EcoFlow RIVER 3 Plus Smart Extra Battery

The EcoFlow RIVER 3 Plus Smart Extra Battery is a convenient expansion accessory designed to double the capacity of your EcoFlow RIVER 3 Plus Portable Power Station. By seamlessly connecting to the main unit, it boosts the total capacity from 512Wh to 1,024Wh, providing extended runtime for powering devices during longer trips, power outages, or off-grid use. The Smart Extra Battery is built with the same long-lasting LFP (LiFePO₄) battery technology, offering over 3,000 charge cycles for reliable, safe performance. Compact and easy to attach, it integrates fully with the RIVER 3 Plus system allowing you to monitor both batteries via the EcoFlow app for real-time status and smart energy management. Whether you're camping, traveling, or preparing for emergencies, the RIVER 3 Plus Smart Extra Battery offers a simple, scalable way to expand your portable power capabilities.