Mac Battery Life is comparatively much higher than the battery of other laptops.
Enabling the percentage helps you check the battery charge level & analyze when your battery begins to exhibit an unexpected behavior.
Click on the Battery Icon & select “Show Percentage” option.
Use “Energy Saver” option: The Mac systems, be default, are a bit of a power-hungry, however they have an in-built energy function, just like iPhones.
Turn On the option put the hard disk(s) to sleep when possible.
In case you are not using a Wi-Fi Network, turn off Wake for Wi-Fi Network Access.