Since you said you're in Florida, don't be fooled by some posts that swear that the 12v battery is in the cargo area/side wall, in the US models it is NOT, it's located within the hybrid battery housing..............
That is true of the North American Niros that are HEV, but is not true of the PHEV. That has a lead acid battery in the cargo area. Confirmed, but no word as to why yet. Seems like a step backwards.
2018 Kia LX HEV Metal Stream with Advanced Tech