I want my laptop only to charge when under X% of battery is left, while always plugged-in to charger.

I have a laptop that has to be up in running for long periods and I want to lower the electricity consumption as much as possible. Since it is always plugged-in it is always charging.

Also, is this logical, or consumption will still be the same?


  • What brand of laptop? For instance, Lenovo has an app for theirs that allows this behavior.
    – NinjaCat
    Apr 12, 2015 at 19:28
  • HP G62, this is an old laptop... but will do fine for home server :0 Apr 12, 2015 at 19:39
  • You're doing the right thing for the wrong reason. You will prolong the battery's service life a little with this practice (although you risk running out of juice when you need it). You won't save electricity because there is negligible charging current when the battery is full.
    – fixer1234
    Apr 12, 2015 at 19:45
  • hmm maybe youre right. Any other tips on how to save on consumption? Apr 12, 2015 at 19:48
  • Charging is controlled by the bios, no way to change its behavior.
    – Moab
    Apr 12, 2015 at 20:03


You must log in to answer this question.

Browse other questions tagged .