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DOUBLE CAPACITY The Extra Battery integrates with EcoFlow RIVER Plus to double its capacity to 720Wh without doubling its weight. Attach and detach it for whatever the situation calls for. RIVER Plus + Extra Battery = RIVER Max Plus This combination is a cost-effective way to extend your off-grid energy use. The battery management system in RIVER Plus automatically incorporates the Extra Battery, providing peak performance instantly.
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🇺🇸 Ship from USA · On Agora since 2026
$369.00