Goal Zero Yeti 700
677.37 Wh, 600 W
EcoFlow RIVER 2 Max
Power station · RIVER 2. Specs from the manufacturer page (checked ).
The EcoFlow RIVER 2 Max is a 512 Wh portable power station with 500 W AC output and a 1000 W surge rating. It uses LFP battery chemistry, is rated for 80%+ capacity after 3000 cycles, and comes with a 5-year warranty.
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Capacity
512Wh
Continuous
500W
Peak / surge
1000W
Solar input
220W
Chemistry
LiFePO4
Cycles
3000
Weight
6.1kg
Warranty
5yr
Key features
- Full charge from 0-100% in 60 minutes, per the page's charging-speed claim
- LFP battery chemistry rated for 80%+ capacity after 3000 cycles
- 120V AC output of 500 W, with X-Boost mode up to 1000 W
- EPS auto-switch with switchover in less than 30 ms
- Four charging methods: AC, car (12V/24V, 8A, 100W max), solar (11-50V, 13A, 220W max), and USB-C (100W max)
- Outputs include USB-C up to 100W, DC up to 126W, DC5521 up to 36W, and USB-A up to 12W
- TÜV Rheinland safety certification
- EcoFlow app control over Wi-Fi and Bluetooth
What it is for
- home backup
- camping
- boondocking
Specifications
| Capacity | 512 Wh |
|---|---|
| Continuous output | 500 W |
| Peak / surge | 1000 W |
| Solar input | 220 W |
| Battery chemistry | LiFePO4 |
| Cycle life | 3000 cycles |
| AC output voltage | 120V |
| Weight | 6.1 kg (13.4 lb) |
| Dimensions | 26.9 × 25.9 × 19.6 cm (10.6 × 10.2 × 7.7 in) |
| Warranty | 5 years |
From the EcoFlow page. Values the manufacturer does not publish are left out.
What is in the box
- RIVER 2 Pro
- AC Charging Cable
- Car Charging Cable
- DC5521 Connection Cable
- Quick Start Guide
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 9.7 h |
| Chest freezer | 100 W (500 start) | yes | 14 h |
| CPAP (no humidifier) | 35 W (40 start) | yes | 12 h |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 6.8 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 34 h |
| Starlink (standard dish) | 60 W (100 start) | yes | 6.8 h |
| TV 50" | 75 W | yes | 5.4 h |
| Sump pump 1/2 HP | 920 W (2150 start) | surge too high | — |
| Well pump 1/2 HP | 880 W (2000 start) | surge too high | — |
| Space heater 1500 W | 1500 W | surge too high | — |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
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Fossibot F800
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EcoFlow RIVER 2 Max comparisons
- RIVER 2 Max vs Goal Zero Yeti 700
- RIVER 2 Max vs Goal Zero Yeti 500
- RIVER 2 Max vs Bluetti AC50B
- RIVER 2 Max vs Westinghouse iGen600s
- RIVER 2 Max vs Bluetti AC60
- RIVER 2 Max vs Fossibot F800
All 10 comparisons
Connection and wiring
Follow the diagrams in the EcoFlow manual.
Open the EcoFlow manual (PDF) →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| AC output high temperature | Indicator flashes because the product is too hot for AC output, typically from blocked airflow. | Ensure the air inlet and outlet are unobstructed. Normal operation resumes automatically after the temperature decreases. If the warning persists after restart, stop using the product. | 11 |
| AC output low temperature | Indicator flashes because the product is too cold for AC output. | Normal operation resumes automatically when the product warms up. If the warning persists after restart, stop using the product. | 11 |
| AC output overload | Indicator flashes because the AC output is overloaded. | Disconnect overloading devices and restart the product. The sum power of loaded appliances must not exceed the rated power (see X-Boost section for limits in X-Boost mode). If the warning persists after restart, stop using the product. | 11 |
| Battery charging high temperature | Indicator flashes because the battery is too hot for charging. Charging is paused while the battery is hot. | Normal operation resumes automatically after the battery cools down. If the warning persists after restart, stop using the product. | 11 |
| Battery charging low temperature | Indicator flashes because the battery is too cold for charging. Charging is paused until the battery temperature recovers. | Normal operation resumes automatically after the battery temperature is restored to above 3°C. If the warning persists after restart, stop using the product. | 11 |
| Battery discharge high temperature | Indicator flashes because the battery is too hot for discharging. Output is paused until the battery cools down. | Normal operation resumes automatically after the battery cools down. If the warning persists after restart, stop using the product and do not charge or discharge it. | 11 |
6 of 12 codes. From the EcoFlow manual. All 12 RIVER 2 Pro / RIVER 2 Max codes →
FAQ
How long will the EcoFlow RIVER 2 Max run a refrigerator?
About 10 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.
Can the EcoFlow RIVER 2 Max start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 1000 W peak. That is below a typical 1/2 HP sump pump start (about 2150 W); check your pump label. Use the calculator with your exact pump.