my computer battery will say its charged at first but when u unplug the power cord it will change and say most of the time 80%. well so i plug it back up and it charge a little but % doesnt change and its light will turn white then say 80% plugged up, not charging. i repeat a few more time and still the same sometimes it will gain a % just depends on how long i want to fight with it. but after that i just uplug and put in bag and dont even touch it no more until a few hours later then turn it on and use the battery without the power cord and its up to 99%. and the battery life still last as long as it did when i got it.