Costco Members: EcoFlow RIVER 3 Plus Smart Extra Battery (EB600) $256 + Free Shipping

Costco NEXT has Ecoflow River 3 Plus Plug and Play EB600 Extra Battery for $259.99. The original price was $319.99, now with a 20% discount. The EB600 triples the capacity of River 3 Plus/Wireless from 286Wh to 858Wh, has an additional 140W of USB-C input and output option, a wireless Pogo Pin connection, and can be used independently to reduce load. Great for those who bought the Costco River 3 Plus Wireless deal to add capacity.