EcoFlow Delta Pro 3 Vanlife Power Station Review
Published: November 23, 2025
The EcoFlow Delta Pro 3 is a highly capable power station with solid performance and versatility. It's a cutting-edge alternative to DIY electrical, saving significant time and money, without compromising on what's important. I will go through the details of what makes this product great and how it compares the previous Delta Pro.
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New Improvements
Notable improvements over the previous generation Delta Pro:
- Increased capacity: 4,096Wh (496Wh increase), expandable to 12.2kWh
- Two solar ports: 30-150V⎓15A (1,600W) and 11V-60V⎓20A (1,000W)
- Quieter fans: new and improved fans (as low as 30dB)
- Increased AC output: 4,000W total (8,000W surge)
- More AC ports: now includes 120/240V~16.7A and 240V~16.7A ports.
- Battery Lifespan: 4,000 cycles (extended from 3,500 cycles)
- Faster UPS switchover speed: 10ms switchover (20ms faster)
Suggestions to EcoFlow
A few things I would like to see improved on the next version:
- Lower the minimum voltage for high-PV port: My main complaint for this unit is the 30V minimum for solar charging. This can impact vanlife users in non-ideal conditions and with a small solar array. For comparison the original Delta Pro is 11V minimum allowing it to start charging with less solar input.
- Increase the DC output to be higher than 30A for those with higher DC power needs. Increasing to 50-60A would set this apart from EcoFlow's smaller Delta 3 Max Plus and Delta 3 Ultra Plus.
- Add back cigarette port: Most other power stations have a DC cigarette port which allows for devices such as fridges to be easily connected. To improve on this further, it could use a locking marine grade port so it isn't prone to wiggling free as is often the case in vehicles.
- Add self-heating: Allow for use where internal temperature could drop below 14°F like is done in the EcoFlow Delta Pro Ultra.
- Add more USB ports: So many modern devices use USB. I think it should contain at least 4x USB C and 4x USB A.
- Relocate ports on sides: Cables sticking out the side are prone to getting bumped, especially the smaller DC cables. The new Delta 3 Ultra Plus resolved this by placing all its ports on the front and back. However, when doing so it's important to provide easy access to the DC on/off button.
Highlights
Reasons to buy
- Supports large series solar array (30-150V⎓15A)
- Two solar input ports (1,600W and 1,000W)
- Large battery capacity (4,096Wh)
- High AC output (4,000W total / 8,000W surge)
- 12V Anderson Powerpole out (12.6V⎓30A, 378W max)
- 4x USB ports (2x USB A / 2x USB C)
- Great value (compared to EcoFlow Power Kit or custom DIY)
- Supports control screen (separate accessory)
- EV station charging (separate accessory)
Reasons to avoid
- Main solar port minimum voltage is 30V (original Delta Pro is 11V)
- Expensive compared to original Delta Pro now on clearance ($2,499 vs $1,399)
- Size or weight (27.3 × 16.2 × 13.4" / 114lbs)
- No cigarette lighter port (can buy 3rd party adapter)
Detailed Comparison
Here’s a side-by-side breakdown of the Delta Pro 3 and original Delta Pro:
| Model | Delta Pro 3 | Delta Pro |
|---|---|---|
| AKA | DP3 | DP |
| Photo |  |  |
| Links | Details | Manual | Details | Manual |
| Price | $2,499 | $1,399 |
| Capacity | 4,096Wh | 3,600Wh |
| Extra battery | 2x | 2x |
| AC output | 4,000W total 8,000W surge | 3,600W total 7,200W surge |
| AC ports | ×4 (20A each) x1 (30A) x1 (120/240V~16.7A) x1 (240V~16.7A) | x4 (20A each) x1 (30A) |
| DC output | 12.6V⎓30A, 378W | 12.6V⎓30A, 378W |
| Anderson | 30A, 378W | 30A, 378W |
| Cigarette | none | 8A, 100W |
| DC5521 | 5A | x2 3A, 38W |
| Solar input 1 | 30-150V⎓15A 1,600W | 11-150V⎓15A 1,600W |
| Solar input 2 | 11V-60V⎓20A 1,000W | none |
| Alternator input 1 | 100-800W | 100-800W |
| AC input | 15A 1,800W | 15A 1,800W |
| USB A | 2x | 4x |
| USB C | 2x | 2x |
| Size (in) | 27.3 × 13.4 × 16.2" | 25 × 11.2 × 16.4" |
| Size (mm) | 693 × 341 × 410.4 mm | 635 × 285 × 416 mm |
| Weight | 114lbs (51.5 kg) | 99lbs (45kg) |
1. Expected to increase to 1000W for each power station with the release of new gen 2 alternator chargers.
Full Specifications
Accessories
DC Fuse Panel
Allows you to safely connect DC appliances to your power station (fridge, heater, lights, etc.).
Alternator Chargers
More reliable than solar, these units pull power from your vehicle to quickly charge your power station as you drive.
Solar Panels
EcoFlow offers both mountable and portable solar panels, some of which are rigid, flexible, traditional, or bifacial. While EcoFlow provides various solar panel options and bundles, always prioritize panels that physically fit your vehicle; using other reputable brands is perfectly fine.
Extra Batteries
Supports two of the following extra batteries. Some of EcoFlow's alternator chargers use the same port which can limit you to a single extra battery.
Delta Pro 3 Smart Extra Battery4096Wh extra battery
Price: $2,099 (2x $3,099)
Delta Pro Smart Extra Battery3600Wh extra battery
Price: $1,399
Other Accessories
Remote control, solar cables, and adapters:
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