1 Nickel

Power Adapter Error message & Battery Not charging!

I am having Inspiron-6400 (XP SP3) laptop. 2 years old. Suddenly I am getting the following message for the past two days:

"Your system will operate slower and the battery will not charge. Please connect a Dell 65W AC adapter or higher for best system operation."

That error message comes when I plug in the AC adapter to go to AC from battery.

It results in Battery not charging. That is a big problem. The tray-icon just shows 'On AC Power' and the 'Charging' indication does not appear any more.

A related message is also seen when I reboot the laptop, at the start itself. That message adds a suggestion by saying 'Try to reseat the power adapter'. Reseating it does not help. Though, a couple of times it helped. So I am not sure what this mechanical / reseating thing has to do with this error.

Overall, it is frustrating. It will be great if someone can help me with the exact solution for this, other than going to Dell requesting for paid-service support.