I have an HP laptop. It is a 64 bit machine. But I have installed 32 bit Ubuntu 12.04 presently. My problem is, once the battery is fully charged and start using Ubuntu it gets drained completely within less than two hours. The interesting fact is that, I don't run any heavy tasks during this time. Watching a movie or surfing Internet causing such quick battery drain.

I have Windows also in my machine on which i get almost three and a half hours of battery backup. Can someone help me? Is this normal with Ubuntu? Or is it because of the installation of 32 bit OS on 64 bit machine?

  • It's not normal maybe something with you baterry charger??? – user335018 Oct 6 '14 at 12:21
  • 1
    You might wanna try this: Tips to extend battery life for laptops and notebooks – blade19899 Oct 6 '14 at 12:27
  • I don't know it's ubuntu specific, I've use most of Linux based distro. In my experience, they're not battery efficient as Windows is. BTW I've acer laptop. – Sumit Murari Oct 6 '14 at 12:42

install TLP Battery saving tool :- sudo add-apt-repository ppa:linrunner/tlp

sudo apt-get update && sudo apt-get install tlp tlp-rdw 

After installation type :-

sudo tlp start
| improve this answer | |
  • Thanks for suggesting the tool. But I am specifically looking for the issue regarding this, whether its a bug in Ubuntu or my laptop issue. – Anandu M Das Oct 6 '14 at 13:17
  • TLP extended the battery life in my Dell laptop greatly - it appears that out-of-the-box Linux does not make a great attempt at power savings modes. – Charles Green Oct 6 '14 at 14:41

Since, your machine is of 64bit, it would be better to install a 64bit OS. I am not saying that a 32bit OS can not run in a 64bit machine rather if you install 64bit OS, there will be a lesser amount of battery consumption. Plus since you are using two OS s simultaneously, the drainage of battery would obviously be higher.

| improve this answer | |
  • I am not using two OS simultaneously, I have separate partitions for each. – Anandu M Das Oct 6 '14 at 13:16
  • I mean to say you are using both in the SAME MACHINE. – KUNJESH KUMAR MISHRA Oct 6 '14 at 13:34
  • How come using two OS on different partitions causes a battery drainage? Then why doesn't it affect my Windows partition? – Anandu M Das Oct 6 '14 at 13:44
  • @Anandu M Das, It doesn't. Neither does running a 32bit OS on a 64bit processor. – amanthethy Oct 11 '14 at 20:25
  • @KUNJESHKUMARMISHRA You might want to back up some of your claims. – amanthethy Oct 11 '14 at 20:26

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.