I have to replace my charger several times before my phone starts charging
I place my phone on charger. It won’t charge. I remove charger and plug it again. It begins to charge. Apple charger. IPhone 12. Very slow in charging.
iPhone 12, iOS 16
Check your charging cable and USB adapter for signs of damage, like breakage or bent prongs. Don't use damaged accessories. Use a wall power socket and check for firm connections between your charging cable, USB wall adapter, and wall socket or AC power cable, or try a different socket.
If your iPhone or iPod touch won't charge - Apple Support (IN)