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EcoFlow RIVER 3 Max combines the RIVER 3 Plus with the EB300 extra battery, offering increased capacity and smart UPS functionality. With 572 Wh of energy, <10 ms switchover and quiet operation, it’s a reliable solution for home backup and outdoor use.
• Total capacity 572 Wh
• <10 ms UPS for sensitive devices
• 600 W output, 1200 W X-Boost
• 1 h fast charging and 4 charging methods
• EB300 extra battery with standalone USB-C port
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11. - 13. December
Power of two devices in one system
RIVER 3 Max is made up of the RIVER 3 Plus and the EB300 extra battery, which expand backup time and suit both short outages and multi-day use. The units connect wirelessly and operate as a single system.
600 W output with X-Boost
RIVER 3 Plus can power devices up to 600 W and, when needed, start heating and household devices up to 1200 W with X-Boost. Ideal for routers, computers, monitors, projectors and other essential electronics.
<10 ms UPS protection
A switchover time under 10 ms ensures stable operation during outages. Suitable for sensitive equipment like NAS units, desktop PCs and network devices, preventing shutdowns and data loss.
Up to 2× longer runtime for low-draw devices
X-GaNPower technology reduces heat loss and increases efficiency. Routers, lights and other low-consumption devices can run significantly longer.
EB300 extra battery as a standalone unit
Weighing just 4,7 kg, the EB300 extra battery includes a USB-C input/output port and can be used independently as a small charger without attaching it to the RIVER 3 Plus.
Flexible charging with four options
RIVER 3 Max supports charging from the grid, a car, a generator and up to 220 W solar panels. X-Stream technology enables a full charge in about one hour.
Durable construction with 10-year lifespan
LiFePO4 battery tech delivers around 3000 cycles and long service life. IP54 protection helps prevent water and dust damage, while the robust casing withstands drops and heat.
X-Guard smart battery protection
Over 40 safety checks and cloud-based monitoring ensure secure operation. Protection covers temperature, voltage, current and short-circuit control.
Ultra-quiet performance
Optimised cooling keeps noise below 30 dB, making it suitable for 24/7 use in living rooms, bedrooms or offices.
Smart monitoring and settings
The colour LCD shows UPS status, battery level and remaining runtime. The EcoFlow app lets you adjust charging speed, schedule charging, receive low-battery alerts and track energy usage.
UPS management software
When connected to a PC or NAS, EcoFlow software can log outages and send low-battery warnings. This helps prevent data loss and enables safe shutdown of connected devices.
Easy setup with Pogo Pin connection
The extra battery clicks onto the main unit in seconds with no cables or screws, making setup quick and convenient.
Functions
Battery
General parameters
Interfaces
Dimensions
Power
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