Should I shut down my OS X 10.9.4 Mac each night, yes or no? Explain why.

Should I shut down my OS X 10.9.4 Mac each night, yes or no? Explain.

I was just curious if there is any harm in shutting it down each night.
That's the difficult part. You'll get answers both ways. You could call Apple's tech support and the person you have on the phone will tell you to leave it on. Call back, and someone else will tell you to turn it off.
Back in the days of much flakier hardware (I mean, way back), our first computer was an IBM XT clone running DOS 3.1. We always turned it off when not in use. Never had a problem with it. Nor have I ever had an issue turning our various computers off over the past 30 years. I just don't see why I'd want to leave it on, uselessly using electricity sitting idle.
If I have to walk away from it for a bit, I'll leave it on. But if I know it's going to be a couple of hours or more before I get back to the computer, off it goes. Whether it's first thing in the morning, or turning it on again midday, waiting a lousy minute for it to come to the desktop from a cold start rather than more quickly coming out of sleep mode isn't that big of a deal.

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    Hi,
    The following article may help you to make decision:
       http://lifehacker.com/5940176/is-it-bad-to-shutdown-my-computer-regularly-or-leave-it-on-all-the-tim...
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    **Click the KUDOS thumb up on the left to say 'Thanks'**
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    http://support.apple.com/kb/HT1446
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    Hi,
    People choices:
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    **Click the KUDOS thumb up on the left to say 'Thanks'**
    Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

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    Just purchase a Macbook Pro, should I shut it down every night?

    leroydouglas wrote:
    Never heard that advice before. The kb certainly does not say that. 
    Big difference from your statement compare  ""Apple does not recommend leaving your portable plugged in all the time." 
    I think using the battery regularly is a better interpretation.
    I would submit  that is the way most people use their Portables, close the lid.
    You absolutely misunderstood I referred to BOTH  "on power AND in sleep mode"
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    Using the battery regularly can mean anything as a generalization.
    That advice on parasitic charging is correct.   Which referres to BOTH in sleep AND on power...   not however to merely "in sleep mode"
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    I did not say the KB article said that,    what it says:
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    So, you misunderstood.
    Apples recommendation refers to micro-cycling the battery and to parasitic charging in the above quote, that it doesnt elaborate on the specifics of same
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    The implication from same is exactly this
    *If you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
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                        This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
    Contrary to popular myths about notebook batteries, there is protection circuitry in your Macbook and therefore you cannot ‘overcharge’ your notebook when plugged in and already fully charged.
    However if you do not plan on using your notebook for several hours, turn it off (plugged in or otherwise), since you do not want your Macbook ‘both always plugged in and in sleep mode’.
    A lot of battery experts call the use of Lithium-Ion cells the "80% Rule", meaning use 80% of the full charge or so, then recharge them for longer overall life. The only quantified damage done in the use of Lithium Ion batteries are instances where the internal notebook battery is “often drained very low”, this is bad general use of your notebook battery.
    A person who has, for example, 300 charge cycles on their battery and is recharging at say 40% remaining of a 100% charge has a better battery condition state than, say, another person who has 300 charge cycles on their battery and is recharging at say 10-15% remaining on a 100% charge. DoD (depth of discharge) is much more important on the wear and tear on your Macbook’s battery than the count of charge cycles. There is no set “mile” or wear from a charge cycle in specific. Frequent high depth of discharge rates (draining the battery very low) on a Lithium battery will hasten the lowering of maximum battery capacity.
    All batteries in any device are a consumable meant to be replaced eventually after much time, even under perfect use conditions.
    If the massive amount of data that exists on lithium batteries were to be condensed into a simplex, helpful, and memorable bit of information it would be:
    1. While realistically a bit impractical during normal everyday use, a lithium battery's longevity and its chemistry's health is most happy swinging back and forth between 20% and 85% charge roughly.
    2. Do not purposefully drain your battery very low (10% and less), and do not keep them charged often or always high (100%).
    3. Lithium batteries do not like the following:
    A: Deep discharges, as meaning roughly 10% or less on a frequent basis.
    B: Rapid discharges as referring to energy intensive gaming on battery on a frequent basis (in which case while gaming, if possible, do same on power rather than battery). This is a minor consideration.
    C: Constant inflation, as meaning always or most often on charge, and certainly not both in sleep mode and on charge always or often.
    From Apple on batteries:
    http://www.apple.com/batteries/notebooks.html
    http://support.apple.com/kb/HT1446
    Bad discharging or battery use conditions:
    Heat (due to environmental conditions or due to rapid discharges from heavy use = gaming / video editing)
    Rapid discharging of the battery frequently causes chemical changes over time in the battery leading to decreased capacity and resistance of current flow.
    The very worst use of your battery is often draining the battery very low, and worse still letting it remain in such a state.
    *Most long-term rapid damage to the battery occurs from discharging it with high loading (gaming) conditions but paramount is avoiding deep and frequent low DOD (depths of discharge) in use.
    Undesirable charging or charged conditions:
    High perpetual SOC (state of charge), where the battery is always or very often connected to charge
    Parasitic loading where the battery is both usually on and charging or worse both always charging and in sleep mode, since this induces mini-cycling of the battery.
    Bad general handling conditions:
    Temperature use conditions when either too hot (95F and above) or too cold (50F and below)
    Storing your battery away with a low charge (40% and less) long-term.
    Considerations:
    Your battery is subject to chemical aging even if not in use. A Lithium battery is aging as soon as its made, regardless.
    In a perfect (although impractical) situation, your lithium battery is best idealized swinging back and forth between 20 and 85% SOC (state of charge) roughly.
    Further still how you discharge the battery is far more important than how it is either charged or stored short term.
    Ultimately counting charge cycles is of little to no importance.  Abuse in discharging (foremost), charging, and storing the battery and how it affects battery chemistry is important and not the ‘odometer’ reading, or cycle counts on the battery. 
    Everything boils down to battery chemistry long term, and not an arbitrary number, or cycle count.
    Keep your macbook plugged in when near a socket since in the near end of long-term life, this is beneficial to the battery.

  • Stuck with three songs to go...should I shut down?

    OK After about 2 days Itunes match I made it to the very end of step 3
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  • Using my mac everyday for an hour or so, should i shut down or sleep?

    Just wondering if it would be better to shut down my computer or make it sleep because i use it everyday for about an hour(web browsing, musuc, email)?... and i want to get the longest battery life possible... thanks! i have the newest 13 inch mac book pro

    If you use it for, say, 1-2 hours and you were to leave it sleeping the rest of the day but unplugged, the battery would eventually drain. 22-23 hours of sleep will cause the battery to drain around 10-15% of its capacity and one hour of charge will not be able to replentish that, so eventually the battery will deplete. Plus the short and incomplete charge cycle would be murder on the battery.
    On the other hand, leaving it perpetually plugged in kind of defeats the purpose of a portable, plus is not recommended by Apple for battery longevity.
    So, turn it off and resign yourself to having to wait a few more seconds for startup.

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