EcoFlow DELTA 3 Ultra Plus Portable Power Station + DELTA 3 Max Plus Smart Extra Battery

While we offer shipping for EcoFlow products to Hawaii, Alaska, and Puerto Rico, please note that EcoFlow does not provide official after-sales services, warranty coverage, or technical support in these regions. For any service-related inquiries regarding EcoFlow products shipped outside the U.S. mainland, please contact Wellbots directly. We recommend purchasing a CPS Accidental Warranty to protect your purchase when shipping to these locations, as it will ensure coverage in the event of damage or defects. Wellbots is solely responsible for all customer service, warranty claims, and support related to shipments to these regions.

EcoFlow DELTA 3 Ultra Plus Portable Power Station+ DELTA 3 Max Plus Smart Extra Battery

Product Description

Pair the DELTA 3 Ultra Plus portable power station with the DELTA 3 Max Plus Smart Extra Battery for a powerful, scalable energy system. The DELTA 3 Ultra Plus delivers 3,072 Wh of energy storage and a 3,600 W rated inverter (7,200 W surge), giving you the ability to run heavy-duty appliances like refrigerators, power tools, or even an RV panel. Its Smart Output Priority feature lets you choose which circuits matter most when power is limited.

Adding the DELTA 3 Max Plus Smart Extra Battery expands total storage capacity and extends runtime, giving you the freedom to power essentials longer during outages, off-grid trips, or demanding projects. The extra battery connects seamlessly via the dedicated port and integrates fully for charging, management, and monitoring.

Together, this bundle offers high output, long-lasting performance, and the flexibility to grow with your energy needs, whether at home, on the road, or off the grid.

Key Specifications

DELTA 3 Ultra Plus (3,072 Wh)

• Capacity: 3,072 Wh (3.072 kWh)

• Rated AC Output: 3,600 W

• Surge Output: 7,200 W

• Supports devices up to approximately 4,600 W with X-Boost 3.0 technology

• Expandable capacity: from about 3 kWh up to 11 kWh

• 10 ms automatic switchover (UPS) for sensitive electronics

• Built with automotive-grade full-tab LFP battery cells rated for over 10 years of use

• Ultra-versatile charging with up to six methods, including wall, generator, and solar input

• Charges from 0-80% in as little as 48 minutes under optimal conditions

• Enhanced durability for harsh environments including humidity, salt spray, and drop resistance

• Smart Output Priority feature allows pre-setting essential loads (e.g., fridge, router) to stay powered

DELTA 3 Max Plus Smart Extra Battery

• Expands total storage capacity for longer runtime when paired with the DELTA 3 series

• Plug-and-play connection to the main unit’s extra battery port

• LiFePO₄ (LFP) battery chemistry for long life and dependable performance

• Integrated monitoring and management through the EcoFlow app and main unit display

• Compact, stackable design for easy setup in home, RV, or mobile use

• Rugged build quality designed for long-term reliability

What’s in the Box

DELTA 3 Ultra Plus

• DELTA 3 Ultra Plus Portable Power Station

• AC Charging Cable

• User Manual and Warranty Card
  

DELTA 3 Max Plus Smart Extra Battery

• DELTA 3 Max Plus Smart Extra Battery

• Extra Battery Connection Cable

• User Manual and Warranty Card
  

Bundle Benefits & Use Cases

• Extend runtime for home backup, RV travel, or off grid living by adding extra energy storage

• Run multiple high-wattage appliances at once, from kitchen devices to tools and electronics

• Keep essential circuits powered through Smart Output Priority settings on the main unit

• Scale your energy system as your needs grow without replacing the core power station

• Seamless integration between the main unit and extra battery for efficient, space-saving setup