Why does my iPhone 14 say slow charger with different cables?

Different cables don’t necessarily mean different charging speeds. The adapter matters too. Check its output label: an older low-wattage USB-A adapter may charge slowly, while a USB-C adapter with enough power is a better test. Try a known-good USB-C cable and adapter together, plugged directly into a wall outlet.

If it used to charge normally and now barely gains a percent, I’d check the connection before buying anything. Look for lint or debris in the phone’s charging port, and see whether the cable seats firmly. Don’t poke around with anything metal. If the port looks clear, test another outlet and adapter.

Try a restart and make sure iOS is up to date, especially if the warning started suddenly. Software can affect what the phone reports, but a persistent warning or no increase in battery level is also a reason to test another adapter and have the phone checked if the issue remains.

One quick way to narrow it down is to keep the cable and phone the same, then swap only the adapter. If that changes the warning, the adapter is likely the weak link. If multiple suitable adapters and cables all behave the same, the phone’s port or charging hardware may need inspection.