1024Wh Extra Capacity – instantly increase runtime for compatible DELTA 3 series units
Designed for DELTA 3 & DELTA 3 Plus – seamless expansion for more backup power
Plug-and-Play Setup – easy connection with no complicated installation
LFP Battery Technology – built for long-term reliability and daily use
3000+ Charge Cycles – up to 10 years of use before reaching 80% capacity
Smart App Monitoring – track battery status and performance through the EcoFlow app
Compact Matching Design – stacks cleanly with your main power station
5-Year Warranty – long-term confidence and peace of mind
Why Choose DELTA 3 Smart Extra Battery
The EcoFlow DELTA 3 Series Smart Extra Battery is the easiest way to extend the runtime of your DELTA 3 or DELTA 3 Plus portable power station. Perfect for outages, camping, RV travel, and longer off-grid use, it adds extra energy storage without replacing your existing unit.
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