Base iphone 16 battery charges slower than expected with original 20W charger

Then it’s time to contact Apple support. An iPhone 16 should charge to 50% in 30 minutes using a 20 watt charger. After that it slows down, but should take a total of about 2 hours to reach full charge.

Best way: 

• Install the Apple Support app on your iPhone or iPad - you can contact support directly from the app, and the tech will have (with your permission) access to diagnostic data on your device

Other options:

• • Click on “Support” at the top or bottom of this page
  • Go to Contact Official Apple Support

(Note that both of the above have options to receive a callback or chat)

• • Call Apple Support; the phone numbers are in this link→Contact Apple for support and service - Apple Support
  • Make a Genius Bar appointment at an Apple Store→Genius Bar Reservation and Apple Support Options - Apple
  • Find an Apple store or Apple partner service provider→Find Locations

GeorgievEmil3103 wrote:

hello, lately I've noticed that my iPhone is behaving strangely when I charge it and it's streaming much slower than expected, for example in 30 minutes it charges to about 32% which seems very slow to me. Are there other people with a similar problem and what could be the reason

FIRST: DO NOT click the </> icon when posting; that is just for posting application code.

Are you using a high quality power source: Apple, Griffin, Anker, etc?