Skip to content
LOWEST PRICES GUARANTEED | NO SALES TAX | SPEAK WITH AN EXPERT: (916)-999-9937
Lowest Prices Guaranteed | SPEAK WITH AN EXPERT: (916)-999-9937

EcoFlow DELTA Pro Ultra X Smart Extra Battery

by EcoFlow
SKU
Save up to $4,497.00 Save $1,100.00
Original price $3,299.00
Original price $3,299.00 - Original price $13,196.00
Original price $3,299.00
Current price $2,199.00
$2,199.00 - $8,699.00
Current price $2,199.00
🚚 Fast Delivery Times

💰 Lowest Price Guaranteed

🛡️Premium Authorized EcoFlow Dealer - Warranty Included

🧑🏻‍💼Post-Purchase Lifetime Customer Support

❓Questions? Talk to Experts (916)-999-9937

EcoFlow DELTA Pro Ultra X Smart Extra Battery

DESCRIPTION & FEATURES:

  • Expandable capacity - Increase the capacity of DELTA Pro Ultra X with an extra 6144Wh.
  • Plug-and-play without setup. And use the EcoFlow app to monitor and control.
  • The Highest Safety Standards: EV-grade LFP cells, dual BMS, and 3-level safety architecture. 
  • 5-Year Full Warranty 

EcoFlow DELTA Pro Ultra X

Whole-Home Power. Unbound.

  • High Power. High IQ.

12–36kW Output

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
12–180kWh Capacity—Power That Lasts
  • Get Through Any Outage

12–180kWh Capacity—Power That Lasts 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.

10kW Solar Surge³ 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.

  • 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
  • Durable battery pack
  • Dual BMS Protection
  • 3-Level System Safety Architecture
  • Smart Extreme-Weather Protection
EV-grade full-tab cells

INCLUDES:

  • 1 X EcoFlow DELTA Pro Ultra X Smart Extra Battery
  • 1 X EcoFlow Battery Connection Cable - 0.65 ft 
  • Safety Guide