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EcoFlow DELTA Pro Ultra X
Whole-Home Power. Unbound.
12–36kW Output — High Power. High IQ.
EcoFlow DELTA Pro Ultra X scales effortlessly from 12kW to 36kW, delivering intelligent whole-home power. Its advanced Adaptive Start algorithm identifies connected appliances and customizes startup behavior for each load—smoothly handling power surges up to 45kW and supporting demanding equipment like a 5-ton air conditioner.
Built to Outlast Any Outage
Start at 12kWh. Expand instantly to 180kWh.
Add up to 30 plug-and-play expansion batteries—no tools required. Your energy system grows as your needs evolve, whether for longer outages or increased daily usage.
Generator-Ready for Unlimited Backup
Connect your generator directly to DELTA Pro Ultra X using the EcoFlow FlowMaster Generator Rectifier. Charge the system while delivering up to 12kW of output—no downtime, no interruptions. Compatible with most major portable generators.
Up to 10kW Solar Input for Ultra-Fast Recharging
Capture up to 10kW of solar power—enough to recharge 12kWh to 80% in around one hour. Even during storm season, enjoy full daily recharging and rock-solid energy independence.
The Fastest Installation: 7 Days, 3 Simple Steps
DAY 1–2: Installer Match
Once your installation order is placed, you’ll be matched with a certified EcoFlow Authorized Installer to begin the process.
DAY 3–6: Site Visit
Your installer will visit your home to assess electrical infrastructure, finalize system placement, and plan a smooth installation.
DAY 7: One-Day Installation
Your Smart Home Panel 3 is installed, the EcoFlow app is synced, and your system goes live. End-to-end support ensures your home is powered, connected, and protected from day one.
Energy That Moves With You
DIY Solar + Plug-and-Play Batteries
Smart, Reliable Power When It Matters Most
Auto-Recharging · 20ms Auto Switchover · 32 Circuits · Intelligent Control
Before the Storm: Stay Ahead
Storm Guard Mode sends real-time alerts and automatically charges your system to 100% using solar or grid power when severe weather is detected.
When the Storm Hits: Zero Interruptions
When paired with Smart Home Panel 3 or Smart Gateway, DELTA Pro Ultra X switches your entire home to battery power in under 20ms—keeping lights, Wi-Fi, and electronics running without a blink.
During the Storm: Extended Runtime
Prioritize essential circuits in the app while throttling non-essentials to extend backup time by up to 42%. EcoFlow’s AI Assistant dynamically optimizes power based on weather, usage, and solar input.
Your 24/7 Energy Cost Saver
A Typical Day of Smart Savings
The system intelligently shifts between solar, stored energy, and off-peak grid rates—maximizing savings and efficiency around the clock.
Compatible with Existing Rooftop Solar — No Wasted Energy
With the EcoFlow Current Sense Transformer, surplus solar power is automatically stored in your DELTA Pro Ultra X batteries instead of being sent back to the grid for minimal returns.
Industry-Leading Safety Standards
EV-grade full-tab battery cells deliver higher capacity, lower resistance, and reduced heat—resulting in 25% more efficient power flow and 25% less self-heating.
EV-Grade Full-Tab Cells
Precisely matched cells ensure consistent capacity, voltage, and resistance. Automatic SOC balancing maintains peak efficiency and extends battery lifespan 24/7.
Durable Battery Pack
Local BMS with EcoFlow X-Guard® provides 44+ safety protections, while Cloud BMS runs 100+ anomaly detectors nonstop—delivering instant alerts and remote emergency support.
Dual BMS Protection
Millisecond-level monitoring tracks power flow, cables, and connections. Faulty loads are isolated automatically while essential circuits stay online.
3-Level System Safety Architecture
Smart thermal management heats batteries in extreme cold and supports charging at temperatures up to 45°C (113°F) for dependable performance year-round.
Smart Extreme-Weather Protection
EcoFlow DELTA Pro Ultra X Inverter
General
Input
Power Input/Output Port Options:
PV Input (×2):
Output
Operating Environment
EcoFlow DELTA Pro Ultra X 6kWh Battery
General
Battery
Protections
Operating Environment
Energy Systems Central Stores is an authorized EcoFlow retailer. Your purchase includes EcoFlow’s official 3-year manufacturer warranty.
Free Shipping Across the United States.Read our full Shipping Policy here.
Market-Leading 30-Day Returns Process.Read more about our Returns Policy here.
Choosing the right retailer matters, especially for critical power and off-grid systems. Here’s what sets Energy Systems Central apart.
Yes. We provide free standard shipping on all orders shipped within the United States. Shipping costs are included in the listed price with no hidden fees at checkout.
Most orders are processed within 1 to 2 business days. Delivery times typically range from 3 to 7 business days depending on your location, carrier scheduling, and product size.
We offer a 30 day return window for eligible products that are unused and in original condition. Our support team will guide you through the return or exchange process if needed.
Absolutely. Yes. Our knowledgeable product specialists are available by phone, live chat, or email to help you select the right equipment for your application.
Most products include a manufacturer warranty, typically starting at one year. Warranty terms vary by brand and model and are listed on each product page.
Yes. We are an authorized retailer and only sell brand new, genuine products sourced directly from manufacturers or their approved distributors.
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