iPhone 13 mini keeps shutting down
I have owned an iPhone 13 mini since around the time they came out. My first mini survived up until a trip to Mexico where the battery somehow fried up & the screen was asking me to recover from a laptop. It was able to turn on but wouldn't hold a charge so I took it to apple when I came back. The store said it'd be fixed by 3....I come at 3 & it's not ready but they somehow figured out it wasn't a $60 battery charge but a $300 service charge.....for a new phone since they didn't even have time to fix my old mini. Fast forward until now, on another road trip it starts shutting off and on again....what is going on with the minis? I just updated it to iOS 18 after a year of not updating it just for it to still shut off.
iPhone 13 mini, iOS 18