I have an 16 month Acer 5920g laptop which gets used a couple of times a week. The battery was flat so I charged it and within half an hour the amber light changed to green to say it was fully charged. I switched on the laptop and it says its 100% charged but only has 36 mins battery life. It used to last for nearly 2 hours.
I presume the battery is knackered but is there anything to fix the battery or is it a case of buying a new battery.
I recently changed from Vista to Windows 7 pre release, could this be the cause.