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t400 batt. charging past set percentage

Discussion in 'Lenovo' started by drak10687, Jul 23, 2009.

drak10687 Notebook Enthusiast

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Hi,
I have a t400 with the big 9 cell batt. I have it set to start charging when below 60% and stop at 95%. This has been working great until a couple of days ago, when I noticed that after I turned it off the comp. off, it charged all the way to 100%. It happened today overnight again, when I left it in sleep mode.

I have not changed the batt. settings, and hovering over the batt. symbol it still says it should stop at 95%, and when its on and awake it does.

I do believe that it does not start charging until it is below 60% whether it is asleep or off.

Has anyone encountered this behavior before? I'm using Vista basic... maybe there was some recent update that triggered this... dunnoo...

Thanks.

drak10687, Jul 23, 2009

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cparker09 Notebook Geek

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I had this same issue. I had it set to charge when below 30% and charge to 90% in preparation for a trip (I usually have it charge to about 60 or 70%), but it charged to 100%. Sadly I don't know how to fix it, I ended up manually unplugging the power cord and letting it run down to about 90% and then plugging it back in so it would stop. It may simply be something it does when the battery gets close to 100% charge threshold it just goes the rest of the way.

cparker09, Jul 24, 2009

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