My iPad charger will twitch when I YouTube And so on my charger gets pretty hot and needs to cool it down each time
Then I would exchange the thing and not use the device for loading. You suck the battery empty and give it the same time juice on it, so really healthy can't be.
For the battery it is depending on the circuit the Apple does not use so well. The charger should be dimensioned so that it can withstand such loads.
Insofar as your battery is not completely broken, the charger should actually have no problems with such a use. What does hot mean? They may already be a bit warm. So from 60 ° would be the limit for me.
Is there a message on your device?
Should they, yes. In particular, the quick-release devices with more than 2 amps but are quite warm, especially if the device is still used in parallel. My charger fills the 4200mAh battery from the phone in 45min. That's pretty quick - and there's something warm.
