The DELTA 2 Smart Extra Battery expands your energy storage capacity with ease, allowing you to increase the DELTA 2’s total capacity by an additional 1024Wh. This upgrade gives you greater flexibility for home backup, outdoor power, and long-term energy needs. It delivers 2kWh of expandable capacity at up to 30% lower cost, making it a more affordable solution than purchasing a power station of equivalent size.
 
Built with long-lasting LFP battery chemistry, the DELTA 2 Smart Extra Battery offers a 10-year lifespan with over 3000 charging cycles, maintaining up to 80% of its original capacity even with daily use. This ensures reliable performance and exceptional durability over time.
 
The Extra Battery is easy to use with simple plug-and-play operation, requiring no complicated setup. You can also monitor and control it directly through the EcoFlow app, giving you complete visibility over your energy usage and system status.
 
For added confidence, the DELTA 2 Smart Extra Battery comes with a 5-year full warranty, one of the most comprehensive in the industry, providing long-term peace of mind for your investment.