How to know MacBook Battery Cycle Count using Terminal Command

In order to know how many battery cycles you have completed on your MacBook, you can make use of ioreg command on the Terminal, but as this command will print out a lot of information, you can make use of the grep command to narrow down to just use the battery cycle as follows,

% ioreg -r -c "AppleSmartBattery" | grep 'CycleCount" ='

"CycleCount" = 216

As you can see the above command outputted that I have completed 216 battery cycles on my Macbook.

This command can be handy when you are building an application or writing a script that needs this information..