iPhone Xsmax battery issue

I have an Iphone Xsmax and the battery health is degraded to 69 i noticed whenever I put it on charge it just restarts and keeps doing that until I start using it or keep the screen on before it charges please is it my charger or it’s because the battery health has degraded to 69?

These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding.

Your question is more of a product support one, so I'd suggest you ask it over at the Apple Support Forums. Thanks.

iPhone Xsmax battery issue
 
 
Q