Expand Your DELTA Pro Power for Serious Home Backup
3600Wh Extra Capacity – instantly add more runtime to your DELTA Pro system
Designed for DELTA Pro – seamless compatibility for easy system expansion
Expandable up to 10.8kWh – add up to two extra batteries for major energy storage capacity
Up to 30% Lower Cost vs Similar Capacity Systems – grow your setup more affordably than buying another full power station
LFP Battery Technology – built for long-term safety and daily use
3000+ Charge Cycles – up to 10 years of use before reaching 80% capacity
Plug-and-Play Setup – no complicated installation required
Smart App Control – monitor battery status and performance in the EcoFlow app
Ideal for Outages & Off-Grid Use – longer backup runtime when it matters most
5-Year Full Warranty
Why Choose DELTA Pro Smart Extra Battery
The EcoFlow DELTA Pro Smart Extra Battery is the smartest way to expand your DELTA Pro system without replacing your main unit. Add 3600Wh of extra storage for longer outages, RV living, off-grid setups, and whole-home backup confidence.
Fast U.S. Shipping
Orders fulfilled quickly from domestic stock — no overseas wait times or customs delays.
Authorized Reseller
100% official EcoFlow dealer. Every product is genuine, warrantied, and fully supported.
Real Inventory
What you see is what we have. No backorder surprises or phantom stock listings.
Expert Support
Our team knows EcoFlow inside and out. Get real answers from real people, fast.
