EcoFlow DELTA 2 Max Smart Extra Battery | 2048Wh LFP Expansion Pack, Scalable Home Backup & Smart App Control – [EFDELTA2MaxEB]

Description

From the Manufacturer
The EcoFlow DELTA 2 Max Smart Extra Battery (EFDELTA2MaxEB) is the definitive modular upgrade for your high-capacity energy ecosystem. Designed to integrate flawlessly with the DELTA 2 Max Portable Power Station, this expansion pack provides an additional 2048Wh of capacity. Whether you are building a reliable home backup system for unexpected blackouts or powering a professional remote worksite, this Smart Extra Battery ensures your critical appliances stay running for twice as long.

Scale Your Power to 6kWh
The DELTA 2 Max ecosystem is built to grow with your energy needs. By adding one Smart Extra Battery, you double your capacity to 4096Wh. Need even more endurance? Connect a second unit to a single DELTA 2 Max station to reach a staggering 6144Wh (6.1kWh). This level of energy storage is sufficient to run heavy-duty household appliances—including refrigerators, microwaves, and power tools—through extended outages or off-grid stays.

Industry-Leading Longevity
Safety and durability are the hallmarks of the DELTA 2 Max series. This Extra Battery utilizes EV-grade LiFePO4 (LFP) battery chemistry, offering incredible stability and a long lifespan. It is rated for 3,000+ full cycles to 80% capacity, meaning it can serve as your primary energy source for over a decade of daily use. The sophisticated Battery Management System (BMS) provides real-time regulation of voltage, current, and temperature to maximize cell health and safety.

Smart Charging and Monitoring
Intelligence is built into every unit. The Smart Extra Battery communicates directly with the main station. When connected, the DELTA 2 Max main unit treats the extra battery as part of itself, balancing the charge and discharge rates across all cells for maximum efficiency. 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 the industry-leading charging methods of the main DELTA 2 Max unit. Whether you are charging via a standard AC outlet, a high-wattage solar array, or a car charger, the Extra Battery recharges in tandem with the main unit. This “fast-refuel” capability ensures that your entire 4kWh or 6kWh system is ready to go in record time.

Specifications

• Model EcoFlow DELTA 2 Max Smart Extra Battery (EFDELTA2MaxEB)
• Capacity 2048Wh (2.04kWh)
• Battery Chemistry LiFePO4 (LFP)
• Cycle Life 3,000 Cycles to 80%+ Capacity
• Connection Type Dedicated DELTA 2 Max Expansion Port
• Recharging Support AC / Solar / Car (via Main Unit)
• Protection Advanced BMS, Over-Voltage, Overload, Over-Temp
• App Support EcoFlow App (via Main Unit connectivity)
• Weight ~19 kg (42 lbs)
• Dimensions 46.4 × 23.5 × 28.3 cm

What’s in the box:

• 1 × EcoFlow DELTA 2 Max Smart Extra Battery
• 1 × DELTA 2 Max Extra Battery Cable
• 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 non-official expansion cables.