EcoFlow RIVER 3 Plus Smart Extra Battery
EcoFlow
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Product Details
The RIVER 3 Plus Smart Extra Battery doubles the RIVER 3 Plus's capacity from 286Wh to 572Wh — transforming a compact day-trip station into a multi-day power solution. The expansion battery connects to the RIVER 3 Plus's side port and charges simultaneously with the main unit, requiring no separate charging step or additional hardware.
Brand new in box
5 year factory warranty
Fast shipping (5–7 business days)
Authorized EcoFlow dealer
Features
Specifications
Warranty
This item comes with a 5-Year Factory Warranty from EcoFlow. A 3-Year Standard Warranty is included automatically from the date of original purchase, covering defects in materials, workmanship, and performance under normal use. An additional 2-Year Extended Warranty is available at no extra charge — activate it by downloading the EcoFlow App, logging into your EcoFlow account, and registering your product using the unit serial number within the standard warranty period. This gives you up to 5 years of total factory warranty coverage. Exclusions apply for damage caused by misuse, unauthorized modification, disassembly, or exposure to excessive heat or liquids. For warranty claims: support@ecoflow.com or 1-800-368-8604.