Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Zero power, 2011 Kia Optima SX › Reply To: Zero power, 2011 Kia Optima SX July 24, 2020 at 3:43 pm #961964 John JamesParticipant All basics have been checked. Why would I check the alternator for not getting power at all to the entire vehicle? I am not saying the battery does not charge up. Battery is fully charged. Power is coming from the battery.