Dell XPS has the following option in Windows 8: I assume it's a hardware switch that is set somehow, so does it stick when rebooting to Ubuntu? Is there a way to check or switch this option from Linux?

I assume there's a driver somewhere since Dell makes the XPS 13, a Linux-preinstalled version of the XPS.

Dell Battery Longevity Mode

  • 1
    Think this might help not sure though askubuntu.com/a/72570/263677
    – user263677
    Mar 30, 2014 at 19:54
  • 1
    Have you checked the BIOS? I can set this in the BIOS of my XPS 15 9530.
    – user382374
    Feb 25, 2015 at 11:10
  • @Starfall I don't remember seeing that as an option - what is it called?
    – NoBugs
    Feb 26, 2015 at 2:35

6 Answers 6


As previous answers have mentioned, this is not a hardware switch, but instead a software function. There is a kernel module available (tp-smapi-dkms), but it only works for Lenovo ThinkPads.

Enabling this function on your Dell laptop would require you or the vendor to write and implement a kernel module for your laptop model, the same way as they wrote the software for Windows.

Right now, your best bet is to unplug the battery manually when it's reached 80%. If you have some coding skills, you can use acpitool and notify-send to write an script to let you know when the battery has reached its 80%. acpitool -B will display information about your battery, from where you can grep some information.

tl;dr: No, you cannot do it at this point, your vendor would need to write the software as it's not a hardware switch.

  • So Dell doesn't write a driver for this, not even for the XPS 13 Ubuntu edition?
    – NoBugs
    Mar 30, 2014 at 21:14
  • That's correct - even though they have Ubuntu preinstalled in some machines they don't offer the kernel module. I think you may try complaining with them, but as they're a company maybe developing that specific kernel module doesn't fit their interests/roadmap. Mar 30, 2014 at 21:30

There is a command line tool from dell https://www.dell.com/support/article/de/de/debsdt1/sln311302/dell-command-configure?lang=en

which is probably doing what you want


  • Does that work in English, and does that work in Linux? The command starts with C: in that page.
    – NoBugs
    Sep 4, 2018 at 4:55
  • Yep this tool is both for linux and windows. Jus run the command from /opt/dell/dcc/cctk. I suppose Dell have it in English too. For some reason, they keep switching me to German, probably geolocation. Sep 10, 2018 at 8:37

I just stumbled upon this link and it looks like it's working.. No errors. I'll keep you updated if it does stop at 80% https://github.com/glynhudson/dell-charge-limit

  • How did you do this since Dell Command | Configure is only available as a download for Windows?
    – NoBugs
    Apr 16, 2022 at 5:44

Update: Use DELL Command | Configure

This answer is no longer relavent

Dell longevity feature is only usable on Windows OS via driver.

Dell haven`t developed any program to support that feature on Linux, also there are no third party drivers for that.

  • That's what I guessed, but... what's your source for this?
    – NoBugs
    Apr 5, 2014 at 15:26
  • I asked a question at Dell Support! You can try it at Dell helpline number. Apr 5, 2014 at 15:29

no, it is not a hardware swtich. it is a software function. you can even set the same thing to happen in ubuntu. look at the link below for clarification.

How can I limit battery charging to 80% capacity?

  • Unfortunately I don't remember any BIOS setting for this, and that link is for Lenovo battery limit system.
    – NoBugs
    Mar 30, 2014 at 21:13
  • it is not a bios function. changing the charge limit is a function of kernel. that is what i wanted to show that charging limit is a function of kernel(the commands are self-explanatory). i have the same setting on my fujitsu laptop. so you can enable it on any laptop. Mar 31, 2014 at 6:19
  • @aveemashfaq The linked question is specifically for Lenovo and does not address the laptop that I have (Dell Inspiron). Can you care explain what steps you took on the fujitsu laptop to stop charging the battery at 80%? Sep 1, 2015 at 15:47

For what it's worth, on the Dell XPS 15 (model 9550), this option seems to work in linux if you enable in the BIOS. That is, the XPS 15 provides both an Windows tool (Dell Command Power Manager, or something like that) and BIOS options to set the battery change behavior.

If you set the BIOS options, they seem to work in Ubuntu. That is, I've set it to 90% max change, and the change state in Ubuntu goes up to 89% and stays there.

There are some inconsistencies though - sometimes it breaks through the 89% barrier and goes up to 100%. I haven't figured that out yet.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .