Thinkpads Forum

I just recently purchase a used X31 and installed linux on it. The battery it came with seems to be in good condition, however it is in sore need of a battery meter reset. Under windows, the ThinkVantage power manager implements this functionality, running the battery down and charging it fully again. My question is: under linux would a full discharge followed by a full charge have the same effect? In other words - is the battery or some sort of firmware the thing that is keeping track of how long it can run, or is it the O.S.? How can I ensure that my batter meter under linux stays accurate? I understand that tp-smapi will allow me set charging thresholds to improve battery life, so I intend to investigate that, perhaps that module would have some access to other functionality? Any insight or knowledge would be appreciated.

-conartist6

To the best of my knowledge battery information is stored inside a chip in the battery. The best way to reset it under Linux or any other OS for that matter is to disable ALL shutdown programs i.e. when battery is low go to hibernate etc. Don't forget to switch them off in BIOS too, I am assuming the X31 has this in BIOS like most other TP's?

Then as you say run it down fully until there is literally no power left & the machine shuts down from lack of power, fully charge it & do the same again. I usually find after repeating this process the battery shows signs of improvement, if it doesnt then your gonna need a new battery......