Serious problem of thinkpad T430s' battery! [ Edited ]

[thinkfly]

It's been confirmed that the recent batch of replacement battery woud still have capacity increased over time, introducing this problem again after several cycles of discharge and recharge. I think Lenovo should address the metering issues in the battery fast.

Moderator Note; subject edited to original

[us_hoschi]

I hope they fix that fast. It is really bad not be able to trust your battery. Also the wrong values seem to be a moving target and maybe change during discharge/charge-cycles

If your use GNU/Linux with Gnome this is a workaround, but of course it will not fix the problem and lead to correct values:

http://askubuntu.com/questions/92794/how-to-change-critically-low-battery-value

# use dconf for this

org.gnome.settings-daemon.plugins.power percentage-action # do $foo it at this point
org.gnome.settings-daemon.plugins.power percentage-critical # show critical warning at this point
org.gnome.settings-daemon.plugins.power percentage-low # show low message at this point
org.gnome.settings-daemon.plugins.power use-time-for-policy # If time based notifications should be used. If set to false, then the percentage change is used instead, which may fix a broken ACPI BIOS. -> change this to false

[wqh_getup]

Yes, I found the same problem that the replaced battery's FCC still going up, it is really annoying! 

[dissss]

Anyone has theirs go over 47.62 FCC?

Several people posted that's what theirs is reading and mine seems to have stabilised there

[melvsee]

my FCC is 47.62 Wh.

lenovo services contacted me today to ask me to try battery maintenance. i tried that, the battery ran down until it shut off.

when i restarted and got back into windows, the battery gauge showed 23% capacity with 11.13 Wh capacity left!

have informed them of this and hope they can resolve the problem soon.

if it is a miscalibrated reading, that means the true capacity is 36.49 Wh, which is about 84% of the design capacity of 43.29 Wh - a bummer considering that the battery is about a month old and only gone through 19 charge cycles.

[danfromtoronto]

my new battery went up to an FCC of 44.60 after a full charge.  After that I decided not let it overcharge so I am running it down and then up to 95 to 99%.  Doing this the FCC has actually come down to 44.54.  I guess I am hoping to "train" it to a decent range which hopefully will last. 

does anyone else have any other suggestions?

Dan

[tripplec]

There is a calibrate function in Power Manager for the battery maintenance- Perform Reset. Maybe its required but odd its not getting the correct feedback from the batteries internal charge controller.

[melvsee]

have been told to update my BIOS to 2.02. hope that helps!

[wqh_getup]

please tell us if that would help.

[dissss]

The release notes don't say anything about the battery issue so I'm skeptical