Can I leave the battery in my macbook even though I always have it plugged

Hi just bought a Macbook over the weekend and am new to mac after a few days I totally enjoy the os and probally will never use windows again but my question is I leave my macbook plugged in all the time should I leave the battery in and is ok to leave the macbook on all day while I am downloading files thank you

Hi, and welcome to the Apple Discussions.
You can leave your battery in if you leave it plugged in all the time, however it may affect the battery life negatively. See this article: http://www.apple.com/batteries/notebooks.html
And if you do decide to leave it plugged in with the battery in, you should calibrate the battery regularly.
And yes, you can leave it running all day while downloading files.

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