DELTA 3 Series Smart Extra Battery – Expand Your Power with Reliable, Long-Lasting Performance

Boost your energy capacity with the DELTA 3 Series Smart Extra Battery—a seamless, plug-and-play solution designed to expand the capabilities of your DELTA 3 or DELTA 3 Plus power station. Whether you're preparing for outages or powering off-grid adventures, this smart extra battery adds 1024Wh of dependable energy.

Key Features

• Expandable Capacity
  Add an extra 1024Wh of energy to your DELTA 3 or DELTA 3 Plus, giving you more backup power when you need it most.
• Long Lifespan with LFP Battery Chemistry
  Engineered for durability, the LFP (LiFePO4) battery supports over 3000 cycles, delivering up to 10 years of daily use before reaching 80% capacity.
• Smart App Control
  Easily monitor and manage battery status, charging, and performance using the EcoFlow app—all from your phone.
• Plug-and-Play Simplicity
  No tools or complicated setups—just connect and go. The smart design automatically syncs with your existing DELTA 3 system.
• Backed by a 5-Year Warranty
  Enjoy peace of mind with one of the industry’s most comprehensive 5-year warranties for lasting support and reliability.