touchpad malfunctions on charger pluging in


Apr 9, 2016
I have a hp presario c700 and yesterday i by mistake left my charger on for the whole night with my laptop plugged in .
today when i plug my laptop in the touchpad doesn't work and even the usb mouse doesn't work but the apart from this the laptop works fine and once the charger was on and plugged in the same board as the tv and tv display was distorting and when i unplugged the charger it stopped .
Also the charger acts like this after it heats up and it heats up very fast too giving me only 2 mins to use my mouse.
my battery is very weak and can give me 10 mins max backup and i need the charger all the time and this is hampering my work a lot.