SPECIFICATION COMPARISON · UPDATED SEP 28, 2026
EcoFlow RIVER 2 Max
vs BLUETTI EB3A.
Compare more energy against less carrying weight: RIVER 2 Max has 512Wh, while EB3A offers 268.8Wh and a 600W rated output. This is a specification-based analysis with calculated examples, not a hands-on review.
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SIDE-BY-SIDE SPECS
RIVER 2 Max vs EB3A
| Specification | EcoFlow RIVER 2 Max | BLUETTI EB3A |
|---|---|---|
| Battery capacity | 512Wh | 268.8Wh |
| Rated AC output | 500W | 600W |
| Surge output | 1000W | 1200W |
| Weight | 6.1kg | 4.6kg |
| Solar input | 220W | 200W |
| Cycle claim | 3,000 | 2,500 |
| Ports | AC 4 · USB-C 100W | AC 1 · USB-C 100W |
| Reference price | $399 | $299 |
Reference prices are comparison anchors, not live quotes. Confirm price, stock, plug type, and warranty on the retailer page.
RIVER 2 Max holds almost twice the energy.
At 512Wh, the EcoFlow has about 90% more rated capacity than the 268.8Wh EB3A. At a continuous 60W load and 85% efficiency, the simple estimate is 7.3 hours versus 3.8 hours. Longer runtime comes with 1.5kg more weight. Neither is an eight-hour solution at that continuous draw without recharging.
EB3A is lighter and rated 100W higher.
The BLUETTI weighs 4.6kg and carries a 600W rating. The RIVER 2 Max weighs 6.1kg with 500W rated output. For short jobs below 600W, EB3A can be the more compact fit—but capacity remains the limiting factor on long runs.
Match the appliance, not the badge.
Choose RIVER 2 Max for greater energy capacity, or EB3A for lighter carrying weight and short loads within its 600W rating. Outlet count and voltage depend on the regional version. Verify startup surge for motors and compressors; rated output alone does not establish compatibility.
Which actually meets your planned hours?
Examples, not measured device consumption. Estimated runtime = capacity × 0.85 ÷ watts, with no recharging. “Meets hours” checks only energy and rated output, not startup surge or electrical compatibility.
| Example and target | RIVER 2 Max | EB3A |
|---|---|---|
| Router and small LED light 15W · 8h target | 29.0h estimated Meets hours in this model | 15.2h estimated Meets hours in this model |
| Continuous-load fridge example 60W · 8h target | 7.3h estimated Needs recharging or more capacity | 3.8h estimated Needs recharging or more capacity |
| Laptop workstation 100W · 4h target | 4.4h estimated Meets hours in this model | 2.3h estimated Needs recharging or more capacity |
| 550W constant load (no startup surge) 550W · 1h target | Exceeds rated output | 0.4h estimated Needs recharging or more capacity |
At very low loads, inverter standby consumption can make this simple estimate optimistic. Temperature, battery age and compressor cycling also affect results. Do not treat these figures as guaranteed backup duration.
Availability and source checks
BLUETTI’s US product page labels EB3A as discontinued. This does not establish every retailer’s stock: check remaining inventory, condition and warranty, and do not substitute a similarly named model or accessory bundle.
- EcoFlow RIVER 2 Max official product page
- BLUETTI EB3A US product page and availability notice
- EB3A US/BR manual
If neither meets your hours, compare larger-capacity models rather than relying on an overload mode or a seller’s runtime headline.
RUN YOUR OWN LOAD
Not using a 60W refrigerator?
Enter the watts and hours for your actual device. The calculator checks both required capacity and rated output against every WattMatch product.
FAQ
RIVER 2 Max vs EB3A
Is the EcoFlow RIVER 2 Max better than the BLUETTI EB3A?
There is no universal winner: the RIVER 2 Max has 512Wh versus 268.8Wh for more estimated runtime. The EB3A is 1.5kg lighter and has a higher 600W rated output. Check the exact regional model, current availability and seller warranty before choosing.
Which one is better for a car refrigerator?
At a constant 60W draw with 85% assumed efficiency, the RIVER 2 Max estimates 7.3 hours versus 3.8 hours for the EB3A. Neither meets eight hours of continuous 60W use in this model. Real refrigerators cycle; measure average energy and check compressor starting requirements separately.
Can either power station run a heater?
Most space heaters exceed the 500W and 600W rated outputs of these compact models. Even a lower-power heating load consumes capacity quickly, so check the device label and startup behavior before use.