EcoFlow’s Delta Pro series is known for delivering high-capacity, expandable solar generators for both home backup and off-grid use. The original EcoFlow Delta Pro set the bar, but the new Delta Pro 3 brings substantial upgrades in almost every category.
This guide compares the specs, features, and key differences between the EcoFlow Delta Pro and Delta Pro 3 to help you choose the right option. Based on technical specifications and early user feedback, here’s how they stack up.
| Preview | Product | Price | |
|---|---|---|---|
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EF ECOFLOW Portable Power Station 3600Wh DELTA Pro, 120V AC… |
$2,799.00
$1,899.00 |
Buy on Amazon |
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EF ECOFLOW DELTA Pro 3 Portable Power Station, 4096Wh LFP… | $3,699.00 $2,799.00 | Buy on Amazon |
EcoFlow Delta Pro vs Delta Pro 3 Specs Comparison
| Feature | EcoFlow Delta Pro | EcoFlow Delta Pro 3 |
|---|---|---|
| Battery Capacity | 3600Wh | 4096Wh |
| Inverter Power | 3600W (7200W surge) | 4000W (8000W surge) |
| Battery Chemistry | LiFePO4 | LFP (LiFePO4) |
| Expandable Capacity | Up to 25kWh | Up to 48kWh |
| Max Solar Input | 1600W | 4000W |
| AC Charging Speed | 1800W (1.9 hrs full) | 2900W (1.1 hrs full) |
| Weight | 99 lbs (45 kg) | 115.7 lbs (52.5 kg) |
| Dimensions | 25 × 11.2 × 16.4 in | 27.2 × 10.9 × 16.4 in |
| Output Ports | 15 total | 17 total (incl. 2× NEMA TT-30) |
| App & Connectivity | Yes (WiFi/Bluetooth) | Yes + IoT Control Hub option |
| Price (MSRP) | ~$3,699 | ~$3,899 (at launch) |
Table Caption: EcoFlow Delta Pro vs Delta Pro 3 Specs Comparison
Power & Performance
The Delta Pro 3 delivers a higher inverter output at 4000W, compared to the Delta Pro’s 3600W. It also supports a larger surge capacity (8000W vs 7200W), making it better suited for starting heavy-duty appliances like AC units or well pumps.
Both units use pure sine wave inverters and are capable of powering 240V appliances when paired in a dual-unit setup.
Battery Capacity & Cycle Life
The Delta Pro 3 slightly edges out with a 4096Wh battery versus 3600Wh on the original model. More importantly, the Delta Pro 3 is designed for a significantly larger expansion—up to 48kWh using Smart Extra Batteries or EcoFlow’s Power Kits.
Cycle life remains similar, as both use LiFePO4 cells rated for ~3500 cycles to 80% capacity.
Output Ports & Expandability
Both models offer a variety of AC, USB-A, USB-C, and 12V DC outputs. However, the Delta Pro 3 includes two built-in NEMA TT-30 outputs (ideal for RVs), and more USB-C ports with higher wattage (100W). It also supports more sophisticated modular expansion with the IoT Control Hub, smart transfer switch, and dual-unit kits.
The Delta Pro 3 is more expandable overall—both in wattage and integration with smart energy systems.
Portability & Weight
EcoFlow DELTA Pro Portable Power Station
from: EcoFlow
The original Delta Pro is slightly lighter at 99 lbs versus 115.7 lbs for the Delta Pro 3. Both models include rugged wheels and a telescoping handle for transport, but neither is particularly lightweight. If portability is a top concern, the Delta Pro may be easier to manage.
Charging Options
This is where the Delta Pro 3 shines. It supports up to 2900W AC charging (versus 1800W), and up to 4000W solar input—more than double the Delta Pro’s solar input cap. This makes the Delta Pro 3 far more efficient for solar-only users or those in need of fast recharge times.
Both also support EV charging station input, car charging, and dual-input methods.
Price & Value
The original Delta Pro launched around $3,699 and is still available at discounted prices depending on retailers. The Delta Pro 3 launched at ~$3,899 but offers significantly more power, faster charging, and greater expandability.
If budget is a concern and your needs are moderate, the Delta Pro remains a great value. But if you’re investing in a future-proof system or full-home backup, the Delta Pro 3 justifies the higher price.
Final Verdict: Which One Is Right for You?
Choose the EcoFlow Delta Pro if:
- You want reliable whole-home backup at a lower cost
- Portability is more important than maximum output
- You don’t need 4000W solar input or extra TT-30 ports
Choose the EcoFlow Delta Pro 3 if:
- You need faster AC/solar charging and higher output power
- You plan to scale your system over time (up to 48kWh)
- You want RV-ready outputs and smart home integration
For most users building a long-term off-grid or home backup system, the Delta Pro 3 is the better investment.
FAQs
Can the Delta Pro 3 work with Delta Pro accessories?
No, EcoFlow confirmed that the Delta Pro 3 uses a different expansion system and is not backward-compatible with Delta Pro accessories like Extra Batteries or the Smart Home Panel.
Does the Delta Pro 3 support 240V appliances?
Yes, when used in a dual-unit setup with the IoT Control Hub and Smart Home Panel 2.
How long will each model last?
Both units are rated for ~3500 cycles to 80% capacity, which equates to 10+ years of regular use.
Individual buyer’s guides:
- EcoFlow DELTA Pro Buyer’s Guide: Power, Specs & Use Cases
- EcoFlow DELTA Pro 3 Buyer’s Guide: Ultimate Off-Grid Power Solution
Last update on 2025-05-12 / Affiliate links / Images from Amazon Product Advertising API