DELTA 3 Ultra Plus+ 400W solar panel

Description

Strong 3600W Output with 7200W Surge Power

The DELTA 3 Ultra Plus (3072Wh) provides a dependable 3600W continuous AC output and up to 7200W surge capability. With X-Boost™ 3.0, it can support devices requiring as much as 4600W, making it suitable for heavy appliances. Its inverter uses a high-precision DSP chip that analyzes AC voltage and current every 33μs, delivering a pure sine wave with excellent stability—safe for sensitive electronics.

Expandable Power for Long Use

The system’s capacity can be increased from 3–11kWh, allowing you to extend runtime from a few hours to multiple days. It is also compatible with EcoFlow Smart Generators for virtually unlimited backup power.

During a typical 4–10 hour outage, it can keep essential household devices running such as refrigeration, heating, lighting, and communication equipment. $3$

Expansion requires 1 × DELTA 3 Ultra Plus paired with 2 × DELTA 3 Max Plus Smart Extra Batteries or 2 × DELTA Pro 3 Smart Extra Batteries using the EcoFlow Smart Extra Battery Expansion Adapter. The adapter is expected to be available in the U.S. around January 2026.

Hybrid Power Option for Extended Backup

Pair the DELTA 3 Ultra Plus (3072Wh) with an EcoFlow Smart Generator $6$ for a hybrid setup that seamlessly switches between battery and fuel, ideal for long outages or remote, off-grid use.

Home Integration and Ultra-Fast Charging

You can connect it to your home in two simple ways. With six total charging methods, it can recharge rapidly—reaching 80% in approximately 89 minutes with 1800W input. $9$

EcoFlow’s Storm Guard Mode $10$ tracks severe weather alerts and automatically activates AC charging, ensuring the unit is topped up before an emergency. X-Stream fast-charging technology helps achieve a full charge in just 48 minutes. $1$

Built for Longevity and Reliability

Using automotive-grade full-tab LFP cells, a rugged shell, and an intelligent BMS, the DELTA 3 Ultra Plus is engineered for durability and stable performance. From internal structure to thermal design, it is built to provide more than a decade of dependable use. $2$

The advanced BMS with an ARM Cortex chip constantly monitors temperature, SOC, SOH, and other key parameters to maintain safety and extend battery lifespan.

Smarter Monitoring & Control

Track your energy consumption, solar input, and savings through an intuitive dashboard. Real-time battery status and electricity rate insights make operation simple and efficient.

Specifications

Net Weight: 33.7±0.6kg
Dimensions (H×W×D): 613.1mm × 327.71mm × 394.95mm

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 supported load

USB-A Output

1× USB-A: 5V–3A / 9V–2A / 12V–1.5A, 18W max

USB-C Output

• 1× USB-C: 5/9/12/15V–3A, 20V/28V–5A, 140W max (HID)
• 2× USB-C: 5/9/12/15V–3A, 20V–2.25A, 45W max each (45W total)

12V DC Output

12.6V–30A, 378W total
Anderson port: 30A max (shared with car cigarette lighter port)

Cigarette Lighter Port

12.6V–10A, 126W total
CAR: 10A max (shared with Anderson port)

AC Input (Charging)

100–120V~15A, 50/60Hz

Max Solar (PV) Input:

1600W

Temperature Ranges

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)

Warranty

5-year warranty (3 years standard + 2 years extended via EcoFlow App registration)

Connectivity

Wi-Fi & Bluetooth

UPS Response Time

<10ms

For 400W Solar Panel 

What's in the Box

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?

• Free repairs or replacements for defects in materials or workmanship

• Warranty extensions available for select products upon registration on EcoFlow’s website

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!