The iPhone 13 will require a larger battery to power its bigger screen, and according to Apple it would need a more powerful power supply. The current power supply of the iPhone 13 is 18W. However, the new power supply for the iphone 13 charger will be 60W. This is because the Apple engineers will need to increase the current in order to keep the charging speed. The higher the … [Read more...] about An iPhone 13 battery case needs a 20W power supply, but why?