EcoFlow DELTA Pro Ultra 3 Batteries 18kWh Portable Energy Storage
FREE Shipping in the 48 Contiguous States. Qualifying items are available to Alaska, Hawaii, Puerto Rico, Guam, Saipan & U.S. Territories.
Customers shipping outside the Lower 48 should select the shipping option that best fits their order at checkout. If additional shipping charges apply, we'll contact you before processing. Questions? Call, text, or WhatsApp 352-561-8443.
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Factory Warranty: 5 Year
EcoFlow DELTA Pro Ultra 3 Batteries 18kWh Portable Energy Storage
Free shipping to the 48 states. We also ship to PR, HI, AK, VI, Guam, and Saipan — message us for a quote.
If you don’t see the power station brand or model you need, message us.
We can often create a private listing for you at a great price!
Warranty Information
Full factory warranty applies to all customers, including island locations.
The only exception is warranty shipping to and from island locations, which is not included.
We offer a low‑cost 5‑year Replacement Shipping Protection plan that covers those shipping costs.
Included SKU:
EFDeltaProUltra-BP-US (QTY 3)
*EcoFlow DELTA Pro Ultra Battery must work with the EcoFlow DELTA Pro Ultra Inverter
Key Benefits
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Expandable 18kWh battery modules enhance the flexibility of your EcoFlow DELTA Pro Ultra system
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Designed for vertical stacking, allowing space-saving integration without clutter
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Reliable energy storage for backup power needs ranging from short-term outages to extended coverage
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Fast plug-and-play setup allows for quick installation without technical complexity
Main Purpose
The EcoFlow DELTA Pro Ultra 18kWh Battery Portable Energy Storage is engineered to extend the runtime and capacity of the DELTA Pro Ultra Inverter System. This high-performance modular battery enables users to add scalable backup power for home, RV, or mobile applications.
Product Overview
Achieve long-lasting energy independence with the EcoFlow DELTA Pro Ultra 6kWh Battery. Each unit adds an additional 18kWh capacity to the DELTA Pro Ultra Inverter System, supporting up to two days of backup and scaling up to 90kWh for extended coverage.
Whether used at home or off-grid, this stackable module offers seamless setup, space-conscious design, and reliable output. Its durable shell and dimensions of 26×18×8 in (including mat) fit into a wide range of environments. Ideal for those prioritizing efficient energy management and professional-grade power solutions.
Note: Requires EcoFlow DELTA Pro Ultra Inverter to operate.
Features
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Expandable Capacity: Adds 18kWh of additional energy storage to the DELTA Pro Ultra system
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Stackable Integration: Designed for vertical mounting with secure configuration tabs (available upon request when purchasing 3+ battery units)
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Quick Installation: Plug-and-play setup enables fast deployment
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Scalable Storage: Supports up to 90kWh total capacity for long-term backup needs
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Compact Dimensions: Measures 26×18×8 in, allowing easy fit into residential or mobile setups
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Secure Operation: Built for long-term use with a reinforced exterior and stable footprint
What's Included
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EcoFlow DELTA Pro Ultra 3 Batteries
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Battery connection cables
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Safety Guide
Shipping information
Free Shipping to the contiguous 48 United States.
Alaska, Hawaii, Puerto Rico, Saipan, Guam & U.S. Territories
These areas incur additional shipping charges on most items (typically $30–$400, depending on size, weight, and lithium battery regulations).
All shipments are fully insured.
Please message us for your exact shipping quote here
