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Thread: Battery design capacity is zero

  1. #1
    Join Date
    Feb 2013
    Beans
    2

    Battery design capacity is zero

    Hi,

    I've a Lenovo unit for which the battery design capacity is reported as zero. This is a brand new unit.

    In /sys/class/power_supply/BAT1 I can find the following information:

    POWER_SUPPLY_NAME=BAT1
    POWER_SUPPLY_STATUS=Charging
    POWER_SUPPLY_PRESENT=1
    POWER_SUPPLY_TECHNOLOGY=Unknown
    POWER_SUPPLY_CYCLE_COUNT=1491
    POWER_SUPPLY_VOLTAGE_MIN_DESIGN=1000
    POWER_SUPPLY_VOLTAGE_NOW=11820000
    POWER_SUPPLY_POWER_NOW=635500000
    POWER_SUPPLY_ENERGY_FULL_DESIGN=0
    POWER_SUPPLY_ENERGY_FULL=47520000
    POWER_SUPPLY_ENERGY_NOW=36350000
    POWER_SUPPLY_MODEL_NAME=
    POWER_SUPPLY_MANUFACTURER=Li-Ion
    POWER_SUPPLY_SERIAL_NUMBER=PABAS0241231

    At first, I thought that this was a battery issue, but when I use Windows based battery tools, I get good values for the 3 capacity values:
    - design capacity
    - last full charged capacity
    - current capacity

    These 3 values are different in windows, so it's not that one of the capacity values is reused for one of the other values.

    Any idea what the problem can be? Is this a Ubuntu defect?

    Thanks.

  2. #2
    Join Date
    Feb 2013
    Beans
    2

    Re: Battery design capacity is zero

    Fyi: the unit type is Lenovo G780.

    Does anyone have this problem as well?

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