Charging a phone overnight may be a problem for other handsets available in the market but it’s definitely is not a problem for iPhone as apple corporation uses a special type of battery which slows down the rate of charging when it’s about to reach its full capacity. So if you are an iPhone user you definitely don’t have to worry if you forgot to unplug the charger from your device overnight.

However, if you are not an iPhone user you need to take care of these sort things because only high-end devices are been designed with such technology and you need to be careful that doesn’t charge a device more than required as it will definitely lead in dis-functioning of your device.