Well, turns out I have an Dell laptop model Inspiron N5010 to fix things (sound driver, antivirus install, validate windows) .... Well, none of these was the problem, but I also said that the battery lasted very little, then started to load up that were 100% and when disconnected from the electric current as I see your remaining battery and says he has 98% and subtract 48 minutes.
Is this normal or the battery is almost dead? ... is better to change the battery? ...
Battery life degrades over time & the standby or usage time gets depleted fast as the battery gets older. The question is how long does the battery last under normal usage when not plugged to electricity?
It is bad news,you should change a new battery for your laptop.There is best battery shop for you.