Two Greenworks 80v 4 Ah batteries for $269.99 sold at Costco w/8Year Warranty Costco Wholesale has for their *Members*: *2-Pack Greenworks 80V 4.0 Ah Lithium Ion Batteries w/ 8-Year Warranty* for *$269.99*. *Shipping is free*. Thanks to Community Member *fslove* for finding…