I have a cleint who has a Dell inspirion 6400 Laptop. For some reason the battery will not charge on the laptop. They had an original Dell battery in there. It would not charge, but the laptop works fine on mains power. We replaced the Dell battery with a non-genuine battery, which charged fine for about 2 months. Then the battery stopped charging and now will not charge at all. We replaced the battery thinking that was at fault, but still no good. We put the original Dell back in and still no good.
The laptop does work fine off mains power. They have an orginial Dell 65W power adapter. I can only think now that something must be wrong with the laptop motherboard to not allow charging. There was a small period of time where the laptop could charge the battery if it was off. But this has since stopped working too.
Does anyone have any idea's on this issue?