Battery health shows good but its not lasting
My battery on my MacBook is about 3 years old, when I go into the information for the battery it shows that it still has the full charge capacity left and that it has only been through 120 cycles and that it is in normal condition....my issue is that it will not last for any longer than about 20-30 minutes. I am wondering what may be wrong, I monitor my computers activity and it always says nothing is using significant energy. I am running OS X 10.9.5. Thanks for the help.
Here are my results.
Is this a good question?