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popularDavid_David posted May 27, 2026 06:23 PM
Item 1 of 2
Item 1 of 2
popularDavid_David posted May 27, 2026 06:23 PM
EcoFlow RIVER 3 Plus Smart Extra Battery EB600 $198.99
$199
$320
37% offCostco Wholesale
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EDIT: NVM, I now see this is JUST the battery.
It was a pricing mistake. My mistake was purchasing only one of them. The River 3 Plus and EB600 are great for powering portable refrigerators and freezers while traveling.
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You can get an normal Eco-worthy 150ah / 1,920 watt-hours LiFePO4 battery for about the same price on sale. That's over twice the capacity as this Ecoflow EB600 for the same price. With the added benefit that the normal LiFePO4 can be repurposed for other things. This EB600 is specifically made to only work with the Ecoriver battery backup.
The trick is to get a $10 XT60-to-ring cable and connect the regular battery to XT60 charge port on the Ecoriver. You can get any size capacity you want.
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