10 reasons why your phone battery keeps dying

Your phone is too hot

The surface of your smartphone acts as a heat sink, allowing the device to remain at a safe operating temperature. If external factors, or an internal fault, prevent the phone from cooling itself effectively, it will go into protect mode.If this happens iPhone users may see the message "iPhone needs to cool down before you can use it".Overheating damages the battery and leaves it is less capable of holding charge in future. Never leave your smartphone in a hot car, or on the hob, obviously.