Description
EcoFlow DELTA 3 Classic (1024Wh)
Fast to Charge. Reliable Everywhere.
X-Stream Fast Charging - 0–80% in 45 Minutes
The DELTA 3 Classic (1024Wh) recharges from 0–80% in just 45 minutes using AC input, delivering quick, efficient power whenever you need it. EcoFlow’s X-Stream technology provides ultra-fast charging without harming battery health by intelligently regulating voltage and power flow. Whether at home, outdoors, or on the go, you’re ready in under an hour.
Versatile Charging - Power Up Anytime
With four available charging options, you can stay powered wherever life takes you. Enable Storm Guard Mode (via the EcoFlow App) to trigger automatic charging whenever extreme weather alerts are detected, keeping your power station ready even when you’re away.
1800W Output, 3600W Surge - Power Your Essentials
Providing a stable 1800W pure sine wave AC output, the DELTA 3 Classic easily handles demanding appliances such as microwaves and power tools. With X-Boost™ enabled, it supports devices up to 2600W, preventing overloads while delivering smooth, uninterrupted performance.
10ms UPS Switching for Constant Protection
In the event of a power outage, the DELTA 3 Classic switches over in as little as 10 milliseconds. This rapid response helps keep sensitive devices, like servers, routers, or NAS systems, running without interruption, preventing data loss or downtime.
Long-Lasting, Durable, Built for Real-World Use
Designed with automotive-grade full-tab LFP cells, the DELTA 3 Classic is made for long-term reliability. Its durable housing and intelligent BMS, powered by an ARM Cortex chipset, monitors temperature, SOC, SOH, and more to maintain safe, efficient operation for years.
Portable, Compact, Ready to Go Anywhere
Lightweight and easy to transport, the DELTA 3 Classic fits seamlessly into any environment, from home backup setups to outdoor adventures, without adding bulk.
Smart Monitoring & Efficient Power Scheduling
Track consumption, monitor solar input, and manage settings through a clean, intuitive dashboard. You can also schedule charging and discharging cycles to take advantage of better electricity rates during off-peak and peak hours.
Specifications
Net Weight: 12.1 kg ± 0.3 kg
Dimensions (H×W×D): 398 mm × 200 mm × 283 mm
Rated Capacity: 1024Wh / 51.2V / 20Ah
Cell Chemistry: LFP (LiFePO₄)
Outputs
AC Output:
• 120V~60Hz, 1800W total
X-Boost: 2600W
USB-A Output:
• 5V=3A / 9V=2A / 12V=1.5A (18W max)
USB-C Output:
• USB-C1: 5/9/12/15V=3A, 20V=5A (100W max)
• USB-C2: 5/9V=3A, 15V=2A (30W max)
Inputs
AC Input (Charge Only): 100–120V~15A, 50/60Hz (1400W max)
Max PV Input: 500W
Temperature
• Optimal Operating: 20°C–30°C (68°F–86°F)
• Charging: 0°C–45°C (32°F–113°F)
• Discharging: –10°C–45°C (14°F–113°F)
• Storage: –10°C–45°C (14°F–113°F)
Additional Features
Warranty: 5 years
(3-year standard + 2-year extension via EcoFlow App)
Communication: Wi-Fi & Bluetooth
UPS Response Time: 10ms
What's in the Box
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When used as intended, internal simulation tests estimate the DELTA 3 Classic (1024Wh) to have an approximate lifespan of 10 years. This information is for reference only; actual results may vary.
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All charging-speed data is sourced from EcoFlow Labs and provided for reference. Actual performance may vary depending on environmental conditions, device status, software version, and other factors.
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This feature requires activation via the EcoFlow App before use.
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EcoFlow Smart Generators are sold separately.
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The EcoFlow 500W Alternator Charger is sold separately.
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Runtime estimates for a single appliance are based on ideal testing conditions; actual performance may vary.
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EF Full-Tab LFP Cells have an internal resistance of 1.5mΩ, which is 25% lower than the 2mΩ resistance of the previous EF #C33 battery cell.
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A 25% reduction in single-cell internal resistance corresponds to a proportional 25% decrease in heat generation under the same current, based on the formula Q = I²Rt.
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Unless specified otherwise, all images, videos, and on-screen content on this page are for reference only. Actual product appearance, color, size, and display content (including backgrounds, UI, and illustrations) may differ.
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!
