Question about calibrating

if u connect ac adapter when your battery is at 97% 98 99 it will not reach the 100%,cause mac say it fully charged; you have to use till 90 % then charge again and you reach the 100


however retry calibration
follow this : remember that you just have to wait 5 hours minimum after reconnect the ac adaper, so don't mind if after five hours the light of stop still lighting..

To calibrate the battery:
Plug in the MagSafe power adapter and fully charge the MacBook or MacBook Pro battery until the light on the MagSafe connector changes to green and the Battery icon in the menu bar indicates that the battery is fully charged.
Allow the battery to rest in the fully charged state for two hours or longer. You may use your computer during this time as long as the power adapter is plugged in.
Disconnect the power adapter with the computer on and start using it with battery power. When the battery's charge gets low, you’ll see the low battery warning dialog on the screen.
Continue to keep your computer turned on until it goes to sleep. Save your work and close all applications when the battery's charge gets low and before the computer goes to sleep.
Turn off the computer or allow it to sleep for five hours or longer.
Reconnect the power adapter and leave it connected until the battery is fully charged. You may use your computer during this time.

ciao ciao
Alberto