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    2-prong vs 3-prong power adapter

    Discussion in 'Lenovo' started by hceuterpe, Jan 20, 2010.

  1. hceuterpe

    hceuterpe Notebook Evangelist

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    For the most recent 20V power adapters, can you take the removable cord from a 2-prong adapter and use it with one of their 3-prong adapters? Will the plug fit?
    It looks like it would, but I haven't been able to test it, and I only have the 2-prong IBM/Lenovo adapters, yet I have a bad feeling I might end up with a 3-prong when I buy a spare..
     
    hceuterpe, Jan 20, 2010
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  2. lead_org

    lead_org Purveyor of Truth

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    wouldn't work.
     
    lead_org, Jan 20, 2010
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  3. Mr.KL

    Mr.KL Notebook Evangelist

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    Not sure what you mean by recent nor how recent is different from non-recent but for a T61 I do it all the time. LO might be wrong.
     
    Mr.KL, Jan 20, 2010
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  4. lead_org

    lead_org Purveyor of Truth

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    i would like to see an example where you got the two prong ac cable to fit in your three prong adapter........
     
    lead_org, Jan 20, 2010
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  5. hceuterpe

    hceuterpe Notebook Evangelist

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    Yeah, the T61 adapter would fit with the T410. Anything T60 and newer..

    Though lead_org seems to disagree with what you said. Got an example?
     
    hceuterpe, Jan 20, 2010
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  6. lead_org

    lead_org Purveyor of Truth

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    power adapter plug that goes into the laptop are all the same in Lenovo Thinkpads (other than the W700 series) starting from T60, R60, X60... but the figure 8 AC power cable and the mickey mouse figure AC power cable are not interchangable in the three prong adapters. Because in the figure 8 power cable the notch between the two holes are not deep enough to allow it fit in the mickey mouse three pronged AC adapter.

    [​IMG]

    [​IMG]

    unless you want to cut the middle part of the figure 8 cable to make it fit, but this sort of modification is not recommended.
     
    lead_org, Jan 20, 2010
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  7. JabbaJabba

    JabbaJabba ThinkPad Facilitator

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    You are misinterpreting what lead_org wrote. He is answering your own question about the 2-pin vs. 3-pin compatibility, which has nothing to do with the plug going into the laptop or the adapter compatibility with ThinkPad models.

    Spot on.
     
    JabbaJabba, Jan 20, 2010
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  8. hceuterpe

    hceuterpe Notebook Evangelist

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    That's what I was asking, the removable cable going INTO the adapter. He understood me just fine.

    Thanks lead_org. I think what I'll do is buy 90W adapters. The adapter that came with my docking station is a 2-pin 90W adapters. Perhaps I can swap it with the external battery chargers, and on the happen chance I bring one of them somewhere that has only 2-pin (think cheap extension cord), it'll still work... I have a universal notebook adapter with 2-pin, and the spare 65W adapter 2-pin that will come with my T410. With all that, I think I'll be set..
    Wow, so I'll have 5 compatible AC adapters for a single laptop! Phew!
     
    hceuterpe, Jan 20, 2010
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  9. lead_org

    lead_org Purveyor of Truth

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    that is a lot of adapters for a single laptop.
     
    lead_org, Jan 20, 2010
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