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EcoFlow RIVER 2 ProvsEcoFlow DELTA 3

Both the EcoFlow RIVER 2 Pro and EcoFlow DELTA 3 come from EcoFlow, but they target different use cases. The EcoFlow DELTA 3 offers 1,024Wh of capacity — 256Wh more than its sibling. Below we break down every specification to help you decide which EcoFlow model fits your power needs.

EcoFlow RIVER 2 Pro

EcoFlow RIVER 2 Pro

EcoFlow

$315

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EcoFlow DELTA 3

EcoFlow DELTA 3

EcoFlow

$499

Buy on Amazon

Specifications Comparison

Capacity
768 Wh
1,024 Wh
Continuous Output
800 W
1,800 W
Surge Power
1,600 W
2,700 W
Battery Type
LiFePO4
LiFePO4
Cycle Life
3,000 cycles
4,000 cycles
Charge Time
70 min
56 min (0-100%)
Weight
17.4 lbs
27.6 lbs
Dimensions
10.6 x 10.2 x 8.9 in
15.7 x 8.5 x 10.6 in
Price
$315
$499
Rating
4.5/5
4.8/5

Key Differences Explained

Battery Capacity

The EcoFlow DELTA 3 packs 1,024Wh — 1.3x the EcoFlow RIVER 2 Pro's 768Wh. That extra 256Wh means significantly longer runtime for appliances like mini-fridges, CPAP machines, or power tools.

Output Power

With 1,800W continuous output, the EcoFlow DELTA 3 can handle heavier loads than the EcoFlow RIVER 2 Pro's 800W. This matters for high-draw appliances like microwaves, hair dryers, or power tools that demand consistent wattage.

Cost per Watt-Hour

At $0.41/Wh, the EcoFlow RIVER 2 Pro offers 16% better value per watt-hour than the EcoFlow DELTA 3 ($0.49/Wh). This metric helps you understand the raw cost of stored energy, regardless of other features.

Portability

At 17.4 lbs, the EcoFlow RIVER 2 Pro is 10.2 lbs lighter than the EcoFlow DELTA 3 (27.6 lbs). For camping, tailgating, or emergency kits where you need to carry your power station, that weight difference adds up quickly.

The Bottom Line

The EcoFlow DELTA 3 wins 4 out of 7 comparison categories against the EcoFlow RIVER 2 Pro's 2. It stands out with 1,024Wh capacity and 1,800W output at $499. However, the EcoFlow RIVER 2 Pro may still be the better choice if budget is your top priority.

Choose EcoFlow RIVER 2 Pro if...

  • Budget is a priority — save $184 compared to the EcoFlow DELTA 3
  • Portability matters — at 17.4 lbs, it's 10.2 lbs lighter
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Choose EcoFlow DELTA 3 if...

  • You need maximum battery capacity — 1,024Wh gives you 33% more runtime than the EcoFlow RIVER 2 Pro
  • You need to power high-wattage appliances up to 1,800W
  • Long-term durability is important — 4,000 cycle lifespan
Read Full Review

Frequently Asked Questions

Which is better, EcoFlow RIVER 2 Pro or EcoFlow DELTA 3?
It depends on your needs. The EcoFlow RIVER 2 Pro offers 768Wh capacity with 800W output at around $315. The EcoFlow DELTA 3 provides 1,024Wh and 1,800W for about $499. Choose the EcoFlow DELTA 3 for more capacity, or the EcoFlow RIVER 2 Pro for better value.
Can the EcoFlow RIVER 2 Pro or EcoFlow DELTA 3 power a refrigerator?
A typical residential refrigerator draws 100-400W running and 1,200W surge. The EcoFlow RIVER 2 Pro (800W continuous, 1,600W surge) can handle most fridges. The EcoFlow DELTA 3 (1,800W, 2,700W surge) can handle most fridges.
How long will the EcoFlow RIVER 2 Pro and EcoFlow DELTA 3 last on a single charge?
Runtime depends on your load. At 100W draw: the EcoFlow RIVER 2 Pro (768Wh) runs approximately 6.5 hours, while the EcoFlow DELTA 3 (1,024Wh) runs about 8.7 hours. At 500W draw: 1.3 hours vs 1.7 hours respectively (accounting for ~85% inverter efficiency).

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