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My battery has been strange since on 13.04. I left my office with battery almost 100% charged, came home took a shower, and when I went to turn on my computer, the battery was dead.

The power statics say battery not present.

What can I do?

I would like to add this was working fine before today on 13.04

dustin@dustin:~$ dmesg | grep battery
[    2.848289] ACPI: Battery Slot [BAT1] (battery present)
dustin@dustin:~$ cat /proc/acpi/battery/BAT1/info
cat: /proc/acpi/battery/BAT1/info: No such file or directory
dustin@dustin:~$ 
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@Alvar I was using in my office when this happened. I always used my battery to 0 and then full charged before unplugging. I came back from class, (went home as above) the battery was charged, so I unplugged it. It turned it on and it didn't respond. Toshiba P755 series. I bought the battery in March. I don't know how to measure the volts. –  dustin Jun 16 '13 at 4:39
    
How long did you charge the battery for? Did you turn the machine off/sleep/hibernate? Time it took for the battery to loose charge(drain)? –  Mitch Jun 17 '13 at 17:25
    
The battery charged for 8-10 hours. It was asleep and the time it took me to walk home and take a shower so 30-40mins. –  dustin Jun 17 '13 at 17:38
    
What OS did you have before, and how was the battery performance? Was the purchased battery OEM, or after market? –  Mitch Jun 18 '13 at 19:24
    
@Mitch the battery has always been used on a Linux system: Xubuntu or Ubunut. It is an after market battery designed for the computer. –  dustin Jun 18 '13 at 19:29
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1 Answer 1

up vote 2 down vote accepted

since I had similar issues with no discernible answer from the Ubuntu community (official or otherwise) I raised a bounty on your question.

However since then, I did install tlp which has fixed my problem, it is an advanced power management tool for Linux. I start tlp in battery or ac mode depending on what my power source is.

I would strongly suggest giving it a go.

In the terminal:

sudo add-apt-repository ppa:linrunner/tlp
sudo apt-get update
sudo apt-get install tlp tlp-rdw

sudo tlp ac start #or bat instead of ac
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Is there any documentation to read about tlp? –  dustin Jun 18 '13 at 19:29
    
linrunner.de/en/tlp/docs/… and the man pages - in terminal: man tlp –  Radagasp Jun 19 '13 at 19:46
    
Do you have to start it every time or just when you first install it? –  dustin Jun 19 '13 at 21:48
1  
dustin, you may do it that way. If there is a way to sense what the power input is, you could always write a script to handle this. Personally I am writing a little program that allows me to toggle a button on my tool bar. I'll be happy to share it once I have time to do it. –  Radagasp Jun 21 '13 at 12:42
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