There are mainly three iPhone 13 charger types:

Apple’s Original Wired Chargers: These are the chargers bundled with iPhone 13 which usually include a cable from USB-C to Lightning (since the iPhone 13 charger port is Lightning) to give fast charging.

Third-party USB-C Chargers: You can also charge iPhone 13 with reliable third-party USB-C chargers, like Anker Type C chargers.

MagSafe Chargers: iPhone 13 supports wireless charging, so wireless chargers supporting MagSafe technology can also be used to charge iPhone 13 series.

Yes, you can use a 30W charger for iPhone 13 or iPhone 13 pro max. The iPhone 13 series is compatible with a wide range of chargers, including 30W models, which allow you to charge your iPhone 13 more quickly and efficiently, ensuring you have enough power to stay connected and productive throughout the day.

This depends on the wattage or charging power of your Lightning chargers. For instance, using a 20W iPhone 13 mini charger normally fully charges this model in 87 minutes, while the regular iPhone 13 can be fully charged in 89 minutes with a 20W Apple Lightning power adapter. On the other hand, an iPhone 13 Pro charger of 30W can fully charge this model in 89 minutes. So generally, it takes about 90 minutes to charge different iPhone 13 models from 0% to 100%.

Please check the following parts when your iPhone 13 is charging slowly:

Power Adapter: The power adapter you're using may not provide sufficient power output. To ensure fast charging, it's recommended to use an official Apple power adapter or a reputable third-party adapter like the Anker 747.

Charging Cable: A damaged or non-certified charging cable can hinder charging speeds. Make sure you're using an Apple-certified cable or a third-party cable from reliable brands.

Background Apps/Activities: Running resource-intensive apps or processes in the background can slow down the charging speed. Try closing unnecessary apps and reducing background activity while charging.

Charging port: A damaged or clogged iPhone 13 charge port or iPhone 13 pro charger port may result in slower charging. Please check and clean them regularly for efficient charging.

No. Fast charging generally does not damage iPhone 13 if you use official or certified fast chargers. This is because most qualified fast chargers are equipped with built-in safeguards to regulate the charging process and protect the battery from overcharging or overheating.