When charging a phone wirelessly, there is sometimes significant heat generated. That combined with higher charging rates that are now coming out with the Qi 2 standard make me wonder what the ideal charge for the battery would be.
Most of the time I just toss my phone onto a wireless charger before bed, and don’t really care how quickly it charges. Would it be better to use a 5W brick with a charging pad? Should wireless be avoided and usb used instead?
Given qi2 uses magnets to properly align the coils in the phone and the charger, it should result in generating less heat and overall greater efficiency, so it very well may generate less or the same amount of heat [edit: despite the higher amount of energy transmitted ]… That is, if your phone supports it. But all things considered, it’ll unlikely ever be as efficient, and, hence, warmer than a regular wired charger. I mean, you’re pretty much going ac → dc in the power supply, then dc → ac in the inductive charger, then again ac → dc in the phone itself for no particular reason. That being said, pd also runs quite hot at times, so, IMO, smth like plain old 5v 1amp charger would be more preferable given the use-case