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    did my X201's battery just die??

    Discussion in 'Lenovo' started by afhstingray, Sep 9, 2011.

  1. afhstingray

    afhstingray Notebook Prophet

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    A few days ago I put my X201 into sleep mode and forgot about it. The battery drained and when i plugged it in today its not charging. The battery is barely a year old and only has about 50 cycles.

    What do i do?

    thanks in advance
     
    afhstingray, Sep 9, 2011
    #1
  2. Colonel O'Neill

    Colonel O'Neill Notebook Deity

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    In my experience, it takes a while for it to start charging after a total discharge.
     
    Colonel O'Neill, Sep 9, 2011
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  3. vinuneuro

    vinuneuro Notebook Virtuoso

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    What does Power Manager say.
     
    vinuneuro, Sep 9, 2011
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  4. afhstingray

    afhstingray Notebook Prophet

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    well its been 4 hours now and its still at 0%.

    ok this is different--- now power manager says "this battery has been completely discharged and may take 10 hours or more to charge"

    i've never seen something like this on my other laptops
     
    afhstingray, Sep 9, 2011
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  5. Colonel O'Neill

    Colonel O'Neill Notebook Deity

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    I've seen that. Lithium ion chemistries really do not like being totally discharged. It takes some pretty careful nursing of the input wattage by the onboard controller to get it charging.
     
    Colonel O'Neill, Sep 9, 2011
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  6. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    1. Also make sure that you set a critical battery alarm to either hibernate or shut down to avoid unwanted deep discharge in future.

    2. The bay battery in my T420s discharges to zero % before switching over to the main battery but there's no long delay in starting recharge (except that the BIOS is set to recharge the main battery first). perhaps zero on bay batteries isn't really zero.

    John
     
    John Ratsey, Sep 10, 2011
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  7. Colonel O'Neill

    Colonel O'Neill Notebook Deity

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    Maybe it's due to the Li-Poly chemistry of the bay battery rather than Li-Ion of the main battery?
     
    Colonel O'Neill, Sep 10, 2011
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  8. afhstingray

    afhstingray Notebook Prophet

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    ok its still not working. any suggestions?
     
    afhstingray, Sep 10, 2011
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  9. vēer

    vēer Notebook Deity

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    I found interesting solution online recently while looking how to revive an old Travelmates battery that I got in my possesion, Im yet to try that out myself tho:
    http://www.heritage-tech.net/746/reviving-a-dead-notebook-battery/

    Not sure if that works, but if every other sane method fails, perhaps you could try this one, if its out of warranty.
     
    vēer, Sep 10, 2011
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  10. lead_org

    lead_org Purveyor of Truth

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    try leaving the laptop in bios mode, and let the battery charge whilst in the bios mode.
     
    lead_org, Sep 10, 2011
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  11. afhstingray

    afhstingray Notebook Prophet

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    nothing worked. but suddenly yesterday it started charging and seems to be in perfect condition. what on earth happened?
     
    afhstingray, Sep 15, 2011
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  12. Colonel O'Neill

    Colonel O'Neill Notebook Deity

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    Probably just takes that long to re-initialize the cells.
     
    Colonel O'Neill, Sep 15, 2011
    #12