EcoFlow RIVER 3 Max Plus – RIVER 3 Plus with Extra Battery 600W Output

Expanded Capacity, Pro-Grade UPS, and Whisper-Quiet Power in a Compact DesignThe EcoFlow RIVER 3 Max Plus combines the RIVER 3 Plus with the EB600 Extra Battery for a total expandable capacity of 858Wh. With a 600W AC output (X-Boost up to 1200W), <10 ms UPS switching, and IP54-rated durability, it's built for home office backups, sensitive electronics, and extended outdoor use—all in a lightweight, ultra-quiet form. Key Features 600W Output, 1200W X-Boost: Runs 90% of household appliances and electronics, including heating devices. <10 ms Pro-Grade UPS: Protects precision devices like gaming setups, NAS units, and workstations during outages. Wire-Free Capacity Expansion: Stacks seamlessly with the EB600 for a combined 858Wh runtime. LiFePO4 Battery Chemistry: Offers 3000+ cycles for up to 10 years of everyday use. Whisper Quiet Operation: Operates under 30 dB—ideal for indoor, overnight, or RV usage. 1-Hour Fast Charging: Fully charges via AC or generator in