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Description
xEcoFlow DELTA Pro Ultra Series Smart Extra Battery
6144Wh Capacity | LiFePO₄ Battery | Expandable Energy Storage | Up to 30kWh per DELTA Pro Ultra Inverter | Smart Battery Management | 5-Year Warranty
The EcoFlow DELTA Pro Ultra Series Smart Extra Battery provides 6144Wh (6.144kWh) of additional energy storage for compatible EcoFlow DELTA Pro Ultra Series systems. Designed for whole-home backup, emergency preparedness, solar energy storage, RVs, off-grid living, and extended power outages, this Smart Extra Battery lets you increase your available energy without replacing the main inverter. With LiFePO₄ battery technology, intelligent battery management, and a modular design, it provides a reliable way to build a larger and more flexible home energy system.
Add 6.144kWh of Extra Energy
The Smart Extra Battery adds 6144Wh of additional capacity to a compatible DELTA Pro Ultra Series system. More stored energy means longer runtime for your household appliances and electronics during power outages or off-grid use.
Use the additional capacity to keep compatible refrigerators, freezers, lighting, Wi-Fi equipment, computers, televisions, medical equipment, kitchen appliances, and other essential devices running for longer periods.
Expand Your Energy Storage as Needed
The DELTA Pro Ultra Series is built around a modular battery architecture. Each compatible Smart Extra Battery adds another 6.144kWh of storage to your system.
With one DELTA Pro Ultra Inverter, the system can support up to five 6144Wh batteries, providing up to approximately 30kWh of total battery capacity.
This allows you to start with the amount of storage you need today and expand your system as your energy requirements grow.
Designed for DELTA Pro Ultra Series Systems
The Smart Extra Battery is designed specifically to work with compatible EcoFlow DELTA Pro Ultra Series energy systems.
The battery works together with the compatible inverter to provide additional stored DC energy, while the inverter converts that energy into usable AC power for household appliances and other connected equipment.
Important: This is an expansion battery, not a standalone portable power station. It requires a compatible EcoFlow DELTA Pro Ultra Series system for operation.
Long-Lasting LiFePO₄ Battery
The Smart Extra Battery uses LiFePO₄ (LFP) battery chemistry, which is well suited to long-term energy storage applications.
LFP technology offers excellent thermal stability and durability while supporting frequent charging and discharging. This makes the battery suitable for both everyday energy management and emergency backup applications.
Built for Long-Term Energy Storage
Designed as part of a permanent or semi-permanent home energy system, the Smart Extra Battery provides a dependable reserve of stored electricity.
Its large capacity can help reduce the frequency of charging cycles required during extended outages, while the modular design allows additional batteries to be added as your backup requirements increase.
More Runtime During Power Outages
When utility power fails, every additional watt-hour of stored energy can extend the amount of time your backup system remains operational.
Adding a Smart Extra Battery to your DELTA Pro Ultra system provides an additional 6144Wh, helping you maintain essential household loads for longer without immediately relying on solar or generator charging.
Ideal for Solar Energy Storage
Pair the Smart Extra Battery with compatible EcoFlow DELTA Pro Ultra solar systems to store excess solar energy for later use.
During periods of strong sunlight, solar panels can recharge the connected battery system. Stored energy can then be used during the evening, at night, or when solar production is reduced.
This makes the battery a useful component of a solar-powered home backup and energy-independence system.
Power Your Home for Longer
With multiple Smart Extra Batteries installed, the DELTA Pro Ultra system can provide a substantial energy reserve.
A larger battery bank is particularly valuable for households with high energy consumption or locations where outages can last for many hours or days.
Store more energy during normal operation and have a larger reserve available when the grid goes down.
Smart Battery Management
The Smart Extra Battery includes intelligent battery-management technology designed to monitor battery conditions and optimize safe operation.
The battery management system monitors key parameters such as voltage, current, temperature, and state of charge, helping protect the battery during charging, discharging, and storage.
Advanced Battery Protection
Multiple protection mechanisms help safeguard the battery and connected energy system against abnormal operating conditions.
Protection features are designed to help prevent issues related to:
- Overcharging
- Over-discharging
- Overcurrent
- Overheating
- Short circuits
- Abnormal voltage conditions
- Excessive temperature conditions
These safeguards help provide dependable operation during everyday use and emergency backup situations.
Plug-and-Play Battery Expansion
The Smart Extra Battery is designed to integrate with the compatible DELTA Pro Ultra system without requiring a separate inverter for each battery.
Connect the battery using the appropriate EcoFlow battery connection system, and the DELTA Pro Ultra platform manages the additional energy storage as part of the overall system.
This makes expanding your energy storage considerably easier than building a separate battery and inverter system.
Scalable Up to 30kWh per Inverter
One DELTA Pro Ultra Inverter can support up to five 6144Wh batteries, allowing the total battery capacity to reach approximately 30kWh.
This large capacity is ideal for users who want extended whole-home backup and greater energy independence.
Even Larger Multi-Inverter Systems
For larger energy requirements, compatible DELTA Pro Ultra systems can be configured with multiple inverters and battery modules.
This modular approach allows homeowners to build an energy-storage system based on the size of their home, energy consumption, solar-generation capacity, and desired backup duration.
Ideal for Whole-Home Backup
The Smart Extra Battery is especially valuable when used as part of a whole-home backup configuration.
Combined with a compatible DELTA Pro Ultra inverter and EcoFlow home-integration equipment, the additional battery capacity can help keep important home circuits operational during utility outages.
Instead of relying solely on a small portable battery, you can create a significantly larger centralized backup system.
Perfect for Extended Outages
Short power interruptions may require only a small amount of backup energy, but extended outages can quickly consume a conventional battery's capacity.
The DELTA Pro Ultra Series Smart Extra Battery helps address this problem by adding another 6.144kWh of stored energy, giving your system a much larger reserve for prolonged outages.
Useful for Off-Grid Applications
The battery can also be used as part of an off-grid energy system where reliable access to the electrical grid is unavailable.
When paired with compatible solar generation, the additional storage can help bridge the gap between periods of solar production and periods of low or no sunlight.
This makes it suitable for remote properties, cabins, workshops, RV setups, and other off-grid applications when configured with compatible EcoFlow equipment.
Space-Efficient Energy Storage
The Smart Extra Battery is designed as a modular component of the DELTA Pro Ultra ecosystem, helping users add substantial storage without needing a completely separate power system for every battery.
Its integrated design makes it suitable for organized energy-storage installations where space and system simplicity are important considerations.
Power That Grows With You
One of the biggest advantages of the DELTA Pro Ultra Series is its expandable architecture.
You can begin with a smaller battery configuration and add Smart Extra Batteries later when you need more energy storage. This gives homeowners greater flexibility and allows the system to evolve alongside changing energy requirements.
Reliable Energy for Home and Emergency Use
Whether you're preparing for severe weather, experiencing frequent power outages, operating a solar-powered home, or simply looking for greater energy independence, the EcoFlow DELTA Pro Ultra Series Smart Extra Battery provides a substantial additional energy reserve.
Its 6144Wh capacity, LiFePO₄ chemistry, smart battery management, modular design, and expandable architecture make it a powerful addition to a compatible DELTA Pro Ultra system.
What's Included
- 1 × EcoFlow DELTA Pro Ultra Series Smart Extra Battery
- Battery connection cable/accessories as specified by the applicable SKU
- User Documentation
- Safety Documentation
- Warranty Documentation
Technical Specifications
- Product Type: Smart Extra Battery
- Capacity: 6144Wh / 6.144kWh
- Battery Chemistry: LiFePO₄ (LFP)
- Compatible System: EcoFlow DELTA Pro Ultra Series
- Capacity per Battery: 6.144kWh
- Maximum Batteries per DELTA Pro Ultra Inverter: 5
- Maximum Capacity per Inverter: Up to 30kWh
- Application: Home backup, solar storage, emergency power, RVs, and off-grid energy
- Battery Management: Intelligent Battery Management System
- Protection: Overcharge, over-discharge, overcurrent, over-temperature, short-circuit, and related safety protections
- Expansion: Modular battery architecture
- Installation: Designed for compatible EcoFlow DELTA Pro Ultra systems
5-Year Warranty
The EcoFlow DELTA Pro Ultra Series Smart Extra Battery is backed by a 5-year warranty, providing added peace of mind for long-term energy storage. With its 6144Wh capacity, LiFePO₄ battery chemistry, intelligent battery management, scalable design, and compatibility with the DELTA Pro Ultra ecosystem, it is designed to provide dependable additional energy for home backup, solar storage, and emergency preparedness for years to come.
Shipping & Return
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Why Buy From Us
xWhy Buy From Turbo Genny
At Turbo Genny, we specialize in premium portable power and energy solutions designed for real-world needs—from home backup and emergencies to RV travel, off-grid living, and outdoor adventures. Our mission is simple: make reliable, clean power easy to buy, easy to understand, and easy to trust.
When you shop with Turbo Genny, you’re not just purchasing a product—you’re choosing a knowledgeable partner committed to long-term support and customer satisfaction.
We Put Expertise First
Power stations and solar generators are not one-size-fits-all. Our team understands the technical details behind capacity, output, expansion, and compatibility, and we’re here to help you choose the right solution for your specific needs. Whether you’re powering a home during outages, running appliances in an RV, or building an off-grid setup, we provide expert guidance before and after your purchase.
You’ll always have access to real people who know the products—not scripted responses.
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Turbo Genny is an authorized retailer for every brand we sell, including leading names in portable power and energy storage. That means:
- Genuine products only
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You can shop with confidence knowing your investment is protected.
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We work directly with manufacturers and trusted distributors to offer highly competitive pricing. If you find the same product at a lower price from an authorized retailer, let us know—we’ll do our best to match or beat it.
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Most orders ship fast and free from U.S.-based warehouses, with delivery estimates shown at checkout. We process orders quickly so you get your power solution when you need it—especially important during emergencies or planned trips.
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We offer easy 30-day returns on eligible products for added peace of mind. If something isn’t right, our support team will guide you through the return process quickly and clearly.
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Shop with Confidence at Turbo Genny
From expert advice and authorized products to fast shipping and dependable support, Turbo Genny is built to be a trusted destination for portable power and energy solutions. We’re here to help you power confidently—today and for years to come.
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