Iphone charging
Can i use a 45 watt charger in my iphone 13 will it affect my phones battery
health and will it be fast charging
iPhone 13, iOS 17
You can fast charge an iPhone 13 with a charger that is 20 watts or larger. See the following from Fast charge your iPhone - Apple Support
You can fast charge your iPhone 8 or later up to 50 percent battery in around 30 minutes. Find testing information for various iPhone models.
To fast charge, you need an iPhone 15 model with a USB-C cable like the one that came in the box or an earlier iPhone model with a USB-C to Lightning cable and one of these adapters:
- Apple 18W,* 20W, 29W, 30W, 35W, 61W, 67W, 87W, or 96W, or 140W USB-C Power Adapter
- A comparable third-party USB-C power adapter that supports USB Power Delivery (USB-PD)