Hi! > > Hmm, I jave a battery pack with reasonably good cells, but firmware killed > > it. IOW available for testing. > > That is likely a problem with the battery pack uC, we cannot override that > using any know firmware path in the ThinkPad. > > Does the thinkpad recognizes the presence of the battery pack? If it > doesn't, the pack uC is probably dead or in safe mode, and you'd need to > hardware-hack it. Yes, it does, and it reports everything ok... (Battery 100% full IIRC). Its just that machine dies immediately when AC is removed. > > (And who know, perhaps recalibrate command would bring it back to life?) > > AFAIK, the recalibrate command really just does this: > > 1. sets 'force discharge' flag on EC so that it starts discharging the > battery pack. Discharging stops when cell voltage drops close to the > minimum safety level. > > 2. sets stop threshold to 0 (100%) for that battery pack. > > That way, the box will fully-drain the pack, and then charge it to full. At > that point, the recalibration is complete (the battery pack uC will > auto-calibrate itself when it notices it has hit the fully-drained and > fully-charged points). > > You can monitor per-cell-group voltages through tp_smapi on a original IBM > battery pack, that functionality should still be around on the Lenovos. > Since this is not standard SBS functionality, it might not work on > non-original battery packs. IIRC I tried playing with tp_smapi and did not get anything useful. The pack should be original, and I guess I should try again. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
