It won't charge unless you drop below 94%, it lessens the strain on the battery.okay, I just got the app that joe was using and it said that my battery was at 46% of its original capacity. I also am worried of using it because my laptop seems to lock up when it is on the battery for too long. it is also at 97% capacity but not charging. should I just not worry and keep it plugged in and enjoy until I can get a new battery down the road?