Thinkpads Forum

If I leave my t61p in hibernation for 2 weeks the battery is discharged. I rather doubt this normal, or am I mistaken?

-er

Funny you should mention this - it's happened to me twice as well; thought I fat-fingered and put it in standby by mistake, now I'm not sure.

Be interesting to see what responses come in.

If your system is set to suspend to ram, it's normal. This is the default for Windows Vista. I think (not sure) Vista did not switch from STR to STD (suspend to disk). So battery have to fead the memory to keep the datas.

With Windows XP, after some hours, the latopops switch from STR to STD. In this mod, all the ram data are writen in the hard drive and the system goes off (like power it off). Battery did not discharge to keep data.

In fact, it was in hibernation, not sleep, so it wouldn't be using any current at all. I realize that in sleep there is a small amount of electricity used to maintain what is in ram.

I don't think has anything to do with which operating system. Hibernation is hibernation is hibernation.

-er

Windows Vista don't use the same *hibernate* than Windows XP. While Windows XP have tow different mods STR and STD, Windows Vista use an other one (close to STR). I don't use this OS any more, but I remember some strange behavior when I close the laptop and let it alone.

If you search on Microsoft Windows Vista support, you can find an option to have back STR and SDT like in Windows XP.

But, hibernation means the computer is off, with everything saved to a file that is used when resuming. I don't see how the operating system makes a difference, except for the time and/or the ease of resuming. No activity is done. The machine is off. It seems to me that the battery is defective.

-er

Sorry, I can't explain by my own, I don't speak english good enough to do it. So you can read this :


http://bloggingabout.net/blogs/erwyn/ar ... ained.aspx

http://support.microsoft.com/kb/929658

Your references discuss hybrid sleep, which if enabled disables hibernation because hybrid sleep is a combination of sleep and hibernation. The computer is in sleep mode, but the system has also been saved to hiberfil.sys, so that if there is an interruption of power the computer can be brought out of hibernation. I don't have hybrid sleep enabled, so this doesn't apply to my case. The other cases don't apply here either because my problem isn't that the system won't go into hibernation but that the battery is drained after 2 weeks. However, thank you for attempt to help.

Je peux tout expliquer en français si vous en avez besoin.

-er

Sorry, I did not understand your issue. The Windows Vista hybride sleep is a common issue. Even in french, I don't have a better idea.

While in true hibernate (as you explain), it seems to me that battery must keep on more than two weeks.

This happened to me again this weekend - the computer's been in hibernation for a week or so, and the pack is flat dead. This makes three times in the last couple of months.

Now, I'm running XP, but I'm still concerned about this - the whole point of hibernation is to not use any power, so what the devil's going on?

I guess I'm calling Lenovo tomorrow and see what they have to say on the matter.

Rob

It would make no difference which operating system is in use, xp or vista. This seems to be a battery problem. Let us know, please, what they say when you call.

-er

Rob, what did Lenovo say?

I too have this problem (on a new R61 with XP Pro) that the battery drains during hibernation (Fn+F12).

Battery fine, according to thinkpad utilities. Anyway it certainly doesn't drain when I use the 'Turn off' option instead of 'Hibernation'.

Haven't yet tried the trick of disconnecting battery after hibernation, but certainly would hope for a less clunky solution.

Many people on this and other forums report this problem; none show a solution. Any progress?

Regards Ron
PS am a long-term user of thinkpads and a techie

rl347 wrote:Rob, what did Lenovo say?

I too have this problem (on a new R61 with XP Pro) that the battery drains during hibernation (Fn+F12).

Battery fine, according to thinkpad utilities. Anyway it certainly doesn't drain when I use the 'Turn off' option instead of 'Hibernation'.

Haven't yet tried the trick of disconnecting battery after hibernation, but certainly would hope for a less clunky solution.

Many people on this and other forums report this problem; none show a solution. Any progress?

Regards Ron
PS am a long-term user of thinkpads and a techie

Ron,

I apologize for not posting an update on this, but I have not yet had an opportunity to call Lenovo on this - been swamped by a business trip, a long-planned vacation weekend, and far too many things on the to-do list at home. I haven't forgotten about it, though, and will probably send Lenovo an email in the next day or two to inquire about this.

Rob

Rob Mayercik wrote:

rl347 wrote:

Rob thanks for responding.

I've solved the problem. I went into the bios and disabled everything I wasn't using and the wakeup options.e.g.:
Wake on Lan / Flash over LAN / Serial Port (?) / Parallel Port (?) / Always on USB / Bluetooth / 1394. I also disabled the predesktop fingerprint reader, which for the moment I am not using.

As a result the battery retains its power over 24 hours of hibernation (within 1%). This applies whether I hibernate with the power cord connected or not.

So, sorted! Of course, none of these changes should affect hibernation, but there you go! Sometime I might work out which one/combination of these has achieved the result - but not this month!

Good luck with yours.

Ron