charging problem please help

[tshidisomahlaba]

i have sumsung np300e laptop i charge my battery from my friends laptop after put it on my laptop and using my laptop as usual but when i plug in my charger the orange light switch on and shows charging but the battery doesnt increase it keeps going down as if the is no charger

 

[Dunlop0078]

You are charging a laptop with another laptop? Why?

The other laptops usb port may not be able to provide adequate power in order to charge the laptop while using it. It may charge very slowly with the laptop turned off.