Toshiba Portege R100 does not recognize battery
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From: Dominik Ałaszewski on 29 Jul 2010 03:51 Hi to all, Toshiba Portege R100 with the original internal battery (I have bought second-hand one about a week ago). The problem is as follows: very often the system does not recognize laptop battery (looks like it's simply drawn from the slot). No battery level indicator, no system battery settings available etc. I suspect hardware failure because there are no battery lights (diodes) either (should be orange for charging, green full charged). If I disconnect the AC power laptop works on the "removed" battery flawlessly (system say "battery powered"), no battery level indicator or warnings until it just turns off. Sometimes, just before turning off, battery light flashes as it's supposed to. Interestingly, when I remove and reinsert battery while laptop is turned on, quite often the battery is "seen"- system battery levels, laptop lights work. But after an hour or so stop. Sometimes there are battery lights lit, but system doesn't "see" the battery. Sometimes (rarely) the lights are off, the system shows "battery absent", but battery charge status displays :-) I have cleaned battery contacts, no difference. Thus my questions to the gurus: - Is it really a hardware failure or maybe system ACPI problem? - If it's hardware, which one is probably dying: the battery (an old one, maybe it should retire as it deserved) or laptop itself? Thank you very much in advance. Regards, Dominik
From: Bob Villa on 29 Jul 2010 06:20 On Jul 29, 2:51 am, Dominik A³aszewski <dominik.alaszew...(a)gmail.com> wrote: > Hi to all, > > Toshiba Portege R100 with the original internal battery > (I have bought second-hand one about a week ago). > > The problem is as follows: very often the system does not > recognize laptop battery (looks like it's simply drawn from the slot). > No battery level indicator, no system battery settings available etc. > I suspect hardware failure because there are no battery lights > (diodes) > either (should be orange for charging, green full charged). > > If I disconnect the AC power laptop works on the > "removed" battery flawlessly (system say "battery powered"), > no battery level indicator or warnings until it just turns off. > Sometimes, just before turning off, battery light flashes > as it's supposed to. > > Interestingly, when I remove and reinsert battery while laptop > is turned on, quite often the battery is "seen"- system > battery levels, laptop lights work. But after an hour or so stop. > > Sometimes there are battery lights lit, but system doesn't "see" > the battery. Sometimes (rarely) the lights are off, the system shows > "battery absent", but battery charge status displays :-) > > I have cleaned battery contacts, no difference. > > Thus my questions to the gurus: > - Is it really a hardware failure or maybe system ACPI problem? > - If it's hardware, which one is probably dying: the battery > (an old one, maybe it should retire as it deserved) or laptop itself? > > Thank you very much in advance. > > Regards, > > Dominik Same results will the 2nd battery?
From: Dominik Ałaszewski on 30 Jul 2010 02:46 > Same results will the 2nd battery? I haven't got one (second-hand laptop). Regards, Dominik
From: Dominik Ałaszewski on 30 Jul 2010 02:47 > Same results will the 2nd battery? I haven't got one (second-hand laptop). Regards, Dominik
From: Bob Villa on 30 Jul 2010 18:54
On Jul 29, 2:51 am, Dominik A³aszewski <dominik.alaszew...(a)gmail.com> wrote: > Hi to all, > > Toshiba Portege R100 with the original internal battery > (I have bought second-hand one about a week ago). > > The problem is as follows: very often the system does not > recognize laptop battery (looks like it's simply drawn from the slot). > No battery level indicator, no system battery settings available etc. > I suspect hardware failure because there are no battery lights > (diodes) > either (should be orange for charging, green full charged). > > If I disconnect the AC power laptop works on the > "removed" battery flawlessly (system say "battery powered"), > no battery level indicator or warnings until it just turns off. > Sometimes, just before turning off, battery light flashes > as it's supposed to. > > Interestingly, when I remove and reinsert battery while laptop > is turned on, quite often the battery is "seen"- system > battery levels, laptop lights work. But after an hour or so stop. > > Sometimes there are battery lights lit, but system doesn't "see" > the battery. Sometimes (rarely) the lights are off, the system shows > "battery absent", but battery charge status displays :-) > > I have cleaned battery contacts, no difference. > > Thus my questions to the gurus: > - Is it really a hardware failure or maybe system ACPI problem? > - If it's hardware, which one is probably dying: the battery > (an old one, maybe it should retire as it deserved) or laptop itself? > > Thank you very much in advance. > > Regards, > > Dominik Measure the battery voltage if you can...you may have a dead cell and the charging circuit gets confused. Each cell is 3.2-3.6V on a lithium battery. Just a guess. |