Do you feel your Macbook's battery doesn't last as long as when you purchased it? Batteries are consumable components and age overtime. But there isn't a simple way to see how much your battery has aged and if it needs replacement - until now! True mAh - Battery Health is an easy to use app that accurately shows your battery health information. The app also includes your battery's present capacity, the capacity when it was new and the cycle count. Note: This app only shows the battery health for your Macbook. It does not show the battery health for any connected iOS devices.