- 858Wh capacity
- pure sine-wave
- 600W rated output (1200W with X-Boost)
- <10 MS UPS
- LiFePO4 cells
Was looking for a compact-ish unit to keep my Starlink dish + router + nas powered up during medium-duration outages and the River 3 Plus seemed like a good fit with its UPS functionality.
Costco is selling just the base unit for $249 (286Wh) and it seems the EB600 expansion battery is hard to buy separately. EcoFlow is selling this unit on their website for $499 (reduced from $940 
)
Statistics: Posted by XOMTOR — Sep 29th, 2026 2:35 pm
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