Product details
EcoFlow DELTA 2 Max Extra Smart Battery – Expand Smarter, Live Freer
Upgrade your power freedom with the EcoFlow DELTA 2 Max Extra Battery (EFDELTA2MaxEB) — the intelligent expansion module that doubles or triples your DELTA 2 Max’s runtime. Whether you’re camping, off-grid, or preparing for home outages, this extra 2048Wh deep-cycle battery delivers scalable, sustainable energy wherever life takes you.
Smart Energy Expansion
Pair one or two Extra Batteries with your DELTA 2 Max to increase total capacity up to 6,144Wh. That’s enough to power a fridge for days, tools at a job site, or critical home devices during blackouts.
Ultra-Fast & Flexible Charging
Recharge from AC, solar (up to 1000W), or EcoFlow Smart Generator in as fast as 81 minutes (0–80%) using EcoFlow’s X-Stream technology. Enjoy reliable power anywhere, with or without the grid.
LiFePO₄ Battery Chemistry for Longevity
Built with premium LFP (LiFePO₄) deep-cycle cells, the DELTA 2 Max Extra Battery lasts over 3,000 full cycles — giving you up to 10 years of daily use before dropping to 80% capacity.
Intelligent Battery Management System (BMS)
Automatically monitors voltage, temperature, and current for safety and performance. Integrates seamlessly with the EcoFlow App for remote control and energy monitoring.
Designed for Portability and Integration
Durable, stackable design with secure side handles makes it easy to store or transport. Connects to the DELTA 2 Max main unit via a simple cable — no tools required.








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