A Southwest Airlines Boeing 737-700, registration N7713A performing flight WN-1844 from Baltimore,MD to Tampa,FL (USA), was enroute at FL400 about 80nm southeast of Myrtle Beach,SC (USA) when the crew decided to divert to Myrtle Beach after a passenger’s battery charger had overheated and emitted smoke. The aircraft landed safely on Myrtle Beach’s runway 36 about 20 minutes later.

A replacement Boeing 737-8 MAX registration N8947Q continued the flight and reached Tampa with a delay of 4.5 hours.

The occurrence aircraft returned to service about 16 hours after landing.