Ecoflow DELTA Pro Ultra X 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 Pro Ultra X Smart Extra Battery

Product Description

The EcoFlow DELTA Pro Ultra X Smart Extra Battery expands the storage capacity of your DELTA Pro Ultra X system, adding an additional 6,144 Wh per unit. Featuring EV-grade LiFePO₄ battery chemistry, dual BMS protection, and a three-level safety system, it provides enhanced durability, stability, and long-term performance.

With its plug-and-play design, the Smart Extra Battery easily connects to your existing DELTA Pro Ultra X setup, no complex installation or wiring required. Built for scalability, it’s the ideal solution for extending backup runtime, increasing off-grid autonomy, or preparing for higher future energy demands.

Key Specifications

• Expandable Capacity: Adds 6,144 Wh per battery module

• Battery Chemistry: LiFePO₄ (Lithium Iron Phosphate) for long cycle life and superior safety

• Protection System: Dual BMS (Battery Management System) with 3-level safety architecture

• Compatibility: Designed exclusively for the DELTA Pro Ultra X system

• Connection Type: Plug-and-play expansion, no tools required

• Durability: Built with automotive-grade components for extended service life

• Warranty: 5 years (manufacturer standard)

Product Benefits & Use Cases

• Expandable Energy Storage: Add more battery capacity to your DELTA Pro Ultra X setup for longer backup or off-grid operation.

• Long-Lasting Performance: Advanced LiFePO₄ chemistry ensures stable power output and thousands of charge cycles.

• Smart, Safe, Reliable: Dual BMS and multi-layer safety systems protect against overcharge, overheating, and short circuits.

• Effortless Integration: Plug-and-play connection makes expansion fast and simple, no professional installation required.

• Scalable Design: Add multiple Smart Extra Batteries as your energy needs grow, building a robust whole-home backup system.

What's in the box?

• Delta Pro Ultra X extra Battery (1)
• Battery Connection Cable (1)
• User Manual & Warranty Card

Specs

Battery Chemistry

LFP

Warranty

5 years

Battery Temperature

Operating & Storage temp: -4°F to 113°F (-20°C to 45°C)

Inverter Temperature

Operating & Storage temp: -4°F to 122°F (-20°C to 50°C)