24 Votes

Laptop on Mains Operation - Not good for Battery?

Question by Guest | 2013-10-25 at 21:31

Usually, I do not travel with my laptop/notebook and it is only standing on my desk at home. I am running it on mains operation, so the plug is in the socket and I do not use power from the battery.

Now, my question is, whether it is problematic or even dangerous when constantly leaving the battery within the laptop while working on AC power. Or is that not a problem and I can always leave the battery in? Or can that even destroy the battery?

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For at least two reasons, this is definitely not recommended.

  • A battery should be preserved best at a state of charge of about 50 to 70 percent. If the battery is continuously recharged, it is kept at a level of 100 percent at any time. This destroys the battery.
  • Batteries do not like large temperature differences. If you work on the computer and it is getting very warm, you put the battery to unnecessary temperature fluctuations that could be avoided.

Therefore, it is the best to charge the battery to about 60 percent, and then take it out and keep the battery somewhere out of the laptop if you would like to work on mains operation the whole time. It is also a good idea to use the battery once a month to keep it active.
2013-10-27 at 22:50

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