question about lshw

[sara fink]

Finally got to this issue. Here is the output of dmidecode regarding the
battery. It shows  4 times portable battery


Handle 0x0024, DMI type 22, 26 bytes
Portable Battery
        Location: Location of the battery
        Manufacturer: Battery Manufacturer
        Manufacture Date: 01/01/2012
        Serial Number: Serial Number
        Name: Battery Name
        Chemistry: Nickel Cadmium
        Design Capacity: Unknown
        Design Voltage: Unknown
        SBDS Version: SBDS Version Number
        Maximum Error: Unknown
        OEM-specific Information: 0x12345678

Handle 0x0025, DMI type 22, 26 bytes
Portable Battery
        Location: Location of the battery
        Manufacturer: Battery Manufacturer
        Manufacture Date: 01/01/2012
        Serial Number: Serial Number
        Name: Battery Name
        Chemistry: Nickel Cadmium
        Design Capacity: Unknown
        Design Voltage: Unknown
        SBDS Version: SBDS Version Number
        Maximum Error: Unknown
        OEM-specific Information: 0x12345678

Handle 0x0026, DMI type 22, 26 bytes
Portable Battery
        Location: Location of the battery
        Manufacturer: Battery Manufacturer
        Manufacture Date: 01/01/2012
        Serial Number: Serial Number
        Name: Battery Name
        Chemistry: Nickel Cadmium
        Design Capacity: Unknown
        Design Voltage: Unknown
        SBDS Version: SBDS Version Number
        Maximum Error: Unknown
        OEM-specific Information: 0x12345678

Handle 0x0027, DMI type 22, 26 bytes
Portable Battery
        Location: Location of the battery
        Manufacturer: Battery Manufacturer
        Manufacture Date: 01/01/2012
        Serial Number: Serial Number
        Name: Battery Name
        Chemistry: Nickel Cadmium
        Design Capacity: Unknown
        Design Voltage: Unknown
        SBDS Version: SBDS Version Number
        Maximum Error: Unknown
        OEM-specific Information: 0x12345678

and the output of lshw:

  *-battery:0
       description: Nickel Cadmium Battery
       product: Battery Name
       vendor: Battery Manufacturer
       physical id: 1
       version: 01/01/2012
       serial: Serial Number
       slot: Location of the battery
  *-battery:1
       description: Nickel Cadmium Battery
       product: Battery Name
       vendor: Battery Manufacturer
       physical id: 2
       version: 01/01/2012
       serial: Serial Number
       slot: Location of the battery
  *-battery:2
       description: Nickel Cadmium Battery
       product: Battery Name
       vendor: Battery Manufacturer
       physical id: 3
       version: 01/01/2012
       serial: Serial Number
       slot: Location of the battery
  *-battery:3
       description: Nickel Cadmium Battery
       product: Battery Name
       vendor: Battery Manufacturer
       physical id: 4
       version: 01/01/2012
       serial: Serial Number
       slot: Location of the battery


Looks like pretty much the same. Now how do I check if this is indeed a 6
cell battery or less?


On Tue, Sep 11, 2012 at 10:18 PM, Doron Shikmoni <doron at isoc.org.il> wrote:

> Hello Sara,
>
> A couple comments:
>
> 1. lshw takes (most of) its data out of DMI, and interprets some of it
> based on hardcoded constants. This might translate into incorrect
> interpretation for some of the info, in this case, the battery's chemistry
> or the number of batteries. Another possibility is that the battery or the
> laptop wrongly reports its own attributes, or some similar discrepancy.
>
> It might be interesting to take the output of dmidecode and compare notes
> with lshw.
>
> 2. The fact that you get a report for more than one battery is orthogonal
> and unrelated to the number of cells. The cells (4,6, or 9 of them) are all
> part of one battery, and do not represent separate batteries. In other
> words, for one 6-cell battery, the correct report should have been one
> battery, not 6.
> So the fact that you received a report about batteries 0-3 does not
> indicate 4 cells, but rather, incorrect counting of battery instances by
> lshw (or incorrect DMI reporting by Mr. MoBo).
>
> Hope this helps,
> Doron
>
>
>
>
> On Sun, Sep 9, 2012 at 5:29 PM, sara fink <sara.fink at gmail.com> wrote:
>
>> I ran lshw and found out about the battery of the laptop that it has 4
>> cells. It appears as battery 0, battery 1, battery 2, battery 3. However,
>> based on the model of the battery it is supposed to be 6 cells. I was
>> wondering which one is correct.
>>
>> The model of the battery is Samsung AA-PB9NC6B  11.1V, 4400 mAh. On the
>> battery it shows it's Li-Ion battery. lshw shows it's nickel cadmium.
>>
>>   *-battery:0
>>        description: Nickel Cadmium Battery
>>        product: Battery Name
>>        vendor: Battery Manufacturer
>>        physical id: 1
>>        version: 01/01/2012
>>        serial: Serial Number
>>        slot: Location of the battery
>>   *-battery:1
>>        description: Nickel Cadmium Battery
>>        product: Battery Name
>>        vendor: Battery Manufacturer
>>        physical id: 2
>>        version: 01/01/2012
>>        serial: Serial Number
>>        slot: Location of the battery
>>   *-battery:2
>>        description: Nickel Cadmium Battery
>>        product: Battery Name
>>        vendor: Battery Manufacturer
>>        physical id: 3
>>        version: 01/01/2012
>>        serial: Serial Number
>>        slot: Location of the battery
>>   *-battery:3
>>        description: Nickel Cadmium Battery
>>        product: Battery Name
>>        vendor: Battery Manufacturer
>>        physical id: 4
>>        version: 01/01/2012
>>        serial: Serial Number
>>        slot: Location of the battery
>>
>>
>>
>>
>> _______________________________________________
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>> Linux-il at cs.huji.ac.il
>> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>>
>>
>
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