EcoFlow RIVER 3 Plus Extra Battery 300Wh

Modular Battery Expansion for RIVER 3 Plus with Independent USB-C ChargingThe EcoFlow RIVER 3 Plus Extra Battery 300Wh (EB300) adds 286Wh of capacity to your RIVER 3 Plus system with a seamless plug-and-play design. Lightweight, compact, and independently usable via USB-C, it’s ideal for users seeking portable backup or extended runtime for light-wattage devices. Key Features Expandable to 858Wh: Stack the EB300 with the RIVER 3 Plus or add an EB600 to reach up to 858Wh total. Independent USB-C Power: Features 140W USB-C input/output—ideal for charging devices directly or powering the RIVER 3 Plus. Tool-Free Wireless Connection: Utilizes Pogo Pin tech for secure, cable-free stacking in seconds. Lightweight Design: Weighs just 7.7 lb—lighter than the main RIVER 3 Plus unit, perfect for standalone use on short trips. Modular Flexibility: Use as an expansion battery or on its own for small devices. LiFePO4 Longevity: Delivers 3000 cycles to 80% capacity—up to 10 years o