Why Is My Charger Plug So Hot. Too hot to handleas in it hurts or will burn you means something is wrong. Internal electrical faults in the appliance such as a short circuit or improperly grounded electrical connection also can cause the device to draw more power than necessary and excess heating.
Answer 1 of 7. It gets very hot because 1 youre pulling near its maximum capacity and 2 the low and high end of a power supplys capacity is where efficiency is smallest and therefore more wattage from the wall is converted into heat. Too hot to handleas in it hurts or will burn you means something is wrong.
Most of this increased power will be converted to waste heat which causes the plug to become hot to the touch.
Heat is caused by high amperage or bad or corroded connection. A relatively warm power adapter is normal especially when the laptop is in use while the battery is charging. However if the adapter is hot enough to hurt you after touching it for a few seconds there could be a serious issue. The first thing to check is whether or not the laptop battery is gaining any.
