It won't. Because in general, \"5V\/2.1A charger means that the current value 2.1A is the\" maximum output capacity \
Mobile phone chargers can be roughly divided into travel chargers, seat chargers and maintenance chargers, and the average user is mainly exposed to the first two. The biggest seller on the market is the travel charger.
There are also a variety of forms of travel chargers, common inexpensive duck egg type miniature travel charger, ordinary desktop card charger, high-end desktop charger with liquid crystal display.
Charging the iPhone 13 with 5v2.1a has damage to the battery. The process by which the battery receives electrical energy from the external circuit and converts it into the chemical energy of the battery. After the battery energy is consumed by discharge, it can be restored by charging, and it can be re-discharged to form a charge discharge cycle. Generally charged with DC current (also useful asymmetric AC current or pulse current). Under different circumstances, different charging methods are used, such as constant current charging and constant voltage charging.
Happy to answer for you, as long as the use of three c qualified products, the basic impact is not large, can be used normally. If conditions permit, it is best to use the original charger data cable to charge it, after all, the matching effect is better. Apples are famous snails?? Slow charge, has been standard with ancestral technology 5v1a process, many consumers do not use, or will go online to buy 5v2a charger. After all, Apple only supports 20 watts!