifications
Net Weight: 22.1 ± 0.4 kg
Dimensions (H × W × D): 494 × 242 × 305 mm
Rated Capacity: 2048Wh, 51.2V, 40Ah
Cell Chemistry: LFP (LiFePO₄)
AC Output: 120V~60Hz, 3000W total (6000W surge); 20A ×4 max per port
X-Boost: 3800W
USB-A Output: 5V-3A / 9V-2A / 12V-1.5A (18W max)
USB-C Output:
• 1 port: 5/9/12/15V-3A, 20V/28V-5A (140W max, HID)
• 2 ports: 5/9/12/15V-3A, 20V-2.25A (45W max each, total 45W)
12V DC Output: 12.6V-30A (378W total); Anderson port 30A max (shared with cigarette lighter)
Cigarette Lighter Port: 12.6V-10A (126W total); CAR port 10A max (shared with Anderson)
AC Input: 100–120V~15A, 50/60Hz
Maximum PV Input: 1000W
Optimal Operating Temperature: 20°C to 30°C (68°F to 86°F)
Charge Temperature: 0°C to 45°C (32°F to 113°F)
Discharge Temperature: –10°C to 45°C (14°F to 113°F)
Storage Temperature: –10°C to 45°C (14°F to 113°F)
Warranty: 5 years (3-year standard + 2-year extension via EcoFlow App registration)
Communication: Wi-Fi & Bluetooth
EMC: Class B
UPS Response Time: <10ms
Warranty
Warranty Policy – King of Generators
At King of Generators, we are committed to ensuring you have a seamless experience with your purchase. Below is an overview of the EcoFlow warranty policy to help you understand coverage and how to make a warranty claim through King of Generators support.
Warranty Period Overview
EcoFlow provides a limited warranty on its products, starting from the date of purchase. The warranty period varies by product type:
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DELTA Series & RIVER Series: 1–5 years (depending on model)
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Solar Panels: 12 months to 10 years
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Accessories: 12 months
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Smart Generators: 1–3 years
For detailed coverage, refer to the product-specific warranty on EcoFlow’s official website or contact King of Generators support.
What’s Covered?
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Free repairs or replacements for defects in materials or workmanship
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Warranty extensions available for select products upon registration on EcoFlow’s website
What’s Not Covered?
The warranty does not cover:
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Damage due to misuse, unauthorized modifications, or external factors (e.g., water, weather)
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Products purchased from unauthorized sellers or without valid proof of purchase
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Products used outside the intended region or incompatible with local power standards
Note: EcoFlow products are designed for use in the U.S. Warranty claims for malfunctions due to use outside the country may not be covered.
How to Make a Warranty Claim
If you experience any issues, please contact King of Generators support to initiate a warranty claim.
📞 Phone: (855) 799-2943
📧 Email: info@kinggenerators.com
Our team will assist you with the claim process, including verifying your purchase, troubleshooting the issue, and coordinating with EcoFlow for repair or replacement.
Once approved, we will provide further instructions, including shipping details and estimated resolution time.
For any questions regarding warranty coverage, feel free to contact King of Generators support. We're here to help!