Originally Posted by JanComputerman
...Plus if it is hot it will limit the charger rate ...
The Li-Ion battery's temperature operating range is for charging 0C (+32F) to +45C (+113F).
So the battery it's the phone's most sensitive component.
Therefore battery won't be charged if its temperature is above +45C (+113F) because the phone's charge controlling will project the battery.
Therefore it'll shut down charging until the battery's temperature will meet again the charge operating range.