Hello ,joy i go through your problem the same thing happen with my acer laptop too . i tried everything but at last i have to change my laptop battery
and i buyed new one for my laptop . if your are planing for new battery for your laptop than i can give you that site form where i bye one acer laptop batery for my laptop .
You can check you laptop battery Model No at this site :www.battery-jp.com
OR mail your requirement at this email id : firstname.lastname@example.org
What ever you plan for your laptop please reply me .