EcoFlow DELTA Pro Smart Extra Battery - DELTAProEB-US
· Expandable capacity - Increase the capacity of DELTA Pro with an extra 3600Wh.
· Triple power at up to 30% lower cost - 3-10kWh expandable capacity to fit your energy storage needs. Add up to two DELTA Pro Extra Batteries to gain a capacity of 10.8kWh. And it's up to 30% more affordable than a power station of the same capacity.
· 10-year lifespan with an LFP battery - Get 10 years of daily use until it hits 80% of its original capacity. Embrace the 3000+ charging cycles enabled by the LFP battery chemistry.
· Easy to use - Plug-and-play without setup. And use the EcoFlow app to monitor and control the DELTA Pro Extra Battery.
· 5-Year Full Warranty - With one of the most comprehensive warranties in the industry, we go the extra mile to give you peace of mind.
What Our Experts Think
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The EcoFlow DELTA Pro Smart Extra Battery is the perfect power expansion for your DELTA Pro system, extending total capacity up to 10.8kWh.
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Designed for seamless plug-and-play connection, it ensures longer runtime for home backup, RVs, and off-grid setups.
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Its smart display and app control let you monitor battery status, charge level, and system performance in real time.
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Built with advanced LiFePO4 technology, it delivers durability, safety, and over 3,500 charge cycles.
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Ideal for those who need scalable, eco-friendly energy solutions for emergencies or extended outdoor adventures.
Q&A
Q: Can I use the Smart Extra Battery without the DELTA Pro?
A: No, it works exclusively as an expansion unit with the EcoFlow DELTA Pro power station.
Q: How do I charge the extra battery?
A: It charges automatically when connected to the DELTA Pro during solar, AC, or EV charging.
Q: How many extra batteries can I connect?
A: You can connect up to two Smart Extra Batteries, expanding your total capacity up to 10.8kWh.
Q: Does it support remote monitoring?
A: Yes, via the EcoFlow app, giving you full control and status updates from anywhere.
Maintenance Tips
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Store the battery in a cool, dry environment between 20°C–30°C when not in use.
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Recharge every 3–6 months to maintain optimal battery health.
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Keep ports and connectors clean and dust-free.
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Avoid full discharge for extended periods to preserve LiFePO4 cell longevity.
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Use only EcoFlow-approved cables and accessories to ensure safety and performance.
Damage 
Loss 
Theft 
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