iPhone won’t charge past 56%
My iPhone charges to 58% and not more than that
iPhone 13 Pro Max, iOS 16
My iPhone charges to 58% and not more than that
iPhone 13 Pro Max, iOS 16
First try a Forced restart Force restart iPhone – Apple Support (UK)
Try another cable
Try another charger brick
If no better you should arrange a repair
iPhone Service & Repair - Apple Support
Or
Contact - Official Apple Support
Anything other than Screen or Battery may be a replacement phone and the price is in the article under "Other damage"
See also: Get your iPhone, iPad, or iPod touch ready for service - Apple Support
iPhone won’t charge past 56%