EcoFlow RIVER 3 Plus Smart Extra Battery

The EcoFlow RIVER 3 Extra Battery is available in two cable-free versions, 286Wh (EB300) and 572Wh (EB600), that expand the RIVER 3 or RIVER 3 Plus capacity up to 858Wh. Both use a wireless Pogo Pin connection for quick installation without cables or screws and include 140W USB-C input/output for fast and efficient charging. They can also be used independently as portable power units, giving you flexibility whether you’re at home, outdoors, or on the move. The EB300 offers a compact and lightweight option for travel, outdoor activities, and lighter power needs, while the EB600 delivers greater capacity for longer runtime, making it ideal for off-grid adventures, home backup, or professional use. Together, they provide versatile, reliable, and convenient energy solutions that adapt to your lifestyle. Product Specifications Feature / Specification RIVER 3 Extra Battery 300 (EB300) RIVER 3 Extra Battery 600 (EB600) Model RIVER 3 Extra Battery 300 RIVER 3 Extra Battery 600 Battery Capacity 286Wh 572Wh Expandable Capacity Expands total RIVER 3 setup up to 858Wh Expands total RIVER 3 setup up to 858Wh USB-C Input/Output 140W additional USB-C functionality 140W additional USB-C functionality Connection Wireless Pogo Pin (no cables/screws needed) Wireless Pogo Pin (no cables/screws needed) Use Options Works as an add-on battery OR as a standalone lightweight power unit Works as an add-on battery OR as a standalone higher-capacity unit Portability Compact & lighter for travel Larger capacity for extended runtime Ideal Usage Everyday carry, outdoor adventures, lighter power needs Longer off-grid use, emergency backup, professional use