When choosing a portable power station, the EcoFlow Delta 2 Max and Delta Pro are two standout models from the same brand.
Let’s break down how they compare in terms of key features and unexpected insights, so you can decide which one fits your lifestyle.
Check out our full EcoFlow review to learn more about the brand’s entire line of portable power stations.
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EcoFlow Delta 2 Max vs Delta Pro Key Features
Capacity and Expandability
The Delta 2 Max is great for most outdoor adventures and light home use. But if you’re powering a large home or prepping for extended outages, the Delta Pro’s expansion potential is unbeatable.
- Delta 2 Max: 2048Wh capacity, expandable up to 6,1kWh with two extra batteries.
- Delta Pro: 3600Wh capacity, expandable up to a massive 25kWh with additional batteries and a smart generator.
| Capacity | DELTA 2 Max | DELTA Pro |
|---|---|---|
| Capacity | 2048Wh | 3600Wh |
| Expandable Capacity | Up to 6,144Wh | Up to 25,000Wh |
Output Power
The Delta Pro can handle larger appliances like central AC units or EVs, whereas the Delta 2 Max is better suited for smaller household devices or camping setups.
- Delta 2 Max: 2400W continuous output (surge 4800W), with X-Boost supporting devices up to 3400W.
- Delta Pro: 3600W continuous output (surge 7200W), with X-Boost handling devices up to 4500W.
| Output Power | DELTA 2 Max | DELTA Pro |
| Continuous Output | 2,400W | 3,600W |
| Surge | 4,800W | 7,200W |
| Max Device Power (X-Boost) | 3,400W | 4,500W |
Outlets & Ports
| Outlets & Ports | DELTA 2 Max | DELTA Pro |
|---|---|---|
| Total | 15 | 14 |
| AC Outlets | 6 outlets, 2400W total | 5 outlets, 3600W total |
| USB-A Ports | 2 ports, 12W max per port | 2 ports, 12W max per port |
| USB-A Fast Charge Ports | 2 ports, 18W max per port | 2 ports, 18W max per port |
| USB-C Ports | 2 ports, 100W max per port | 1 port, 100W max per port |
| Car Port | 1 port, 126W max | 1 port, 126W max |
| DC5521 Ports | 2 ports, 38W max per port | 2 ports, 38W max per port |
| Anderson | n/a | 1 port , 30A |
Battery Life and Durability
While both have long-lasting LiFePO4 (LFP) batteries, the Delta Pro has more estimated charge cycles than the Delta 2 Max, potentially making it a better long-term investment.
| Model | Charge Cycles |
| Delta 2 Max | 3,000 cycles to 80% capacity |
| Delta Pro | 3,500 cycles to 80% and up to 6,500 cycles to 50% |
Charging Times
The Delta 2 Max’s faster charging makes it more convenient for quick turnarounds, but the Delta Pro’s wide range of input options (even EV stations!) adds flexibility.
| Charging Method | DELTA 2 Max | DELTA Pro |
|---|---|---|
| AC Charging | 1.1 hours (2400W) | 2.7 hours (1800W) |
| Solar + AC | 1 hour (2400W) | 3 to 6 hours (1600W solar input) |
| Solar Dual Port | 2.3 hours (1000W) | 4.5 hours (Turbo Alternator, 800W) |
| Car Charging | 21.3 hours (96W) | 10+ hours (12V/24V) |
| Alternator Charging | Not supported | 1.8 hours (3000W) |
| AC + Solar + Smart Generator | Not supported | 2 hours (6500W) |
Size and Portability
The Delta 2 Max is lighter, making it a better pick for trips or small spaces.
| Model | Weight | |
| Delta 2 Max | 50 lbs. | |
| Delta Pro | 99 lbs. |
Bluetooth and Wi-Fi
Both models feature app connectivity through Wi-Fi and Bluetooth, giving you remote control over charging, output, and performance monitoring.
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Final Thoughts: Which One Should You Choose?
- Pick the Delta 2 Max if you want something lighter, faster to charge, and ideal for camping, tailgating, or basic home use.
- Choose the Delta Pro if you need serious power, long-term durability, and the ability to scale up for large homes or emergencies.
The Delta Pro’s compatibility with EV charging stations makes it a game-changer for electric vehicle owners—a feature not found in the Delta 2 Max.
Think about your power needs, how you plan to use it, and your budget before making the call. Both models deliver outstanding performance, but the right choice depends on your priorities.
See what real users are saying about the Delta 2 Max on Amazon.
Read customer reviews of the Delta Pro on Trustpilot.