So my battery was bad. So i stopped in and had them put in a new one. So i get home and charge it up to 100%. Took it off the charger and it went to 97% right when i unplugged it. Just now the laptop was off and i was recharging it because i let it run down till about 5% last night. Shut it off this AM and charged it until it went green. When it was green and still plugged in it said 100%..i unplugged it and it went to 92% now. Is there something i have to do to get the correct %?