Mac drain battery

[viorelgn]

To drain the battery on Mac, means to discharging till 20% or completely till the Mac is shutting down automatically ? how is good to drain ?

 

[Weaselboy]

There is no need to intentionally drain the battery. All that does is needlessly use up charge cycles.

Here is some battery info from Apple that might help you.

https://support.apple.com/en-in/HT204054

http://www.apple.com/batteries/