Energy Saver vs. Backlight

Small but confusing issue with my first iPod purchase (nano 4G).

Page 19 of the User Guide tells me that... "+Energy Saver can extend the time between battery charges by turning off the iPod nano screen when you aren’t using the controls+".

Page 12 describes a different setting: "+You can set the backlight to turn on and illuminate the screen for a certain amount of time when you press a button or use the Click Wheel+".

Could someone tell me how these settings differ and how they relate to each other?

I have not yet worked out what the "Energy Saver" setting does, as the screen goes off according to the "Backlight" setting, regardless of whether Energy Saver is on or off.

I thought at first that perhaps the subtle difference was that the "Backlight" setting was not turning the screen OFF, but just its light (which is what the setting name implies). When the timeout kicks in the screen APPEARS to turn off, however these ageing eyes now realize that it remains (barely) visible, if one stares hard enough and at the right angle. However a short while later, it turns off completely.

Aha! thought I. It must be the backlight setting that is "dimming the lights", and later the "Energy Saver" that is bringing on total darkness! I thought I had my answer, until I realized that the above two-step behavior occurs in exactly the same way when the Energy Saver is OFF!

That leaves me in the dark (pun intended), and raises a separate question: Is there a difference between the state of the nano when it is turned OFF by the user (by holding down Play/Pause), and when it goes into "total darkness" (after the Backlight times out)?

If there is NO difference (I.e. if the second blackout stage is actually turning the nano off), then why does the documentation tell us that these are SCREEN settings? But if there IS a difference (E.g. if the auto-darkness is leaving the nano ON, but with the screen off), is it not making it too easy for users to unintentionally leave the device on for extended periods of time?

I can't yet work out if all this is a flaw in the product's design, in its documentation, or in this user's comprehension.

Wait - it gets worse. At this point I browsed the discussion group before posting. New questions now overlay the previous ones. "Off" vs. "Sleep"? What does "turning off the nano" really mean? Does the "Hold" switch play any role in all of this?

I bought this as a present for a (much) younger family member, fully expecting that I would have to learn its proper usage so that I could teach her "the basics". But after hours of downloading and reading manuals, surfing the site, experimenting, and wasting half an hour trying to get an answer to just the first question above from Apple Support (the guy just did not know, and became even more confused when I tried to go further), I am having trouble grasping those "basics".

I have read here many reports about nano 4G battery life concerns. The iPod owner-to-be does not have her own computer (for charging, until we purchase a charger that we did not know would be needed as a separate purchase, and that I have only now discovered must be specifically nano 4G compatible as most existing ones won't work). So knowing the best way to conserve battery (while retaining reasonable function) is important. I'm hoping for a simple explanation that ties all the loose bits together.

.

Various PCs, Windows Vista

Posted on Oct 22, 2008 10:55 AM

Reply
5 replies

Nov 1, 2008 8:44 AM in response to ManfromOz

Please someone tell me that this isn't like the old Catch-22 about having to have credit before you can get credit. I hope the unwritten forum rules don't include the requirement to have iPod knowledge before one can obtain it.

As mentioned in a separate post, some of us uninitiated iPodians are struggling with basics that do not appear important enough for Apple to clarify in documentation. (Nor seem worthy enough for support staff to bother with. I've tried.)

But "hope springs eternal" - maybe some kind person out there will answer my questions?

Nov 3, 2008 1:14 AM in response to ManfromOz

+"Could someone tell me how these settings differ and how they relate to each other?+

+I have not yet worked out what the "Energy Saver" setting does, as the screen goes off according to the "Backlight" setting, regardless of whether Energy Saver is on or off.+"

1. If Energy Saver is turned off: Basically the backlight setting is the time that the screen takes to turn off, so if it is set to 10 seconds then the backlight will take 10 seconds to turn off, no matter what.

2. If Energy Saver is turned on: While navigating a menu or using the buttons then the screen will take as long as the Backlight setting is set to, like previously, but on the music screen when music playing the screen will quickly turn off, therefore saving a little more battery as undoubtable the screen uses the most energy on your ipod. The difference im sure is minimal, but im sure in the long run itll give your ipod a little more juice.

+"I thought at first that perhaps the subtle difference was that the "Backlight" setting was not turning the screen OFF, but just its light (which is what the setting name implies). When the timeout kicks in the screen APPEARS to turn off, however these ageing eyes now realize that it remains (barely) visible, if one stares hard enough and at the right angle. However a short while later, it turns off completely."+

The actually screen uses very little energy, its the general lights that cause more energy to be consumed. This is common on many MP3 players and many electronics which use an LCD screen, dont worry about it.

+"That leaves me in the dark (pun intended), and raises a separate question: Is there a difference between the state of the nano when it is turned OFF by the user (by holding down Play/Pause), and when it goes into "total darkness" (after the Backlight times out)?+

+If there is NO difference (I.e. if the second blackout stage is actually turning the nano off), then why does the documentation tell us that these are SCREEN settings? But if there IS a difference (E.g. if the auto-darkness is leaving the nano ON, but with the screen off), is it not making it too easy for users to unintentionally leave the device on for extended periods of time?"+

Slightly confused here, do you mean when you are not playing music? Well, if you hold play then the ipod will go into standby mode which uses less power as it is put into a low power state, so yes, there is a difference. I would not worry if you leave your ipod on by accident because you think it is off because the screen is black, as the ipod will automatically go into standby mode when it is not used for a certain amount of time, keeping battery use to a minimal. So no, unless you are playing music continuously it is not easy for users to unintentionally leave on the device for extended periods of time.

+"Wait - it gets worse. At this point I browsed the discussion group before posting. New questions now overlay the previous ones. "Off" vs. "Sleep"? What does "turning off the nano" really mean? Does the "Hold" switch play any role in all of this?"+

When you hold down the play/pause button then it puts the ipod into standby mode, effectively putting it into a low power state. This is useful as it allows the user to quickly turn on the ipod on without having to boot it up fully, however it results in battery power (a very very small amount albeit) being used when the ipod is not in use. If you fully turn it off then no power is effectively being used, but it takes longer to boot the device and more power generally has to be used to turn it on.

+"I have read here many reports about nano 4G battery life concerns. The iPod owner-to-be does not have her own computer (for charging, until we purchase a charger that we did not know would be needed as a separate purchase, and that I have only now discovered must be specifically nano 4G compatible as most existing ones won't work). So knowing the best way to conserve battery (while retaining reasonable function) is important. I'm hoping for a simple explanation that ties all the loose bits together."+

I think that out of the box he ipod nano is meant to be as energy efficient as possible. I hope that my explanations helped in some way :P

Nov 4, 2008 12:10 AM in response to ManfromOz

When music is playing, turning on energy saver allows for the screen to completely turn off after 1 full minute of the screen displaying the now playing display. With energy saver turned off, the screen will only dim considerably but will continue to stay on. Backlight is the amount of light the screen shines while you touch the click-wheel; the backlight dims when the click-wheel is untouched after a selected amount of seconds (which can be changed in the Settings menu).

Personally, having the energy saver on is extremely advantageous. I once owned an 1st generation iPod nano and its battery life grew lame after 1.5 years of use, not only because I frequently listened to it but because the screen never fully turned off. I have had an iPod Touch for almost a year now and use it even more frequently than my 1st gen iPod nano and its battery life is impeccable because of the ability to turn off the screen while the iTouch is still in use. With this same capability with the iPod nano, the battery life of the 4th gen nano should last considerably longer than its predecessors.

Change your backlight setting to 10 seconds (that's really all you need) and keep the energy saver option on. That way you can extend your iPod's battery life and be a happy consumer. :]

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Energy Saver vs. Backlight

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