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.
Zoom
Hot
New
In stock
Pre-order
Out stock
EcoFlow DELTA Pro Ultra X Inverter with Batteries
$8,099.00
FOUND A LOWER PRICE?
Let us know and we will beat it. Get the best deal online, Always.
Authorized Dealer
Full Manufacturer Warranty Included
Free Shipping, No Sales Tax*
No Sales Tax Outside Wisconsin
30 Day Return Window
Clear Policies. No Runaround.
Specialist Support Team
Pre And Post Purchase Assistance
Description
Shipping & Easy Returns
Why Buy From Us
EcoFlow DELTA Pro Ultra X
Whole-Home Power. Unbound.
12-36kW Output - High Power. High IQ.
DELTA Pro Ultra X scales from 12 to 36kW. With a new Adaptive Start algorithm, it intelligently identifies connected appliances and tailors startup for each, seamlessly handling surges up to 45kW and high-demand appliances like a 5-ton AC.
Get Through Any Outage
Start with 12kWh. Scale instantly to 180kWh
with up to 30 plug-in expansion batteries—no tools, no hassle. Power grows with your needs.
Plug your generator into DELTA Pro Ultra X for seamless backup.
With the EcoFlow FlowMaster Generator Rectifier, you can charge while delivering up to 12kW output—no downtime, no compromise. Compatible with all major portable generators.
Take in 10kW solar input—enough to recharge 12kWh to 80% in just around 1 hour.
Even during storm season, enjoy a full daily recharge and steady, unshakeable energy.
The Fastest Installation: 7 Days, 3 Steps
DAY 1-2: Installer Match
After your installation order is placed, we'll match you with an EcoFlow Authorized Installer.
DAY 3-6: Site Visit
An Authorized Installer will schedule a visit to your home to assess your setup and plan installation.
DAY 7: One-Day InstallationYour Smart Home Panel 3 is wired, your EcoFlow app is synced, and your system is fully live. We provide end-to-end support—so your home is powered, connected, and protected from day one.
Energy That Can Move With You
DIY Solar + Plug-and-Play Batteries
Smart & Reliable When It Matters Most
Auto-Recharging · 20ms Auto Switchover · 32 Circuits · Intelligent Control
Before the Storm: Get Alerts
Storm Guard Mode sends real-time alerts through the app and can automatically charge your DELTA Pro Ultra X to 100% using solar or grid power.
When the Storm Hits: Lights Stay On
EcoFlow DELTA Pro Ultra X, paired with the Smart Home Panel 3 or Smart Gateway, switches your whole home from grid to battery power in under 20ms—faster than a blink. The lights stay on, Wi-Fi stays up, and even the game console keeps running. Zero delays. Zero disruptions.
During the Storm: Extended Backup Time
With Smart Home Panel 3, tag appliances by priority in the app. Essentials stay powered while non-essentials are throttled—extending backup time by up to 42%. EcoFlow AI Assistant fine-tunes power use in real time, adapting to weather, usage, and solar input.
Your 24/7 Money Saver
Here's a Typical Day of Savings
Day and night, the system intelligently shifts between solar, storage, and off-peak rates—maximizing every watt to get you the best deal. Here's what that might look like on a typical day of use.
Compatible with Existing Rooftop Solar - No Wasted Watts
With the EcoFlow Current Sense Transformer, every extra watt is redirected to your DELTA Pro Ultra X Smart Extra battery—never wasted or sold back to the grid for pennies.
The Highest Safety Standards
The first EV-grade full-tab cells deliver higher capacity with lower resistance, less heat, and longer-lasting performance. 25% More Efficient power flow (thanks to lower resistance: 1.5 mΩ vs. 2 mΩ) 25% Less Self-Heating
EV-grade full-tab cells
Perfectly matched cells ensure identical capacity, voltage, and resistance, minimizing wear and maximizing battery life. 24/7 Self-Maintenance: Automatic SOC balancing maximizes efficiency across the battery's entire lifespan.
Durable battery pack
Local BMS - X-Guard® System: 44+ safeguards and comprehensive monitoring ensures all-around safety. Safeguards: overcharge/discharge, extreme temperatures, short circuits, component failures, and more Cloud BMS - Big Data Protection: 100+ anomaly detectors run 24/7, with instant alerts, local service response, and remote emergency support.
Dual BMS Protection
Power Protection: 1.2M circuit samples/sec, millisecond-level anomaly detection for inverter and battery. Connection Monitoring: Intelligent cable and interface safeguards track heat, recognize faults, and allow instant shutdown for total electrical security. Load Isolation: Continuous voltage/current monitoring with triple-layer isolation. Faulty devices are cut off automatically while critical loads stay powered.
3-Level System Safety Architecture
Heats batteries in extreme cold for safe charging and longer runtime, while high-temp protection allows charging even at up to 45°C (113°F).
Smart Extreme-Weather Protection
Features
- 100% Whole-Home Power Station: Delivers 12-36kW output and 12-180kWh capacity.
- Plug&Play design, installed in 7 Days. Save up to 80% on Time and Cost
- Smart & Reliable When It Matters Most, 20ms Auto switchover
- Save up to $6,000/year, 3-Year ROI
- End-to-End System Protection, Industry's Highest Safety Certification
Specifications
EcoFlow DELTA Pro Ultra X Inverter
General
- Dimensions: Approx. 27 in x— 19 in x— 9 in
- Net Weight: Approx. 76.06 lb
- Ingress Protection Rating: IP54
- Monitoring Mode: LCD
Input
Power Input/Output Port Options:
- 100-120V, 50/60Hz, 1800W 15A (Cable 5-15P to 5P8)
- 120/240V, 50/60Hz, 7200W 30A (Cable L14-30 to 5P8)
- 120/240V, 50/60Hz, 12000W 50A (Cable J1772 to 5P8)
- 120/240V, 50/60Hz, 12000W 50A (Cable 14-50 to 5P8)
- 120/240V, 50/60Hz, 12000W 50A (Cable 5P8 to 5P8)
PV Input Port (x—2):
- Voltage: 80-500V⎓
- Current: 15A MAX
- Power: 5kW MAX per port, 10kW total
Output
AC Output Port — Discharge only:
- Total: 120/240V 60Hz 12000W
- NEMA 5-20 (x—2): 120V 20A
- NEMA L14-30 (x—1): 120/240V 30A
- NEMA 14-50 (x—1): 120/240V 50A
Power Input/Output Port:
- 120/240V 60Hz 12000W 50A
Operating Environment
- Operating Temperature: -4°F to 122°F
- Note: Above 45°C (113°F), AC discharge power derates to 90%.
- Storage Temperature: -4°F to 122°F
- Operating Humidity: <90%
- Operating Altitude: <3000m
- Communication: Wi-Fi / Bluetooth
Ecoflow DELTA Pro Ultra X 6kWh Battery
General Information
- Net Weight: Approx. 111.3 lb
- Dimensions: Approx. 26 in x— 18 in x— 8 in
Battery
- Capacity: 102.4V⎓60A, 6,144Wh
- Cell Material: LFP (LiFePO₄)
Protection Types:
- Overvoltage protection
- Overload protection
- Overtemperature protection
- Short-circuit protection
- Low temperature protection
- Low voltage protection
- Overcurrent protection
Operating Environment
- Operating Temperature: -4°F to 113°F
- Storage Temperature: -4°F to 113°F
- Operating Humidity: <90%
- Operating Altitude: <3000m
Warranty
Energy Systems Central Stores is an authorized retailer of EcoFlow products. Because of this, we pass on EcoFlow's manufacturer 3-Year warranty to you.
Choosing the right retailer matters, especially for critical power and off-grid systems. Here’s what sets Energy Systems Central apart.
- Free Shipping Nationwide: Transparent pricing with no hidden fees at checkout.
- Best Price Assurance: If you find the same product offered for less, we’ll review and match it where applicable.
- Easy 30-Day Returns: Clear, straightforward return policies designed for peace of mind.
- Expert-Led Support: Speak directly with knowledgeable specialists who understand the products. Call us at 888-332-7989.
FREQUENTLY ASKED
QUESTIONS
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.
