Quantcast Difference between 6 and 9 cell on a 15.4" T61p.

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  1. #1
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    Default Difference between 6 and 9 cell on a 15.4" T61p.

    Hi, I currently have a 6-cell and getting about 1,5 hour of video playback or internet surfing on highest brightness setting (made a change in the bios so it's the same level as it would be on AC power). Can anybody tell me from their experience how much time I would get from switching to a 9-cell. On paper, I should get 46% increase (82.24Wh vs 56.16Wh). Is it true in real life? Also, I know that 9 cell stick out a bit. Does anyone have any issues with that? I am trying to decide if a 9-cell is worth spending $$. Thanks.

  2. #2
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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    Yes, it definitely is worth the money.

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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    yes, get it

  4. #4
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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    i don't have a problem with the extra inch sticking out the back for the extra hour or two of battery life.
    Thinkpad T61p | Intel Core 2 Duo T7500 @ 2.2GHz | Intel 4965AGN Wireless | 4GB Ram | 1GB Intel Turbo Memory | 256MB Quadro FX570m | UltraNav + Fingerprint Reader | 120GB 5400rpm Hard Drive | Dual boot : Windows Vista Ultimate and Ubuntu Gutsy Gibbon

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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    I have a 9-cell in my T61P. At times I don't like the added weight, balance, but at times I enjoy the 4+ hours of battery life, with moderate settings.

    A higher capacity battery pack will usually have a longer life, given the same power drain. The depth of discharge will be more shallow.

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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    I would go for the 9-cell it really isn't bad having it stick out the back. It does add a little weight but I have never noticed that it is heavy or uncomfortable to carry.

  7. #7
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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    If you really do get ~1.5 hours then that means your computer was using on avg 37.44 watts(this does seem very high for just watching a movie and especially high for internet surfing(i use around at most 25 watts for internet surfing) but if you really do then on a 9 cell you would get 2 hours and 12 minutes. This seems very low so I think you have more battery life on that 6 cell; At least 2 hours seems a bit more reasonable but still low as that means on avg 28 watts are being used. On a 9 cell 28watts would give you just about 3 hours.(this is most likely video and I still think its high, if i may repeat,) as for webbrowsing i dont think it'll ever exceed 25 watts

    With everything lowest and almost everything off(No ext hd,cdrom, wifi off, bluetooth off, screen lowest brightness, 15hz refresh rate, cpu @ 600 mhz @ .95v, hd turn off after 30 seconds) i use around 12 watts, if i don't do much such as if i am reading cached articles or pdfs word documents etc in low-med ambient light. This would give me 4 hours and 40 minutes but since i am most likely going to have random spikes of power usage then its safe to say i am going to get 4 hours, with 9 cell i am most likely going to get 6 hours like this
    Last edited by eatbuckshot; 30th March 2008 at 05:50 PM.
    Asus V6J | 2 GB DDR667 | 100 GB 7200 | 15.1" SXGA+@100 hz Geforce 7400 550/550
    T61P | 2 GB ddr667 | 100 GB 7200
    14.1" SXGA+ @ 150hz refresh rate
    WaTeF, 150hz on an LCD let alone a laptop LCD..(ty LVDS)

  8. #8
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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    on highest settings my laptop lasts 3+ hours with the 9 cell

    and i can easily make that go a LOT longer if i turned down the brightness

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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    Thanks, I might have to get it then. I wonder what should I do with a spare 6-cell.

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    Default Re: Difference between 6 and 9 cell on a 15.4" T61p.

    ebay






    .

 

 

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