EcoFlow DELTA Max additional battery

The EcoFlow 1ECO2002 DELTA Max Additional Battery is an intelligent expansion battery designed to significantly increase the capacity of EcoFlow DELTA 2, DELTA 2 Max, or DELTA Max power stations. By adding one battery, total capacity expands up to 4,032 Wh, and with two batteries connected, it can reach up to 6,048 Wh—providing longer runtimes and greater energy security for home backup, outdoor use, and professional applications.

The EcoFlow DELTA Max Additional Battery (1ECO2002) is a smart and efficient solution for users who need extended power without replacing their existing EcoFlow power station. Fully compatible with the DELTA 2, DELTA 2 Max, and DELTA Max, this intelligent expansion battery seamlessly integrates with the main unit, increasing overall energy capacity and extending operating time for connected devices.

When connected, the additional battery charges and discharges simultaneously with the main power station, ensuring balanced energy usage and optimal battery health. The intelligent Battery Management System automatically synchronizes performance, safety monitoring, and real-time data, allowing the entire system to function as one unified power source.

Ideal for longer power outages, off-grid living, mobile work, and outdoor adventures, the DELTA Max Additional Battery maintains full compatibility with the EcoFlow mobile app for convenient monitoring and control. Its modular design allows users to scale their energy storage as needed—one battery for extended use or two batteries for maximum capacity—making it a flexible and future-ready power expansion solution.

Key features

• Intelligent additional battery for EcoFlow DELTA 2, DELTA 2 Max, and DELTA Max

• Expands total capacity up to 4,032 Wh with one battery

• Supports up to 6,048 Wh with two additional batteries

• Simultaneous charging and discharging with the main unit

• Smart BMS integration for safety and efficiency

• Seamless plug-and-play connection

• Modular and expandable energy storage solution

• Compatible with EcoFlow mobile app monitoring