1. Is the EcoFlow DELTA Pro Ultra X a home backup battery or a solar generator?
t’s both—and more. The Ultra X combines a 12 kW hybrid inverter with modular 6 kWh LFP batteries that scale up to 180 kWh of storage. It functions as a whole-home backup, solar-charging hub, and portable power plant—covering grid, solar, generator, or EV inputs all in one.
2. Can the Ultra X power my entire home?
Yes. A single inverter provides 12 kW continuous and 18 kW surge, enough for HVAC, well pumps, and large appliances. With up to three inverters in parallel, it delivers 36 kW total output, covering even the heaviest residential loads
3. How much solar can the Ultra X handle, and does it work with my existing panels?
Each Ultra X inverter accepts up to 10 kW of DC solar input from dedicated solar arrays wired directly into the system. You can link up to three inverters for 30 kW of total PV input.
If you already have a grid-tied solar system, that system won’t directly charge the Ultra X batteries — you’d need to add a separate PV input or consider the EcoFlow Ocean Pro for full grid-integrated solar operation.
4. Is the Ultra X eligible for the 30 % Federal Solar Tax Credit (ITC)?
Yes. When installed with solar or as a storage-ready hybrid system, Ultra X qualifies under the Residential Clean Energy Credit (30 %). That includes both battery and inverter hardware, installation labor, and solar integration costs.
5. How many batteries can I add?
Each inverter supports up to 10 batteries (6 kWh each), and you can connect up to three inverters for 30 batteries total—a massive 180 kWh system. Expand anytime: start small and add more storage later as your needs grow.
6. Can the Ultra X run critical loads and large appliances simultaneously?
Absolutely. With 12 kW per inverter, the Ultra X can power central A/C, EV chargers, laundry, well pumps, and more—all at once. The Smart Home Panel 3 manages up to 32 circuits with 20 ms transfer for seamless power during outages.
7. Is the Ultra X portable?
Yes—it's the most powerful portable system ever built. Despite its whole-home capability, each inverter and battery module can be moved, stacked, or redeployed. Homeowners, renters, and contractors can take backup power anywhere.
8. What batteries does the Ultra X use, and how long do they last?
EcoFlow’s LFP (Lithium Iron Phosphate) chemistry delivers more than 3,500 cycles before dropping to 80 % capacity—over 10 years of daily use. The packs feature smart BMS protection, field-serviceable connectors, and hot-swappable design.
9. How quickly can the Ultra X recharge?
With up to 8.8 kW of charging input per inverter, you can recharge two batteries in about 2 hours using solar, grid, or generator power. Multi-source charging (solar + grid + generator) accelerates recovery even further for long outages.
10. How does the Ultra X compare to other portable systems?
No competitor comes close. Bluetti AC500 tops out near 10 kW with 18 kWh capacity; Jackery’s newest stack is under 4 kW per unit. The Ultra X delivers 12 kW / 180 kWh / 32-circuit smart-control—a class of its own in the portable backup world.
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