Smallest in Its Class ¹ Outsized Performance

• 

  • 4.3 hours

    Starlink (43W)

  • 19.8 hours

    Speaker (10W)

  • 5.3 hours

    Air Pump (40W)

  • 36.4 hours

    Camp Lantern (5W)

  Charging estimates above are calculated based on RIVER 260 Gen4. ¹²

• 

  • 5.8 hours

    Portable Fan (31W)

  • 6.3 hours

    Fishing Light (30W)

  • 16.2 hours

    Fish Finder (10W)

  • 6 hours

    Portable Fridge (60W)

  Charging estimates above are calculated based on RIVER 260 Gen4. ¹²

• 

  • 11.5 charges

    Phone (18Wh)

  • 11.9 charges

    Camera (16Wh)

  • 5.3 charges

    Drone (40Wh)

  Charging estimates above are calculated based on RIVER 260 Gen4. ¹²

• Camping
• Fishing
• Hiking & Photography

• 

  AC Charging

  0–80% in 42 min

  330W Max ³

• 

  USB-C Charging

  0–80% in 1.7 hr ³

  Up to 140W USB-C In/Out ⁷

• 

  Solar Charging

  Pair with the new 60W Lightweight Portable Solar Panel for up to 260Wh/day. ³

  0–80% in 2 hr ³

  110W Max ³

• 

  Car Charging

Charging estimates above are based on RIVER 260 Gen4. ³ * Solar panels without a USB-C output require an additional adapter cable (sold separately)

• 

  505W Max Total Output

  • AC × 1

    300W

  • USB-C × 1

    140W (In/Out)

  • USB-C × 2

    65W

  • USB-A × 1

    36W ⁷

• 

  740W Max Total Output

  • AC × 2

    500W

  • USB-C × 1

    140W (In/Out)

  • USB-C × 2

    100W+65W

  • USB-A × 1

    36W ⁷

• RIVER 260 Gen4
• RIVER 520 Gen4

Footnote:

1. “Smallest,” “Lightest,” and related “in its class” claims are based on EcoFlow internal analysis of selected commercially available portable power stations with comparable AC outlet configurations, available globally and in selected markets as of Oct. 2026. For RIVER 260 Gen4, comparisons cover models with 245–293Wh capacity and 300–600W rated AC output; for RIVER 520 Gen4, comparisons cover models with 512–518Wh capacity and 500W rated AC output. “Smallest” refers to product volume, calculated from external dimensions (L × W × H), and “lightest” refers to product weight. RIVER product weight and volume data are based on EcoFlow internal laboratory measurements; comparison data are based on publicly available product specifications and EcoFlow internal research conducted in Oct. 2026. Actual product dimensions and weight may vary slightly by model, region, product configuration, and manufacturing tolerances. 2. The “32% Smaller” claim is based on EcoFlow's internal analysis comparing RIVER 260 Gen4 with selected comparable portable power stations. “Smaller” refers to product volume calculated from external dimensions (L × W × H). 3. Charging times and performance are based on EcoFlow internal laboratory testing under controlled conditions. Solar panels without a USB-C output require a compatible adapter cable, which is sold separately unless included in the purchased bundle. USB-C car charging requires a compatible car charging adapter, which may be sold separately. Actual charging speed and performance may vary depending on ambient temperature, battery level, input power, sunlight conditions, solar panel angle, cable, adapter, firmware version, product settings, and usage environment. 4. The “Industry-First Fridge Runtime Boost” claim is based on EcoFlow internal review of comparable portable power stations available in selected markets and their publicly available product features as of Oct. 8, 2026, together with EcoFlow internal testing under standard refrigerator conditions. Actual runtime varies by refrigerator model, food load, ambient temperature, and door openings. EcoFlow disclaims liability for any food spoilage during outages. 5. The 10 ms UPS switchover time is based on EcoFlow internal laboratory testing. This product is not intended for use with medical devices, life-support equipment, or other devices where a power interruption may result in personal injury or property damage. It does not support 0 ms professional UPS applications; please test device compatibility before use. 6. The “60% Less Unused Internal Space” claim is based on EcoFlow internal analysis comparing RIVER 260 Gen4 with EcoFlow RIVER 3 in a similar battery capacity range. Actual internal space utilization may vary by product model, component configuration, and manufacturing tolerances. 7. Output, port, and total output ratings are based on EcoFlow internal testing. Actual performance may vary depending on connected devices, usage conditions, temperature, battery level, and product settings. X-Boost supports selected devices above the rated AC output by adjusting output voltage. Compatibility varies by device. X-Boost is not recommended for voltage-sensitive equipment or devices with strict voltage requirements. 8. Idle drain data are based on EcoFlow internal laboratory testing under controlled conditions. The “Up to 34% Less Idle Drain” claim is calculated against selected comparable portable power stations tested or analyzed under similar conditions. Actual results may vary depending on AC/DC output status, screen status, connected devices, firmware version, ambient temperature, and product settings. 9. Storage retention data are based on EcoFlow internal laboratory testing under controlled storage conditions. Actual remaining battery level may vary depending on storage temperature, storage duration, initial state of charge, battery condition, firmware version, and product settings. 10. The “10% Longer Runtime on Average” claim is based on EcoFlow internal testing comparing RIVER 260 Gen4 (256Wh) with selected comparable portable power stations with capacities of ≤300Wh under controlled laboratory conditions. The approximately 10% improvement represents the average across the tested low-wattage AC load conditions (≤20W), rather than the improvement at each load. Actual runtime and improvements may vary depending on the connected device and usage conditions. 11. In EcoFlow internal testing under controlled conditions, RIVER 260 Gen4 provided an iPhone 17 Pro with approximately 5–10% additional battery charge after the power station’s displayed battery level reached 0%. Actual results may vary by phone model, battery condition, cable, temperature, and usage during charging. Do not rely solely on Emergency Power Mode for emergency communications, contacting emergency services, or life-safety, medical, rescue, or other critical applications. Maintain independent backup power and communication methods. 12. Runtime figures are based on EcoFlow internal calculations with one device connected at a time. Actual runtime may vary depending on device model, usage behaviour, battery condition, ambient temperature, and product settings. 13. The “Up to 2 h Longer Fridge Runtime” claim is based on EcoFlow’s internal testing under controlled laboratory conditions, comparing the runtime of a refrigerator powered by the RIVER 520 Gen4 with Fridge Runtime Boost enabled versus disabled. Testing was conducted using a DOMETIC 36L refrigerator (model CFX335) with its temperature set to −5°C. Actual runtime improvement may vary depending on the refrigerator model, ambient temperature, frequency of door openings, and battery level. 14. Noise level is based on EcoFlow internal laboratory testing. Measurements were taken at 0.5 m while powering loads below 200W. Actual noise levels may vary depending on load, temperature, fan speed, placement, and ambient conditions. 15. Protection features and durability claims are based on EcoFlow internal testing under controlled laboratory conditions, product design specifications, and applicable certifications. Testing includes salt mist, drop, shock, vibration, and 0.9 m drop resistance. Such testing does not guarantee durability under all real-world conditions or against intentional damage. Actual performance may vary depending on usage conditions, charging behavior, storage environment, temperature, humidity, and maintenance.