This guide compares the specs, features, and key differences between the EcoFlow Delta Pro and EcoFlow Delta Pro Ultra to help you decide which model suits your power needs, portability preferences, and budget.
Both are high-capacity solar generators built for whole-home backup, RVs, or off-grid systems—but they differ significantly in inverter power, expandability, and charging speed.
Below is a full side-by-side spec comparison.
EcoFlow Delta Pro vs Delta Pro Ultra Specs Comparison
| Feature | EcoFlow Delta Pro | EcoFlow Delta Pro Ultra |
|---|---|---|
| Battery Capacity | 3,600Wh (expandable to 25kWh) | 6,000Wh (expandable to 90kWh) |
| Inverter Power | 3,600W (7,200W surge) | 7,200W (12,000W surge) |
| Battery Chemistry | LiFePO4 | LiFePO4 |
| Cycle Life | 3,500 cycles (to 80%) | 3,500 cycles (to 80%) |
| Weight | 99 lbs | 126 lbs (main unit) |
| Max Solar Input | 1,600W | 5,600W |
| AC Charging | 1,800W | 7,200W |
| 240V Support | Yes (with 2 units + Double Voltage Hub) | Yes (native with 1 unit) |
| Wi-Fi/App Control | Yes | Yes |
| Price Range | ~$3,699 | ~$5,799 |
Table Caption: EcoFlow Delta Pro vs Delta Pro Ultra Specs Comparison
Power & Performance
EcoFlow DELTA Pro Ultra Whole-Home Backup Power
from: EcoFlow
The Delta Pro Ultra delivers more than double the continuous inverter output (7,200W vs 3,600W), making it far more capable of running entire homes or multiple heavy-duty appliances simultaneously. It also offers a surge capacity of 12,000W compared to 7,200W on the Delta Pro.
If you need true whole-home backup or want a turnkey solar generator for off-grid living, the Ultra clearly outperforms here.
Battery Capacity & Cycle Life
While both use LiFePO4 batteries with 3,500+ charge cycles, the Delta Pro Ultra starts with 6,000Wh (vs 3,600Wh on Delta Pro) and scales dramatically. You can expand the Ultra to 90kWh—enough for days of off-grid use. In contrast, the Delta Pro maxes out at 25kWh with multiple add-ons.
For long-term energy independence or critical infrastructure backup, the Ultra is the better fit.
Output Ports & Expandability
EcoFlow DELTA Pro Portable Power Station
from: EcoFlow
The Delta Pro has a solid mix of AC, DC, USB-A/C, and Anderson outputs. The Delta Pro Ultra, being more advanced, adds native 240V output, more smart home integration, and professional-grade transfer switch options.
Expandability is where the Ultra pulls ahead. It supports up to 15 stackable units, while the Delta Pro system caps at two units plus accessories.
Portability & Weight
The Delta Pro is 99 lbs and includes wheels and a telescoping handle—practical for RVs or mobile applications. The Delta Pro Ultra, at 126 lbs (main unit), is less mobile and designed more for stationary or semi-permanent installs.
Choose the Delta Pro if you need frequent portability or easier single-person handling.
Charging Options
Charging speed is another area where the Delta Pro Ultra dominates. With up to 7,200W AC input and 5,600W solar input, it charges faster than almost any other solar generator on the market.
The Delta Pro supports 1,800W AC and 1,600W solar charging, which is respectable but far slower than the Ultra.
Price & Value
At around $3,699, the EcoFlow Delta Pro delivers strong value for RVers, small home backup, and moderate off-grid setups. The Delta Pro Ultra starts at about $5,799, but with significantly more capacity and power.
If you’re investing in a serious home energy solution, the Ultra provides more bang for your buck long-term.
Final Verdict: Which One Should You Choose?
- Choose the EcoFlow Delta Pro if you want a mobile, flexible power station with expandable capacity for RVs, backup power, or light off-grid use.
- Choose the EcoFlow Delta Pro Ultra if you need maximum power, faster charging, and scalable battery storage for full-home backup or permanent off-grid setups.
Both are industry leaders, but the Ultra is designed for users with heavier power needs and a larger budget.
FAQs
Can you use the Delta Pro and Delta Pro Ultra together?
No, they are not compatible with each other. Each system uses a different voltage and architecture.
Is the EcoFlow Delta Pro Ultra worth the upgrade?
If you need over 7,000W of continuous output or plan to scale beyond 25kWh, the Ultra is worth the higher cost.
Do both units support solar charging?
Yes, but the Ultra supports up to 5,600W of solar input, while the Delta Pro is limited to 1,600W.
How long can the Delta Pro Ultra power a home?
With a full 90kWh setup, you could power essentials for 3–5 days or longer depending on usage and solar input.
Individual buyer’s guides:
Last update on 2025-05-13 / Affiliate links / Images from Amazon Product Advertising API