2014 Encore, started having this issue too! Replaced the battery and still have had to jump the car 4x in two weeks! And it's the cooling fan running after it's shut off. Would be nice to know exactly what the fix is.
Had the same issue. After having multiple relays replaced and the fuse box replaced over the course of a year, they finally had to replace the entire cooling fan itself. They said the fan was drawing in too much amperage which was causing the relays and fuse box to burn out