Description
3600W Output - Strong, Stable Power for Every Need
The EcoFlow DELTA 3 Ultra (3072Wh) provides a 3600W rated output and supports devices up to 4600W using X-Boost™ 3.0, making it capable of running heavy-duty appliances with confidence. Its an inverter that samples AC voltage and current every 33μs and uses a DSP chip to deliver a pure sine wave with superior stability, perfect for sensitive electronics.
Hybrid Backup for Extended Runtime
Pair the DELTA 3 Ultra with an EcoFlow Smart Generator to significantly extend backup duration. The system can automatically shift between fuel and battery power, keeping your home or off-grid setup running through multi-day outages or long adventures.
4 Charging Methods - Recharge in About 1.48 Hours
With 1800W AC input, the unit reaches 0–80% in around 1.48 hours. EcoFlow’s Storm Guard Mode monitors severe weather updates and can automatically activate AC charging remotely using X-Stream fast charging, ensuring your power station is ready before emergencies strike.
Built for Longevity and Reliability
Featuring automotive-grade full-tab LFP cells, a rugged structure, and whisper-quiet operating performance, the DELTA 3 Ultra is engineered for durability and dependable emergency readiness.
Advanced Protection and Smart Design
Equipped with EV-grade CTC structural reinforcement, resistance to extreme environments, Class B EMC certification, and 25dB ultra-quiet operation under light loads.
The intelligent BMS, powered by a high-performance ARM Cortex chipset, actively tracks SOC, SOH, temperature, and other key data to maintain top performance and extend battery lifespan.
Smarter Control and Energy Insights
Use the intuitive dashboard to monitor energy usage, solar input, and battery status. Set timed charge/discharge cycles to take advantage of off-peak electricity rates and discharge during higher-rate periods for potential savings.
What's in the Box
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DELTA 3 Ultra (3072Wh) is estimated to last approximately 10 years under proper use, based on internal simulation data. Actual lifespan may vary.
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Single-appliance runtime is based on ideal conditions; real-world results may differ.
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EcoFlow Smart Generators are sold separately.
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Charging speed data comes from EcoFlow Labs and is for reference only; actual results may vary with environment, device condition, or software version.
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Certain features require preset activation via the EcoFlow App.
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0–80% charge in 1.48 hours measured under optimal conditions using the EcoFlow Smart Generator 4000 (Dual Fuel).
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EcoFlow Smart Generators are sold separately.
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EcoFlow Solar Panels are sold separately.
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EcoFlow Alternator Charger is sold separately.
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Product images, videos, and screen displays are for reference; actual appearance, color, size, or UI may differ.
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Noise levels measured at 1m under 25°C ambient: ≤25dB (600W) during charging or discharging.
Specifications
Net Weight: 32.7 ± 0.6 kg
Dimensions (H × W × D): 625.99 × 327.71 × 394.95 mm
Rated Capacity: 3072Wh, 51.2V, 60Ah
Cell Chemistry: LFP (LiFePO₄)
AC Output: 120V~60Hz, 3600W total (7200W surge); 20A ×4 max per port; 30A ×1 max per port
X-Boost: 4600W
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)
Cigarette Lighter Port: 12.6V, 10A, 126W max
AC Input: 100–120V~15A, 50/60Hz
Maximum PV Input: 800W
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?
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!
![4 Ways to Charge Up — Ready in Just 1.48 Hrs<sup>[4]</sup>](https://us.ecoflow.com/cdn/shop/files/Wall_Charging_86c7fb45-f907-47b9-98a4-56609e336caf.jpg?v=1758801815)
