With coconut Battery You are always aware of your current battery health. It shows you live information about the battery, such as how often it was charged and how is the current maximum capacity compared to the original capacity the battery had when it left the factory.
Of course, you are able to store the current maximum capacity of the battery. So you can see the changes in your battery health over time.
coconut Battery is and will always be freeware. It is a Plus version that can be purchased if you want extra features. Go here to buy.