Is it ok to leave the charger connect to my macbook pro?

Is it ok to leave the charge connect most of the time? or can I blow something out if it is connected? just thought of asking cuz i have been leaving it on.

I do it all the time with no ill effects.  At least once per month I will use the MBP under battery power to about the 40% discharge level to keep the battery happy.  Here are Apple articles on MBP battery usage which you may find helpful:
https://www.apple.com/support/macbookpro/batteries_power/
Ciao.

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