hi! i found an article on a german mac site about one week ago. there was a report about apple users, who had problems with ibook batteries and had them replaced by apple. there was also a link to apple's discussion site http://docs.info.apple.com/article.html?artnum=14449 i read it very quickly, but it might be useful! it describes how to reset the pmu bye, clemens
On Thu, Mar 20, 2003 at 08:46:25PM +0100, Mich Lanners wrote: > On 20 Mar, this message from Michel D�nzer echoed through cyberspace: > > On Don, 2003-03-20 at 11:42, Edward G. Speyer wrote: > > >> Note how my max_charge has dropped from 3404 to 2874. Should I be > >> alarmed or is this just the PMU giving me dodgy statistics? (It does > >> seem odd how max_charge only drops when the battery is emptied.) > > > > I do think deep discharge is the worst enemy of these batteries, > > unfortunately. I usually do at least one deep discharge a day, and the > > battery in the old TiBook lost about half an hour of capacity in less > > than a year. Compare that to the good old Pismo, the battery of which > > was like new after almost two years of daily deep discharges... > > Yeah, I'm seeing the same on my TiBook I. I am down to 1889 of > max_charge. Not a good sign.... > > I am wondering whether this sin't (at least to some extent...) the > intelligent battery's fault: I do find that sometimes the last 10-20 > percent of charge are used up rather fast. My fear is that the battery > controller will declare 'end of discharge' reached when there is still > some capacity left, resetting the max_charge to a lower value. > > Anybody have instructions for resetting the battery's controller (like > there used to be available for some early Powerbooks, maybe 500 sereis)? > Or failing that, instructions for replacing just the accumulator > elements instead of bying a new battery pack? > > Cheers > > Michel > > ------------------------------------------------------------------------- > Michel Lanners | " Read Philosophy. Study Art. > 23, Rue Paul Henkes | Ask Questions. Make Mistakes. > L-1710 Luxembourg | > email [EMAIL PROTECTED] | > http://www.cpu.lu/~mlan | Learn Always. " > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] >
