2015 Kia Optima EX 2.4L
Rolling down the road and car stalls. When I try to restart it it’s a slow crank as if the batter is dead. Put a jump pack on it and it helped but started smoking by the Alt. or possibly the starter. Now I cannot for the life of me get it to even try to crank. I’m scared to go old school and cross the Solenoid. I have tried the relays, holding the button down. Checked connections. I am at a loss. Any help would be appreciated.