EcoFlow DELTA 3 Max (2048Wh) 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.
Remote charging control for added peace of mind.
1800W Input, 0-80% in 68 mins[3]. EcoFlow’s exclusive Storm Guard Mode[4] 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.
Rugged exterior and intelligent BMS for unmatched reliability
From battery chemistry to structural design, DELTA 3 Max (2048Wh) is engineered for extreme durability, environmental resilience, and whisper-quiet performance.
EcoFlow’s advanced BMS uses a high-performance ARM Cortex chipset and intelligent algorithms to monitor your battery in real time. By tracking SOC, SOH, temperature, and more, it ensures peak performance, extended battery life, and worry-free operation.
Lightweight and easy to carry, DELTA 3 Max (2048Wh) fits into any setting—from home to the great outdoors. Weighing just 20.3 kg, it’s 13% lighter[10] 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.
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Net Weight 20.3+0.4kg |
Dimensions (HWD) 494mm×239mm×305mm |
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Rated Capacity 2048Wh 51.2V 40Ah |
Cell Chemistry LFP (LiFePO4) |
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AC Output 120V 60Hz 2400W total, 20A (x4) Max per |
X-Boost 3400W |
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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 |
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Cigarette Lighter Output Port 12.6V, 10A, 126W Max |
AC Input (Charge Only) 100-120V~15A 50/60Hz |
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Maximum PV Input Power(W) 500W |
Charge Temperature 0°C-45°C (32°F-113°F) |
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Discharge Temperature -10 to 45°C (14°F-113°F) |
Operating Humidity 20%-95% |
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Warranty 5-Year Warranty |
Communication Method Wifi 2.4GHz/ Bluetooth5.0 |
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EMC Class B |
UPS <10ms |
1. 0-80% in 68 minutes was measured in optimal conditions using AC charging with X-Stream Fast Charging mode on.
2. Based on proper product usage, DELTA 3 Max (2048Wh) is estimated to have a lifespan of approximately 10 years, according to internal simulation test data. This information is for reference only; actual user experience may vary.
3. All charging speed data comes from EcoFlow Labs and is for reference only. The actual data may vary slightly depending on the usage environment, device condition, software version, and other factors.
4. Feature requires preset activation via the EcoFlow App.
5. EcoFlow Smart Generators are sold separately.
6. EcoFlow Solar Panels are sold separately.
7. EcoFlow 500W Alternator Charger is sold separately.
8. Unless otherwise noted, all images, videos, and screen display contents about the product itself on this page are for reference only. Actual product effects (including but not limited to appearance, color, and size) and screen display contents (including but not limited to backgrounds, UI, and illustrations) may vary.
9. Noise levels measured at 1m under 25°C ambient: ≤25dB (600W) for charging/discharging.
10. Compared with EcoFlow DELTA 2 Max
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.
EcoFlow provides a limited warranty on its products, starting from the date of purchase. The warranty period varies by product type:
DELTA Series & RIVER Series: 1–5 years (depending on model)
Solar Panels: 12 months to 10 years
Accessories: 12 months
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.
Free repairs or replacements for defects in materials or workmanship
Warranty extensions available for select products upon registration on EcoFlow’s website
The warranty does not cover:
Damage due to misuse, unauthorized modifications, or external factors (e.g., water, weather)
Products purchased from unauthorized sellers or without valid proof of purchase
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.
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!
