Hi,

I have a dell n5110 i7 2GHz, 6Go Ram, etc...

Recently I have a problem with the battery,

 The laptop detects the battery well and displays the percentage of charge and that the battery is charging etc. (on windows 7), but as soon as I remove the charger, it turns off and does not restart without the charger plugged.

I tried with another battery, same result.

I also noticed that the battery light flashes 4 times red, then green again.

Do you have any idea about the cause of the failure, and how to fix it?