EcoFlow DELTA Pro Smart Extra Battery | 3600Wh LiFePO4 Expansion Pack, Scalable Home Backup & Smart App Control – [DELTAPROEB-US]

Description

From the Manufacturer
The EcoFlow DELTA Pro Smart Extra Battery (DELTAPROEB-US) is the ultimate modular upgrade for your home energy ecosystem. Designed to integrate flawlessly with the DELTA Pro Portable Power Station, this expansion pack provides an additional 3600Wh of capacity. Whether you are building a robust home backup system for long-term blackouts or powering a professional remote worksite, this Smart Extra Battery ensures your critical appliances stay running for days on end.

Scale Your Power to 10.8kWh
The DELTA Pro ecosystem is built for growth. By adding one Smart Extra Battery, you double your capacity to 7.2kWh. Need more? Connect a second unit to a single DELTA Pro station to reach a staggering 10.8kWh. This level of energy storage is sufficient to run heavy-duty household appliances—including refrigerators, well pumps, and air conditioners—through extended power failures.

Industry-Leading Longevity
Safety and durability are the hallmarks of the DELTA Pro series. This Extra Battery utilizes EV-grade LiFePO4 (LFP) battery chemistry, offering the longest lifespan in the industry. It is rated for 6,500+ cycles to 50% capacity (or 3,500 cycles to 80%), meaning it can serve as your primary energy source for well over a decade. The sophisticated Battery Management System (BMS) provides real-time regulation of voltage, current, and temperature to maximize cell health.

Smart Charging and Monitoring
Intelligence is built into every unit. The Smart Extra Battery doesn’t just sit there; it communicates. When connected, the DELTA Pro main unit treats the extra battery as part of itself, balancing the charge and discharge rates across all cells. Use the EcoFlow App to monitor the status of your entire stack from anywhere in the world via Wi-Fi or Bluetooth, allowing you to see exactly how many hours of runtime remain.

Rapid and Versatile Recharging
The Extra Battery benefits from all the charging methods of the main DELTA Pro unit. Whether you are charging via a standard AC outlet, a 1600W solar array, or an EV charging station, the Extra Battery recharges in tandem with the main unit at record-breaking speeds. For emergency situations, the unit can even be charged directly via the EcoFlow Smart Generator (sold separately) for maximum efficiency.

Specifications

• Model EcoFlow DELTA Pro Smart Extra Battery (DELTAPROEB-US)
• Capacity 3600Wh (3.6kWh)
• Battery Chemistry LiFePO4 (LFP)
• Cycle Life 6,500 Cycles to 50% / 3,500 Cycles to 80% Capacity
• Connection Type Dedicated DELTA Pro Expansion Port
• Recharging Support AC / Solar / EV Charging / Smart Generator
• Protection Advanced BMS, Over-Voltage, Overload, Over-Temp
• App Support EcoFlow App (via Main Unit connectivity)
• Weight ~38 kg (84 lbs)
• Dimensions 63.5 × 28.5 × 41.6 cm

What’s in the box:

1 × EcoFlow DELTA Pro Smart Extra Battery

1 × DELTA Pro Extra Battery Cable

1 × Handle Cover

1 × User Manual & Warranty Card

Warranty Information
5-Year Manufacturer Warranty*

Warranty covers internal battery defects and electronics; does not cover physical abuse, water submersion, or damage caused by third-party expansion cables.