Quick verdict
The DELTA 2 Max is the portable one: a fridge, a shed full of chargers, a camp or corded tools at the fence line. The DELTA Pro 3 is the home backup one: 240 V, a well pump, a panel through a transfer switch. Most yards want the 2 Max; a house that needs to stay running wants the Pro 3.
EcoFlow DELTA 2 Max Portable Power Station
The DELTA 2 Max is the EcoFlow 2,048 Wh LiFePO4 power station with 2,400 W of AC output, up to 3,400 W with X-Boost, expansion to about 6 kWh with extra batteries, 1,000 W of solar input and a fast wall charge. It is the size most households can carry and the one that runs a shed, a camp or a fridge through an outage.
EcoFlow DELTA 2 Max versus EcoFlow DELTA Pro 3 portable power stations: capacity, AC output, 240 V support, solar input, expansion, weight and price compared from published specifications.
The picks at a glance
| Tool | Best for | Score /100 | |
|---|---|---|---|
| EcoFlow DELTA 2 Max Portable Power Station | Best Portable All-Rounder | 9.0 | Check price |
| EcoFlow DELTA Pro 3 Portable Power Station | Best for Whole-Home Backup | 9.2 | Check price |
The picks, reviewed
EcoFlow DELTA 2 Max Portable Power Station
The DELTA 2 Max is the EcoFlow 2,048 Wh LiFePO4 power station with 2,400 W of AC output, up to 3,400 W with X-Boost, expansion to about 6 kWh with extra batteries, 1,000 W of solar input and a fast wall charge. It is the size most households can carry and the one that runs a shed, a camp or a fridge through an outage.
Reasons to buy
- 2 kWh in a carryable box
- 2,400 W with X-Boost to 3,400 W
- Fast wall and solar charging
- Expandable to about 6 kWh
Reasons to avoid
- 120 V only
- Heavy for one person over distance
- Cannot run a 240 V well pump
EcoFlow DELTA Pro 3 Portable Power Station
The DELTA Pro 3 is the EcoFlow 4,096 Wh LiFePO4 power station with 4,000 W of AC output at 120 or 240 V, expansion to 12 kWh and beyond with extra batteries, 2,600 W of solar input, wheels and a handle. It runs a well pump, a central air unit or a whole panel through a transfer switch.
Reasons to buy
- 4 kWh and 4,000 W
- 120 and 240 V output
- Expandable to 12 kWh and more
- Wheels and handle
Reasons to avoid
- Very heavy
- Costs far more
- Overkill for camping and sheds
Where these two differ
Both are EcoFlow LiFePO4 stations with fast charging and app control. The DELTA 2 Max holds 2 kWh, puts out 2,400 W at 120 V and can be carried. The DELTA Pro 3 holds 4 kWh, puts out 4,000 W at 120 or 240 V and rolls on wheels. One is a portable power supply for the yard, the shed and the camp; the other is a home backup unit that can run a panel.
This comparison is based on the published specifications and manuals for both stations and on recurring owner feedback. We have not run either station ourselves.
| Specification | DELTA 2 Max | DELTA Pro 3 |
|---|---|---|
| Capacity | 2,048 Wh | 4,096 Wh |
| AC output | 2,400 W | 4,000 W |
| Voltage | 120 V | 120 and 240 V |
| Solar input | 1,000 W | 2,600 W |
| Portability | Carry | Wheels |
| Price | Moderate | High |
What each runs
The 2 Max runs a fridge for a day, a shed of battery chargers for a week of evenings, a corded circular saw at the fence line and a camp with lights, a cooler and a fan. The Pro 3 does all of that and adds a 240 V well pump, a central air unit on soft start, or a whole panel through a transfer switch.
Portability
The 2 Max is a two-handed carry for one person and fits a car trunk. The Pro 3 rolls on wheels and is a two-person lift into a vehicle.
Charging
Both charge from the wall fast, reaching most of their capacity in about an hour. The 2 Max takes 1,000 W of solar and fills from a modest array in a day; the Pro 3 takes 2,600 W and wants a bigger array to fill in the same time.
Expansion
The 2 Max expands to about 6 kWh with two extra batteries. The Pro 3 expands to 12 kWh with its own extra batteries and further with a second unit.
Yard jobs this decides
A shed, a camp, corded tools far from an outlet, a fridge in an outage: the 2 Max. A well pump, a sump pump on 240 V, a furnace and a panel: the Pro 3.
Ports and app
Both stations carry several grounded AC outlets, USB-C ports that charge a laptop at full speed, USB-A ports for phones and a 12 V car socket for a cooler or a tire inflator, and both are controlled from a phone app over Bluetooth or Wi-Fi that shows charge level, sets charging speed and switches outputs remotely. Both pass through power while charging, so a fridge stays on while the station refills from the wall or from solar. Check the number of AC outlets against the shed or camp setup; both makers list the count on the spec sheet.
Common owner complaints
2 Max owners mention weight for one person and 120 V only. Pro 3 owners mention weight and price. Both are reliable with long cycle ratings.
Which one should you buy
Buy the DELTA 2 Max for the yard, the shed and the camp. Buy the DELTA Pro 3 for home backup with 240 V loads.
Our verdict
The DELTA 2 Max takes this comparison for yard and portable use. The DELTA Pro 3 is the better station for a house that must stay on.
How we research
This comparison is built from the published specifications, manuals and warranty terms of both products and from recurring owner feedback. We have not run either product ourselves; where the makers do not publish a figure we say so rather than guess.
What to look for
Job
Portable use favors the 2 Max; home backup favors the Pro 3.
240 V
Only the Pro 3 runs a well pump or dryer.
Weight
The 2 Max is carryable; the Pro 3 rolls.
Price
The Pro 3 costs far more.
Our verdict
The DELTA 2 Max is the portable one: a fridge, a shed full of chargers, a camp or corded tools at the fence line. The DELTA Pro 3 is the home backup one: 240 V, a well pump, a panel through a transfer switch. Most yards want the 2 Max; a house that needs to stay running wants the Pro 3.
FAQs
Yes, for a day or more, longer with solar.
Both run a corded saw, drill or electric mower; the Pro 3 also runs a 240 V tool.
No; each has its own extra battery.
Both reach most of their capacity in about an hour; the Pro 3 has more to fill.
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