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    Power adapter question - T61

    Discussion in 'Lenovo' started by nivla, Nov 16, 2009.

  1. nivla

    nivla Notebook Guru

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    I went from a standard battery to an extended 6-cell battery on my T61. Does this system need a 90w power supply rather than the 65w PS that came with it?

    My system is the 7661 and my co-worker has a 7663. His system came with a 90w PS and mine with a 65w PS. Why is that?

    thanks
     
    nivla, Nov 16, 2009
    #1
  2. Stewie Griffin

    Stewie Griffin Notebook Consultant

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    the 7661 refers to T61 with the T7300 processor which I'm guessing is yours.
    Your friend has a T7500 processor.

    you should be fine with just the 65w PS.

    I found this link which should help you

    http://www-307.ibm.com/pc/support/site.wss/MIGR-67665.html#65

    I dont know why you got the 65w, in theory it shouldnt matter. If you want the detailed explanation in why it would work I can explain it to you. That is if you want lol
     
    Stewie Griffin, Nov 16, 2009
    #2
  3. cassiohui

    cassiohui Notebook Evangelist

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    cassiohui, Nov 16, 2009
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  4. StealthTH

    StealthTH Notebook Evangelist

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    Here is the deal with the different power supplies:

    1.) All Thinkpad's with discreete graphics get the 90w adapter

    2.) All Thinkpad's with Intel integrated graphics get the 65w adapter

    Since you only changed battery you will not have to change power adapter.
     
    StealthTH, Nov 16, 2009
    #4
  5. lead_org

    lead_org Purveyor of Truth

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    the 90 watt adapter allows the battery to charge faster, but it is nearly twice as heavy as the 65 watt version.
     
    lead_org, Nov 16, 2009
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  6. cn_habs

    cn_habs Notebook Deity

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    The small and lighter 65W one is the right one for you.

    Once, my friend forgot his T400's 90W adapter at home and successfully recharged his battery using my T61's 65w. Did I worry for my adapter ...
     
    cn_habs, Nov 16, 2009
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  7. BaldwinHillsTrojan

    BaldwinHillsTrojan Notebook Evangelist

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    Ive used both but currently use the 90W. Doesnt matter. Just need the 90W for faster charge time. Had checked with Lenovo on this too. He has a discrete card and as a matter of matching up compoments they usually ship with the 90W.
     
    BaldwinHillsTrojan, Nov 16, 2009
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  8. cassiohui

    cassiohui Notebook Evangelist

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    oh i see....thanks for the info!
     
    cassiohui, Nov 17, 2009
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  9. nivla

    nivla Notebook Guru

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    Thanks everyone for the clarification.
     
    nivla, Nov 17, 2009
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  10. t30power

    t30power Notebook Deity

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    But be careful if you use a 65W adapter + discrete graphics while playing + charging your battery :p
     
    t30power, Nov 17, 2009
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  11. Stewie Griffin

    Stewie Griffin Notebook Consultant

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    I dont see why you need to to be careful
     
    Stewie Griffin, Nov 17, 2009
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