3 Answers
Your battery charges to 100% and then stops charging.
Well on the other way around if you pick up your device after whole night's charging and notice its warm, you might consider not doing it anymore.
The problem is that devices are equipped with circuit that would prevent charging when the meter turns 100%, the wire is cut. But, if you notice that warmness of your device this means that the device is storing up heat and that might swell up your battery, erode its normal functioning eventually shortening it's battery life and backup.
