My type c charger works in my iPhone 11 but doesn’t work in my iPhone 13, however I have a regular usb charger that works in my 13. What does this mean?

The issue you're experiencing with your chargers could be related to a few factors, including compatibility and potential hardware problems. Here are some possible explanations:

1. Type-C chargers are generally compatible with iPhones, but not all Type-C chargers are created equal. Some may not meet the necessary power delivery standards required by newer iPhone models like the iPhone 13. Make sure the Type-C charger you're using is certified and capable of delivering the appropriate power for your iPhone 13.
2. Sometimes, the issue can be with the USB Type-C cable itself. Try using a different USB Type-C cable to see if that resolves the problem. A damaged or low-quality cable can prevent proper charging.
3. The USB Type-C port on your iPhone 13 or the charger itself might have a problem. Check for any debris or damage in the charging port on your iPhone 13 and clean it carefully if necessary. If the charger has issues, it may not provide a stable connection to your iPhone 13.
4. If you're using third-party chargers or cables, they may not meet Apple's standards for compatibility and quality. It's recommended to use Apple-certified accessories to ensure reliable charging.

To troubleshoot further, you can try the following steps:

1. Ensure you are using a high-quality, Apple-certified USB Type-C charger and cable. Identify counterfeit or uncertified Lightning connector ...
2. Check the charging port on your iPhone 13 for any debris or damage and clean it if necessary.
3. Test your iPhone 13 with another known-working USB Type-C charger to see if the issue persists. Accessory Search - MFi Licensee App
4. Sometimes, a simple restart can resolve temporary software glitches. Turn off your iPhone, wait for a few seconds, and then turn it back on.
   1. Restart the device. That's it.
   2. Still not solved --> Force restart iPhone - Apple Support
5. If the issue persists, you can try resetting all settings on your iPhone. This will not erase your data but will reset all personalized settings to their default values. Go to Settings > General > Transfer & Reset > Reset > Reset All Settings and confirm the action. Note that you will need to reconfigure your settings afterward. All settings—including network settings, the keyboard dictionary, the Home screen layout, location settings, privacy settings, and Apple Pay cards—are removed or reset to their defaults. No data or media are deleted.
   1. Reset All Settings: Return iPhone settings to their defaults - Apple Support:- Return iPhone settings to their defaults
   2. You can return settings to their defaults without erasing your content.
   3. If you want to save your settings, back up your iPhone before returning them to their defaults. For example, if you’re trying to solve a problem but returning settings to their defaults doesn’t help, you might want to restore your previous settings from a backup.
6. Make sure you have the latest updates installed.
   1. Update Over-the-Air (OTA) —> Update your iPhone or iPad - Apple Support (IN)
   2. Update using iTunes/Finder —> Update your iPhone, iPad, or iPod touch - Apple Support (IN)

If none of the above steps resolve the issue, it is recommended to reach out to Apple Support or visit an authorized service center for further assistance. They can provide specific guidance based on your device model and iOS version.