My laptop is not charging anymore?

Question

I've only used it around 60x over the last 3 months...though, I use it while its charging because I don't like recharging after it falls below 97%. Its always full, so I just leave the plug in..but the laptop is off or in hibernation mode. I use it infrequently, than the next time I've used it, I looked inside the cord, but theres no problems, when I plug it in, theres no electrical current..it won't charge, and the computer doesn't say it's plugged in or charging either. It's currently at 67% at Balanced power plan..

And I'm using a Presario F500 Compaq with Windows Vista Home Premium..AMD athlon(tm) 64 X2 Dual Core processor TK-5,
512kb L2 Cache, 960MB Ram (70% used), Generic PnP Monitor, 980MB physical memory, NTFS system, Frequency is 1700MhZ, Manufacturer is Hewlett-Packard..if this helps

So I'm switching to my desktop with Windows XP Professional now..

Answer 1

It is either the charger or the power module in the laptop. Borrow a charger from a friend and see if it charges, if not then it is the unit inside the laptop (and expensive). I have it is under warranty.