Bluetti AC50B and the EcoFlow RIVER 2 Max are both portable power solutions – however they differ in several key areas, including power output, battery capacity, and charging speed. In this article, we’ll explain how these two models compare to help you determine which power station is best for outdoor power.
Which is better for outdoor power – Bluetti AC50B vs Ecoflow RIVER 2 Max?
The EcoFlow RIVER 2 Max is the better choice for outdoor power because of its larger capacity, faster charging, output ports and lighter weight.
Winner: EcoFlow RIVER 2 Max has more battery capacity (512Wh vs. 448Wh). This means that it can store more energy and power devices for longer before needing a recharge.
- Bluetti AC50B: 448Wh capacity.
- EcoFlow RIVER 2 Max: 512Wh capacity.
EcoFlow RIVER 2 Max
Delivers more capacity for longer runtime.
Winner: EcoFlow RIVER 2 Max has a higher battery capacity (512Wh vs. 448Wh), while both units support peak loads of 1000W. The Bluetti supports higher continuous power at 700W, making it suitable for heavier loads.
- Bluetti AC50B has 700W continuous output and can reach peak loads up to 1000W in “Power Lifting Mode”. This means the Bluetti is better for energy-hungry devices.
- EcoFlow RIVER 2 Max has 500W continuous output and peak power up to 1000W in “X-Boost mode”.
Bluetti AC50B
More output power for devices.
Winner: Bluetti, while both models use high-quality LiFePO4 batteries, Bluetti AC50B has more charge cycles (3500 vs 3000) and overall longer lifespan.
- Bluetti AC50B: Delivers 3,500 charge cycles to 80% efficiency.
- EcoFlow RIVER 2 Max: Delivers 3,000 charge cycles to 80% efficiency.
Winner: Tie, the EcoFlow RIVER 2 Max has faster AC charging (1 hour), while the Bluetti AC50B has faster solar (2.7 hours) and car (2.7 to 4.9 hours) charging speeds.
- Bluetti AC50B:
- AC – 580W, 80% Charge 45 minutes, full charge in 70 minutes (Turbo mode)
- Solar – 200W, 2.7 hours 100% charge with full sunlight
- Car – 4.9 hours 100% charge (12V) / 2.7 hours 100% charge (24V)
- EcoFlow RIVER 2 Max:
- AC – 1 hour full charge (X-Stream)
- Solar – 160W, 4 hour 100% charge with full sunlight
- Car – 6 hour 100% charge (12V)
Winner: EcoFlow RIVER 2 Max provides twice as many ways to plugin appliances and devices.
- Bluetti AC50B: 6 outlets & ports including 2×700W AC outlets, 1×15W USB-A port, 2×65W USB-C ports and 1×12V/10A car port.
- EcoFlow RIVER 2 Max: 11 outlets & ports, including 4x500W AC outlets, 3x12W USB-A, 2xDC5521, 1x100W USB-C, 1x126W 12V Car Outlet.
Winner: EcoFlow RIVER 2 Max for its unique EPS feature and efficient power management with X-Boost.
- Bluetti AC50B:
- Power Lifting Mode for handling resistive loads up to 1000W.
- ECO Mode to conserve energy with low loads.
- EcoFlow RIVER 2 Max:
- X-Boost mode allows it to power 1000W-rated devices by bypassing overload protection.
- Emergency Power Supply (EPS) mode can switch to battery power in under 30ms during an outage.
Winner: EcoFlow RIVER 2 Max is lighter and easier to carry.
- Bluetti AC50B weighs 14.8 pounds.
- EcoFlow RIVER 2 Max weighs 13.3 pounds.
Winner: EcoFlow RIVER 2 Max has longer warranty coverage.
- EcoFlow RIVER 2 Max has a 5-year warranty.
- Bluetti AC50B has a 2-year warranty.
| Device | Wattage | Bluetti AC50B Runtime | EcoFlow RIVER 2 Max Runtime |
|---|---|---|---|
| Smartphone | 5W | 89.6 hours | 102.4 hours |
| Tablet | 10W | 44.8 hours | 51.2 hours |
| Laptop | 60W | 7.5 hours | 8.5 hours |
| Portable LED light | 10W | 44.8 hours | 51.2 hours |
| Electric cooler | 50W | 9 hours | 10.2 hours |
| Drone battery charger | 100W | 4.5 hours | 5.1 hours |
| Portable fan | 25W | 17.9 hours | 20.5 hours |
| CPAP machine | 40W | 11.2 hours | 12.8 hours |
| Digital camera battery charger | 15W | 29.9 hours | 34.1 hours |
| Portable speaker | 20W | 22.4 hours | 25.6 hours |
| Electric grill | 1000W | 0.4 hours | 0.5 hours |
| Mini fridge | 60W | 7.5 hours | 8.5 hours |
| Portable projector | 100W | 4.5 hours | 5.1 hours |
| Electric kettle | 800W | 0.6 hours | 0.6 hours |
| Portable air pump | 150W | 3 hours | 3.4 hours |
| GPS device | 5W | 89.6 hours | 102.4 hours |
| Portable radio | 5W | 89.6 hours | 102.4 hours |
| Electric mosquito repellent | 5W | 89.6 hours | 102.4 hours |
| Portable coffee maker | 500W | 0.9 hours | 1 hour |
| Satellite phone charger | 10W | 44.8 hours | 51.2 hours |
| Feature | Bluetti AC50B | EcoFlow RIVER 2 Max |
|---|---|---|
| Capacity | 448Wh | 512Wh |
| Battery Type | LiFePO4 | LiFePO4 |
| Charge Cycles | 3,500 | 3,000 |
| Output (Inverter Power) | 700W (1,000W surge) | 500W (1,000W surge) |
| AC Charge Time | 80% Charge 45 minutes, full charge in 70 minutes (Turbo mode) | 1 hour (with X-Stream fast charging) |
| Solar Charge Time | 2.7 hours (200W input) | 4 hours (160W input) |
| DC Charge Time | 4.9 hours 100% charge (12V) / 2.7 hours 100% charge (24V) | 6 hour 100% charge (12V) |
| USB-C Charge Time | Not Supported | 4 to 5 hours |
| Weight | 14.8 lbs | 13.3 lbs |
| Outlets / Ports | 6 outlets: | 11 outlets: |
| – 2x AC (120V) | – 4x AC (120V) | |
| – 1x USB-A (15W) | – 3x USB-A (12W) | |
| – 2x USB-C (65W) | – 1x USB-C (100W) | |
| – 1x Carport (12V/10A) | – 1x Carport (12V/10A) | |
| – 2x DC5521 (126W total) | ||
| Warranty | 2 years | 5 years |
Check out our other Bluetti vs EcoFlow comparisons:
- How do Bluetti EB3A vs. EcoFlow RIVER 2 compare?
- How do Bluetti EB55 vs. EcoFlow RIVER 2 Max Compare?
- Bluetti AC200Max vs. EcoFlow DELTA Max
- Bluetti AC300 & B300 vs. EcoFlow DELTA Pro
If you need more power output and longevity, the Bluetti AC50B is a solid choice, especially for powering larger devices. However, if you prioritize charging speed, portability, and more outlets for flexibility, the EcoFlow RIVER 2 Max is the better option.