Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I'm having an issue in which I have installed a new battery that will not charge to it's full capacity. I'm looking for a manner to change some setting in which Ubuntu will allow a full charge. After searching through battery problems for a number of hours I am beginning to have a feeling that this has to do with a design in Ubuntu that may be improved upon and is not an issue with Batteries.

Information after running cat /sys/class/power_supply/BAT0/uevent:

POWER_SUPPLY_STATUS=Discharging
 POWER_SUPPLY_PRESENT=1
 POWER_SUPPLY_TECHNOLOGY=Li-ion
 POWER_SUPPLY_CYCLE_COUNT=0
 POWER_SUPPLY_VOLTAGE_MIN_DESIGN=23644000
 POWER_SUPPLY_VOLTAGE_NOW=23644000
 POWER_SUPPLY_CURRENT_NOW=1995000
 POWER_SUPPLY_CHARGE_FULL_DESIGN=6000000
 POWER_SUPPLY_CHARGE_FULL=5852000
 POWER_SUPPLY_CHARGE_NOW=5560000
 POWER_SUPPLY_MODEL_NAME=PA3535U-1BRS
POWER_SUPPLY_MANUFACTURER= 
POWER_SUPPLY_SERIAL_NUMBER=0023

The Battery is designed for over 6 hours of battery life but is only supplying 2.5 hours. Is there some sort of fix, any sort of fix, that I may use?

share|improve this question
    
I believe that the charging of the battery is handled by the BIOS; what you're seeing is what Ubuntu estimates. Try turning off the computer and then charging it. It should only go to 2.5 hours and no more. –  Vreality Mar 12 '13 at 2:27
    
There is no way that I can make Ubuntu recognize more than 2.5 hours of charge? –  OccupyTesla Mar 12 '13 at 5:00
    
I don't know if your battery has more charge than that. Ubuntu should not inhibit your battery. What happens if you charge it while the laptop is off? Does not it charge as much as you would expect? Then it's not Ubuntu's fault. If it does charge as much as you would think, then that's probably an issue with acpi (and not Ubuntu). –  Vreality Mar 12 '13 at 12:54
    
Thanks for the input VReality, seems as if I'll be stuck with 2.5 hours for battery life. Tried to get the latest bios update for my Toshiba L305-S5919, was hoping it would help to set up the new battery, yet the drivers could not be installed onto my thumb drive because the files are too old to be used by any of my computers. –  OccupyTesla Mar 12 '13 at 15:37
    
Just disappointed is all. This is the new battery I've bought toshibadirect.com/td/b2c/adet.to?poid=366629 –  OccupyTesla Mar 12 '13 at 15:39
show 1 more comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.