As of May 28, Southwest Airlines’ new charger policy is in effect. The change comes after multiple safety incidents and dozens of recalls involving overheating or exploding chargers, according to Travel and Leisure.

That's all left some passengers trying to figure out how to navigate the change, and Southwest has now provided some guidance about a limitation: You can only pay the new fees in person, not online. People who booked their flights before May 28 still get the free checked bags.

Southwest says the first checked bag will cost $35 and the second will cost $45. Here's what you need to know about the end to free bags.