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    How long to recharge from 0 to 80 % battery level For the series 9 ?

    Discussion in 'Samsung' started by Laptopaddict, Jul 24, 2012.

  1. Laptopaddict

    Laptopaddict Notebook Deity

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    Anyone has a rough estimate ?

    For the 13 and 15 inch ?
     
    Laptopaddict, Jul 24, 2012
    #1
  2. Thors.Hammer

    Thors.Hammer Notebook Enthusiast

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    They don't have RapidCharge like a couple of the ThinkPads so you won't see 80% in 30 minutes.
     
    Thors.Hammer, Jul 24, 2012
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  3. kurri17

    kurri17 Notebook Guru

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    Im curious how long as well.

    Also, what if you set your series 9 to 80% but you leave it plugged in for hours AFTER it hits 80%
    Does it automatically cool/shut down? No worries of overheating/charging etc.??
     
    kurri17, Jul 25, 2012
    #3
  4. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    I haven't tried timing the charging but a few basic calculations would show that charging with the computer on will take at least hours because it's a 40W PSU and the computer is likely to be using 15W so that's 2 hours minimum (60 x 0.8)/25 * charging efficiency. Charging with the computer off should be faster. A higher rated PSU may give faster charging but i don't know if one is available.

    There is no need to worry about over-charging. Once the computer has reached 80% (if you have set that limit) then charging will stop and will not resume if the computer is left plugged into the mains power.

    John
     
    John Ratsey, Jul 25, 2012
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  5. jospoortvliet

    jospoortvliet Notebook Enthusiast

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    john - that overcharge thing, is that a bios or software thing? I Plan to run Linux on it and the Samsung software is not available there...
     
    jospoortvliet, Jul 29, 2012
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  6. Thors.Hammer

    Thors.Hammer Notebook Enthusiast

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    It can be set in the BIOS so Linux can benefit.
     
    Thors.Hammer, Jul 29, 2012
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  7. dart22

    dart22 Notebook Consultant

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    My NP900X3C went from 10% to 60 % in 1 Hour exactly and the laptop was on sleep while charging..
    and another 10% while powered on in 12 minutes...
    Hope that puts things in perspective !!
     
    dart22, Jul 29, 2012
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  8. mobilebuddha

    mobilebuddha Notebook Guru

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    i've charged my NP900X4C twice, each time took ~ 2 hrs to 80%. although for some reason it feels like the charge was a bit faster the 2nd time for some reason.. not that i timed it with a stopwatch so my #s might be off.
     
    mobilebuddha, Jul 30, 2012
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  9. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Is that with the computer off or sleeping?

    John
     
    John Ratsey, Jul 30, 2012
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  10. quidditchcap

    quidditchcap Notebook Enthusiast

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    My NP900X3B went from 30% to 80% in like 62 mins with me using the laptop at the same time.
     
    quidditchcap, Jul 30, 2012
    #10