Is charging with a non-original 2.4A adapter harmful to the iPhone battery?

Question

iPhone

There is such an adapter, it would be very convenient to use it with all devices without removing it. At the same time, I would not like to wear out the battery of the smartphone ahead of time. I have already considered the arguments from ordinary users on this topic, I did not find a clear consensus. I'd love to get an answer from someone who knows.
2A adapters are supplied for other devices, therefore, the question is tied to the iPhone.

Answer 1

2.4A is the maximum current that charging can give while holding 5V. It's not a charge current.
The charge current is determined by the phone and battery controllers.
You can even turn on the five-volt line of the PC power supply with max. current under 20A, he will not eat all the power from this.
The phone will take as much as it needs. The only thing is sometimes bad cables do not allow this to be done, limiting the maximum current with their resistance.
+ there are some charges like quickcharge, there are certain conditions on the part of the phone for accelerated charging by increasing the charging voltage and, as a result, increasing the charging current.

Answer 2

iPhone supports charging from such adapters. The health of the battery is highly dependent on the charger, less on the cable, but it also depends. It is better to use MFi -certified devices. And check information about the manufacturer on a special website . Taken from here