Laptop travel - sleep or hibernate?

Discussion in 'Windows Vista Performance' started by Ethan, Sep 13, 2007.

  1. Ethan

    Ethan Guest

    I took some time to look around the web, but couldn't find an answer there or
    on the Vista help files to a very simple, straightforward question: is it
    safe to travel with ones laptop without fully powering it down, i.e., in
    sleep rather than hibernated/off? I always understood this to be highly NOT
    recommended in XP, but with the improved sleep version for Vista, I wasn't
    sure. What is more, the Vista help file says to only turn off when absolutely
    necessary (e.g., memory addition), suggesting that sleep is ok for travel.
    Ethan, Sep 13, 2007
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  2. Ethan

    Chris Blunt Guest

    I would only ever use hibernate (or power off) if traveling. I don't
    see any benefits of using sleep in that situation, only risks.

    Chris Blunt, Sep 13, 2007
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  3. Ethan

    David Guest

    sleep will consume battery power, so if you are traveling and therefore
    dont have the laptop plugged in, you want to hibernate or shut it off,
    rather than put it to sleep.

    David, Sep 13, 2007
  4. Richard G. Harper, Sep 13, 2007
  5. Ethan

    Michael Guest

    VISTA sleep mode WITH hybrid sleep enabled allows the battery to be depleted
    without damage to the disk contents and will resume where it left off..
    If you do not enable hybrid sleep than you have the same possibility of
    damage as in XP.
    In either case with sleep you will arrive after travel with a battery with
    low charge and possibly a depleted battery. By physics you are allotted so
    any deep discharges until the battery needs to be replaced.

    My recommendation: If it is going to be unplugged for more than a couple of
    hours, then hibernate.

    Michael, Sep 13, 2007
  6. Ethan

    John Guest

    Test both first to be sure you don't end up with a BSOD or frozen computer.
    John, Sep 13, 2007
  7. Ethan

    Chris Blunt Guest

    That's an interesting comment. I've always tried to completely
    discharge my battery before recharging it to avoid the "memory-effect"
    from partly discharging. I know that's not so much of a problem now
    with modern batteries, but I didn't realise completely discharging
    could cause damage.

    Still on this subject, how would people suggest storing a battery
    that's not being used while a laptop is being used on mains power? Do
    you fully charge it and then remove it from the laptop, or fully
    discharge it first?

    Chris Blunt, Sep 14, 2007
  8. Ethan

    Michael Guest

    The older NiCad batteries did have the 'memory' effect and a full discharge
    every once in a while would reset them. Newer Lithium Ion and Nickel Metal
    Hydride (?) units don't show that effect (computers with them don't seem to
    have a 'battery discharge' program anymore).

    The effect of deep discharge of newer batteries is very much less than it
    used to be, one reason is much better charging units that prevent heavy
    currents and high heat. Draining the battery is something to be avoided but
    not to panic about. Again modern power units shut down before damage should
    occur. Running down a battery 'completely and then storing it for a long
    time so that even the residual charge dissipates can result in a battery
    that will no longer accept a charge. For that reason batteries should be
    fully charged before being removed and stored. They should also be
    used/charged at some interval (6 months or so would seem right to me).

    The failure mode for many batteries is that one of the cells (in series)
    begins to be unable to hold as much charge as the others. During discharge
    it runs out before the others and effectvly 'inverts' because the current
    running through it from the rest of the string sees a 'resistanc' or
    negatinve voltage instead of the positive voltage boost it is supposed to
    provide. At this point that cell will begin to overheat, also it may not be
    able to accept a charge again if it has spent much time 'inverted'.

    Michael, Sep 14, 2007
  9. If its something important on your laptop then..

    save your work and back it up and keep the backup with you not the laptop (a
    usb stick or two is good here)..
    then either hibernate or shutdown depending on how long you want to wait for
    start up.
    sleep is OK if you are not putting the laptop in a planes hold or somewhere
    like that but you don't want to take risks for nothing.
    [email protected], Sep 15, 2007
  10. Ethan

    AJ Babao Guest

    if your vista powered laptop goes on Sleep mode or hybernate mode make sure
    your laptop won't be experiencing nasty bumps or dings while moving around
    because once you do.. hard disk failures have been known to happen. your
    safest bet, just power the laptop off while moving that way you'll protect
    your laptop from imminent damage. use the sleep and hybernate mode while in
    your room or hotel. not while on transit.
    AJ Babao, Sep 17, 2007
  11. Ethan

    Maureen Guest

    I was just told always to shut my computer down, not use hibernate. If I was
    able to be connected quicker to internet, I would not have problem shutting
    down. Please let me know. Thank you. I am novice and do appreciate your
    help. I keep asking this site does not allow me to ask questions but
    obviously I can reply.
    Maureen, Oct 5, 2007
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