Product details
The EcoFlow Extra Battery for DELTA 2 is an expansion pack designed to increase the energy storage of the DELTA 2 portable power station. When connected, it effectively doubles the system’s capacity, from 1,024 Wh to about 2,048 Wh, which means much longer run time for appliances, electronics, or during blackout situations. The battery uses LiFePO₄ (LFP) chemistry, giving it a very long cycle life and stable performance over time.
It integrates seamlessly with the DELTA 2: you just connect it via the expansion port, and they manage charging and discharging together. The extra battery supports fast recharging through AC and solar, and it’s compatible with the EcoFlow app for real-time monitoring of its state, performance, and charge level. The design is portable and stackable, making it convenient for both mobile use and more permanent power setups.
EcoFlow Extra Battery for DELTA 2 Power Station Key Features
- 1,024 Wh capacity
- LiFePO₄ (LFP) battery chemistry
- 3,000+ charge cycles to 80%
- Doubles DELTA 2 system capacity when added
- Stackable and compact design
- Supports AC and solar charging
- Connects via DELTA 2’s expansion port
- Monitors status through the EcoFlow app
- Operates between –20 °C and +45 °C
- Weight: about 9.5 kg






