On Wed, Oct 10, 2012 at 6:38 PM, Doron Shikmoni <[email protected]> wrote:
> On Wed, Oct 10, 2012 at 5:08 PM, sara fink <[email protected]> wrote: > >> Finally got to this issue. Here is the output of dmidecode regarding the >> battery. It shows 4 times portable battery >> (...) >> >> Looks like pretty much the same. Now how do I check if this is indeed a 6 >> cell battery or less? >> > > Yeah, they read off the same data, this was just a cross-check. > > So if I had to guess I'd say that the battery mis-reports its attributes > via DMI data, big time (see all the fields that are filled with junk > placeholders rather than actual info). > Indeed. Although I have this feeling that all companies do the same, simply because they don't care too much about these fields. > > Could it be that the battery you're holding is listed as "Samsung > AA-PB9NC6B *replacement* battery" (emphasis on "replacement" if you don't > read HTML mail)? This would mean it's a low cost aftermarket vendor rather > than original Samsung, which can explain why its firmware is broken so > profoundly. > It is not a replacement. It's a original battery of samsung. It has 4400mAh 48Wh, 11.1V. BUT, it's written: Battery cells made in Korea. Assembled in China. It's a new laptop bought from bug. > > At any rate, what you really care about is the battery's capacity - and > that is the 4400mAh figure. Number of cells per se is not important (though > relatively speaking, it translates into capacity). From a casual look > around, the typical 4400mAh replacements for this particular Samsung > battery are 6-cell, Li-Ion. > > Doron > > > > > >> >> >> On Tue, Sep 11, 2012 at 10:18 PM, Doron Shikmoni <[email protected]>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 <[email protected]> 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 >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> Linux-il mailing list >>>> [email protected] >>>> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il >>>> >>>> >>> >> >
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