Description
2400W Output for Strong, Steady, and Reliable Power
The EcoFlow DELTA 3 Max (2048Wh) provides a stable 2400W AC output, supporting devices up to 3400W through X-Boost™ 3.0 technology. Its high-precision inverter samples AC voltage and current every 33μs using a DSP chip, producing a pure sine wave output with exceptional stability—ideal for safely running sensitive electronics.
Fast Charging Options - 0–80% in Just 68 Minutes
Enjoy four convenient charging methods with full remote control. With up to 1800W AC input, the DELTA 3 Max reaches 80% in around 68 minutes. EcoFlow’s Storm Guard Mode (app-enabled) automatically activates AC charging when severe weather alerts are detected, ensuring your unit is ready before an outage occurs.
Built for Longevity, Reliability, and Emergency Readiness
Engineered with automotive-grade full-tab LFP cells, the DELTA 3 Max offers long-lasting durability and consistent performance. Its advanced BMS, equipped with an ARM Cortex chipset, continuously monitors SOC, SOH, temperature, and other key metrics to help extend battery life and maintain safe operation.
Compact, Lightweight, and Easy to Carry Anywhere
Weighing just 20.3 kg, the DELTA 3 Max is designed for effortless portability. Despite its lighter build, it delivers powerful performance suitable for home backup, outdoor use, and mobile applications.
Smart Insights & Simple Control
Track real-time energy use, solar input, and overall system health from a single intuitive interface. You can schedule charging and discharging cycles to take advantage of off-peak rates, helping reduce your energy costs.
Specifications
Net Weight: 20.3 ± 0.4 kg
Dimensions (H×W×D): 494 mm × 239 mm × 305 mm
Rated Capacity: 2048Wh / 51.2V / 40Ah
Cell Chemistry: LFP (LiFePO₄)
Outputs
AC Output:
• 120V, 60Hz, 2400W total
• 20A × 4 max per port
X-Boost: 3400W
USB-A Output:
• 5V–3A / 9V–2A / 12V–1.5A (18W max)
USB-C Output:
• USB-C × 1: 5/9/12/15V–3A, 20V–5A (100W max)
• USB-C × 2: 5/9V–3A, 15V–2A (30W max per port; total 30W)
Cigarette Lighter Port:
• 12.6V, 10A, 126W max
Inputs
AC Input: 100–120V~15A, 50/60Hz
Max PV Input: 500W
Temperature & Humidity
• Charging: 0°C–45°C (32°F–113°F)
• Discharging: –10°C–45°C (14°F–113°F)
• Operating Humidity: 20%–95%
Additional Features
Warranty: 5 years
(3-year standard + 2-year extension via EcoFlow App)
Communication: Wi-Fi 2.4GHz, Bluetooth 5.0
EMC: Class B
UPS Response Time: <10ms
220W solar panel Specifications
N-Type TOPCon Panel
-
Cell Type: Monocrystalline silicon (N-Type TOPCon)
-
Conversion Efficiency: High-efficiency performance
-
Weight: 5.1 kg – 7.2 kg
-
Stand Type: Built-in adjustable stand (30°–60° range)
-
Additional Feature: Comes with an integrated solar angle guide
P-Type PERC Panel
-
Cell Type: Monocrystalline silicon (P-Type PERC)
-
Conversion Efficiency: High-efficiency design
-
Weight: 5.6 kg – 9.5 kg
-
Stand Type: Separate kickstand-style carrying case
-
Additional Feature: Does not include a solar angle guide
What's in the Box
-
The 0–80% charge time of 68 minutes was recorded under optimal test conditions using AC charging with X-Stream Fast Charging enabled.
-
When used correctly, internal simulation data estimates the DELTA 3 Max (2048Wh) to have an approximate lifespan of 10 years. This estimate is for reference only; actual results may vary.
-
All charging-speed figures are sourced from EcoFlow Labs and provided as reference. Actual performance may differ based on environmental conditions, device status, software version, and other factors.
-
This feature must be activated in advance through the EcoFlow App.
-
EcoFlow Smart Generators are not included and must be purchased separately.
-
EcoFlow Solar Panels are sold separately.
-
The EcoFlow 500W Alternator Charger is sold separately.
-
Unless otherwise stated, all product images, videos, and screen content shown on this page are for reference only. Actual product appearance (such as color, size, and design) and display content (such as UI, backgrounds, and illustrations) may differ.
-
Noise testing conducted at a distance of 1 meter in a 25°C environment measured ≤25dB (600W) during charging and discharging.
-
Comparison refers to the EcoFlow DELTA 2 Max.
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:
-
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.
What’s Covered?
What’s Not Covered?
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.
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!
