Average Battery Consumption and Maintenance

I heard that smartphones generally use up alot of power. I am trying to figure out if charging the phone once a day is normal.
My wife and I purchased the Droid 2 at the same time. We only make a few calls at a time and they are very short. Sometimes we use the browser to check news and e-mail. At the end of the day I have about 60% charge left on my phone while my wife's phone has only 20%. Our usage is generally about the same. We really are not constantly using it and most of the time it is in standby / sleep mode.
1. Is it possible that she has a "faulty" battery?
2. The standard battery that comes with the Droid 2 is rated at 1420 mAh. Would getting the extended battery (1860 mAh) make a huge difference in terms of how long it will take before the next charge? Would the extended battery take longer to recharge?
3. What is the best way to extend the life of the battery. Do I always need to drain the battery down to empty before recharging or occasionally or not necessary?

People moving from feature phones to smart phones generally experience a more frequent need to charge and generally more battery usage. Still, so far of 5 different model of smartphone I have used (3 different windows mobile devices by various manufacturers, a BB and a Palm) I am finding the DROID 2 to have the best battery life - I have the normal battery in the Droid, had extended batteries in the last 3 smart phones. I have taken some time to adjust settings in line with recommendations I've found on the web and my experience and needs. Search battery and Android for some of the web articles.
Specific things I have done that help:
Reducing the amount of time the screen is on and how much power it draws is the biggest thing you can do. If you look at the graph in the battery settings area for what is drawing the most power, display is usually 50% of the total draw, Setting the display time-out to the lowest value (30 seconds) and taking the display off auto-brightness and setting it to somewhere in the lower 1/3 of the range is a big help. The only downside is in bright environments (bright sunshine, not normal indoor lighting) it is harder to see, but it is easy enough to set back to auto if you are in these environments.
Turn off GPS and wifi when not in use - there are some nice widgets you can put on one of your screens to make this easy. Wifi when the phone stays in the same environment doesn't seem like a big deal - I usually turn on wi-fi in my home and leave it running when I am there - but keeping it on when you are moving (car, whatever) just wastes power. Similar for GPS if you aren't using it.
Decrease frequency of syncing - mine is set to 60 minutes.
Look at the battery settings and make sure its usage profile matches what you need.
Turn off the display whenever you don't really need it. For example, I have used the navigation app a few times, but most recently I turn the display off while it it running - I find the voice prompts 90% of the time are enough and I don;t need the screen on. Same with Pandora when I play music or other apps where the screen component is optional.

Similar Messages

Problem in iOS 7, high battery consumption and excessive consumption of data exchange accounts

yesterday I upgrade to iOS 7, then I started to feel warm on the iphone and review data consumed and increasingly gained more, check detailed consumption and note that consumption was generated in "Exchange accounts" How I can fix this?

Try removing and re adding the exchange accounts.
If that doesnt resolve it then reset the phone and see hwo that goes.
You may even need to restore the iPhone from a backup in iTunes.

Average power consumption comparision: i7 and t500

Hi,
What is the average power consumption (non-peak) of a t500 system,
doing web-surfing and light tasks ?
I have read that the i7 mobiles (non-lenovo) are at 52W avg, and 75W peak,
and this will help me decide whether to buy the t500 or wait for the lenovo
i7 based laptops
thanks!

P8400 / P8600 etc core2duo mobile (2,2-2,4ghz) take 25W. I think in office use my T400 uses about 15W, not sure. It depends on load. I find quad core laptop CPUs quite useless for the average user.I think the i7 mobiles have a 45W specification, which is quite higher than the modern dual cores. I prefer longer battery life to having four cores i will most likely never use in daily work. This changes, of course, if you use your laptop as Desktop replacement or primarily for CPU intensive tasks, such as video en/decoding.
Thinkpad T400 (Windows 7 Ultimate x64)

Can't use WIFI and the battery consumption goes much faster

I can't use WIFI after my iphone4s was updated to ios6.0 and the battery consumption goes much faster, how to solve ?

This seems to be a problem relatet to the current versions of the app. After uninstalling Spotify I installed an older version, 2.8.0.1081, which worked perfectly with wifi. No newer versions seem to work so I hope there will be a fix soon. I've tried changing the UPnP as well as NAT filtering settings, but the newer versions of the app still wont work.

Hello I want to say that apple iphone 5 even has problems with battery consumption. Charge my phone in the morning and sometimes I do not get to the full day. If they could fix this problem I would appreciate. I hope answers.

Hello I want to say that apple iphone 5 even has problems with battery consumption. Charge my phone in the morning and sometimes I do not get to the full day. If they could fix this problem I would appreciate. I hope answers

Hello!
I recently just downloaded the 'Waze' app as a backup for my Garmin. I've read a few reviews that seem to rant and rave about how good the GPS app is. It is community driven and maps are constantly being updated by users. Plus it has a few other fun stuff in it (something similar to Gasbuddy where you can owe prices on the map). But like the person above me said, there is lots of useful free GPS apps in the App Store.
Oh and I may be wrong but I remember reading an article about Google being slower about updating its maps system--ie no turn by turn voice, which many people have had complaints about.
Happy Searching!
Ps - if you switch I wouldn't go to Blackberry.

Thinkwatt: record power consumption and visualize it with gnuplot

https://github.com/mikar/thinkwatt wrote:
Thinkwatt is a bash script for use with thinkpad laptops. However, as of v0.2, it works with all kinds of laptops as long as they've got a battery attached.
Thinkwatt can
* record your power consumption,
* calculate an average of that consumption
* and visualize that data in a 2D gnuplot graphic.
options:
-r, --record record power consumption and optionally create a graph from the gathered data
-p, --plot create a plot image from a specified data file
-a, --average calculate the average power consumption from a specified data file
-q, --quiet makes thinkwatt less chatty
-o, --output the output file. can be prepended by a path.
-h, --help show this help text
examples:
thinkwatt -r (will record to a temp file until cancelled)
thinkwatt -r 300 -o /foo/bar/consumption.dat (will record for 5 minutes to the specified file)
thinkwatt -p /foo/bar/consumption.dat (will create a graph from the specified file)
Thinkwatt works with all laptops, not just Thinkpads.
If you're running thinkwatt on a Thinkpad it is still recommended to use tp_smapi as it provides more accurate results than the generic acpi.
This is an example of what the graph can look like:
It's mainly useful for retracing power consumption during certain situations (e.g. measuring the influence of certain hardware or software (kernel comes to mind), or simply reliably gather typical power consumption for certain activity profiles like surfing, working, watching movies etc.)
I guess I'll add to the script when and if time and my bash skills allow it. Suggestions for improvement are always welcome.
You can get thinkwatt from my git repository here or the AUR here.
Regards,
demian
Last edited by demian (2011-05-28 21:10:30)

akurei@joel: ~ $ LANG=C thinkwatt -r 60 /home/akurei/test
recording power consumption for the next 60 seconds
/usr/bin/thinkwatt: line 100: /tmp/thinkwatt/28606.dat: No such file or directory
mv: cannot stat `/tmp/thinkwatt/28606.dat': No such file or directory
error: file not found.
average consumption during the last 60 seconds was W
do you want to create a graphic now, too? y/n y
error: file not found.
akurei@joel: ~ $ LANG=C thinkwatt -r 60
recording power consumption for the next 60 seconds
/usr/bin/thinkwatt: line 100: /tmp/thinkwatt/29019.dat: No such file or directory
error: file not found.
average consumption during the last 60 seconds was W
do you want to create a graphic now, too? y/n y
error: file not found.
akurei@joel: ~ $ yaourt -Qi gnuplot
Name : gnuplot
Version : 4.4.3-1
URL : http://www.gnuplot.info
Licenses : custom
Groups : None
Provides : None
Depends On : readline gd wxgtk cairo libjpeg lua
Optional Deps : None
Required By : None
Conflicts With : None
Replaces : None
Installed Size : 3016.00 K
Packager : Ronald van Haren <[email protected]>
Architecture : x86_64
Build Date : Fri May 6 10:55:29 2011
Install Date : Mon May 16 17:04:26 2011
Install Reason : Explicitly installed
Install Script : Yes
Description : Plotting package which outputs to X11, PostScript, PNG, GIF, and others
akurei@joel: ~ $ yaourt -Qi tp_smapi
Name : tp_smapi
Version : 0.40-5
URL : http://tpctl.sourceforge.net/
Licenses : GPL
Groups : None
Provides : None
Depends On : mkinitcpio>=0.6.8 module-init-tools>=3.12-2
Optional Deps : None
Required By : None
Conflicts With : None
Replaces : None
Installed Size : 220.00 K
Packager : Michael Duell <[email protected]>
Architecture : x86_64
Build Date : Mon May 16 17:03:41 2011
Install Date : Mon May 16 17:03:50 2011
Install Reason : Explicitly installed
Install Script : Yes
Description : Modules for ThinkPad's SMAPI functionality
akurei@joel: ~ $ yaourt -Qi gawk
Name : gawk
Version : 3.1.8-2
URL : http://www.gnu.org/directory/GNU/gawk.html
Licenses : GPL
Groups : base
Provides : awk
Depends On : sh glibc
Optional Deps : None
Required By : autoconf syslog-ng sysvinit thinkwatt
Conflicts With : None
Replaces : None
Installed Size : 2224.00 K
Packager : St
Architecture : x86_64
Build Date : Sat Nov 20 04:00:45 2010
Install Date : Thu May 5 19:05:55 2011
Install Reason : Explicitly installed
Install Script : Yes
Description : Gnu version of awk
akurei@joel: ~ $ yaourt -Qi sed
Name : sed
Version : 4.2.1-3
URL : http://www.gnu.org/software/sed
Licenses : GPL3
Groups : base
Provides : None
Depends On : acl sh
Optional Deps : None
Required By : ca-certificates fakeroot grub mkinitcpio packer thinkwatt
Conflicts With : None
Replaces : None
Installed Size : 804.00 K
Packager : St
Architecture : x86_64
Build Date : Fri Nov 19 22:35:32 2010
Install Date : Thu May 5 19:05:55 2011
Install Reason : Explicitly installed
Install Script : Yes
Description : GNU stream editor
akurei@joel: ~ $ lsmod|grep tp_smapi
tp_smapi 20043 0
thinkpad_ec 4085 2 hdaps,tp_smapi
Last edited by akurei (2011-05-16 15:36:40)

Mac security and maintenance advice needed.

can someone please advice me how to keep my mac secured and well maintained. i mean the macbook hardware as well as software.
any antispyware or antivirus i should get for mac? would u recommend one? and which one? also suggest me some free alternatives.
on pcs putting realtime scanners would slow down the system. i hope thats not the case in mac.
also, any maintenance software like a defragmenter? i have been told macs dont need a defrag program. recently a whole lot of permissions went bad when i did a 'verify permissions' check.
also, can someone tell me how often one should calibrate the battery?

Kappy's Personal Suggestions for OS X Maintenance
For disk repairs use Disk Utility. For situations DU cannot handle the best third-party utilities are: Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible. TechTool Pro provides additional repair options including file repair and recovery, system diagnostics, and disk defragmentation. TechTool Pro 4.5.1 or higher are Intel Mac compatible; Drive Genius is similar to TechTool Pro in terms of the various repair services provided. Versions 1.5.1 or later are Intel Mac compatible.
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts had been significantly reduced in Tiger and Leopard.
OS X automatically defrags files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive. As for virus protection there are few if any such animals affecting OS X. You can protect the computer easily using the freeware Open Source virus protection software ClamXAV. Personally I would avoid most commercial anti-virus software because of their potential for causing problems.
I would also recommend downloading the shareware utility TinkerTool System that you can use for periodic maintenance such as removing old logfiles and archives, clearing caches, etc.
For emergency repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the commandline. Note that presently AppleJack is not compatible with Leopard.
When you install any new system software or updates be sure to repair the hard drive and permissions beforehand. I also recommend booting into safe mode before doing system software updates.
Get an external Firewire drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Retrospect Desktop (Commercial - not yet universal binary)
2. Synchronize! Pro X (Commercial)
3. Synk (Backup, Standard, or Pro)
4. Deja Vu (Shareware)
5. Carbon Copy Cloner (Donationware)
6. SuperDuper! (Commercial)
7. Intego Personal Backup (Commercial)
8. Data Backup (Commercial)
The following utilities can also be used for backup, but cannot create bootable clones:
1. Backup (requires a .Mac account with Apple both to get the software and to use it.)
2. Toast
3. Impression
4. arRSync
Apple's Backup is a full backup tool capable of also backing up across multiple media such as CD/DVD. However, it cannot create bootable backups. It is primarily an "archiving" utility as are the other two.
Impression and Toast are disk image based backups, only. Particularly useful if you need to backup to CD/DVD across multiple media.
Visit The XLab FAQs and read the FAQs on maintenance, optimization, virus protection, and backup and restore.
Additional suggestions will be found in Mac Maintenance Quick Assist.
Referenced software can be found at www.versiontracker.com and www.macupdate.com.
Do You Need Anti-Virus Protection for Your Mac?
According to Rich Mogull's article, Should Mac Users Run Antivirus Software?,
"The reality is that today the Mac platform is relatively safe. There are hundreds of thousands of viruses and other malicious software programs floating around for Windows, but less than 200 are known to target the Mac, and many of those are aimed at versions of the Mac OS prior to Mac OS X (and thus have no effect on a modern Mac).
It's not that Mac OS X is inherently more secure against viruses than current versions of Windows (although it was clearly more secure than Windows prior to XP SP2); the numerous vulnerabilities reported and patched in recent years are just as exploitable as their Windows equivalents. But most security experts agree that malicious software these days is driven by financial incentives, and it's far more profitable to target the most dominant platform."
Mr. Mogull is a computer security expert. I recommend reading the entire article as it is quite informative.
For additional information on viruses, trojans, and spyware visit The XLab FAQs and read the FAQs on viruses and spyware.
About Batteries in Modern Apple Laptops
Apple - Batteries - Notebooks
Extending the Life of Your Laptop Battery
Apple - Batteries
Determining Battery Cycle Count
Calibrating your computer's battery for best performance
Battery University
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger and Leopard.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.0 for Tiger, and 4.1 for Leopard) and/or TechTool Pro (4.6.1 for Leopard) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
would keeping the charger plugged in extend battery life?
It will neither hurt nor improve battery life. The life of the battery is determined by the number of full charge cycles - about 500 is the average life. If you use the computer mostly in a location with access to an AC outlet then you should use the AC adapter rather than run on the battery.

Battery time and enhancement features

Smartphone’s are known for consuming a lot of battery power and depending on your configuration your phone might last longer or shorter than other phones. This topic contains some advice and info about what you can do to increase your battery time.
When using your new Android phone it will take approximately up to a week or so before the phone settles in its battery usage and power management, depending on applications installed and the amount of content in your phone. It’s worth mentioning that this evaluation that the phone runs in the background at first period of use will happen again after master reset or reinstalling/repairing the phone software. So if you have just reset or reinstalled your phone, this power management evaluation process will run again. So it might at first seem like your phone is consuming more battery power than before the reset, but its normal.
If you have been using your phone for a couple of week and still think that the battery time is a bit too low, here’s some advice that will increase the battery time.
First of all make sure that your phone is running on the latest version of the firmware. You can use PC Companion to check for software updates for your phone.
http://www.sonymobile.com/gb/tools/pc-companion/
Or Bridge for Mac if you’re a Mac user:
http://www.sonymobile.com/gb/tools/bridge-for-mac/
You can also check battery consumption via the menu; Settings > About phone > Battery use, or Settings > Battery, or Settings > Power management > Battery.
Things that can be disabled or reduced when you don't need them:
Dim the screen
Disable live wallpaper if used
Turn off 3G (WCDMA), 4G (LTE).
Turn off mobile data traffic
Turn off Bluetooth®
Turn off Wi-Fi®
Turn off GPS
By doing this you will increase your battery time. But if you're still experiencing a low battery time you can try the following as proposed by many users on the forum. (Only applies for phones using removable battery)
When phone reaches 50% in battery level turn it off and pick out the battery for a few minutes. Put it back and connect the charger, now charge the phone turned off for about 5 hours or overnight. Start the phone as normal and check if the battery life time has improved.
You can also let the phone drain the battery completely until it turns itself on and won’t start again.
At this point connect the charger but do not turn on the phone, leave it charging while turned off until the battery indicator on the screen is completely filled.
Also make sure that you’re using a Sony original charger.
Battery enhancement features
Extended standby mode
Use the extended standby mode to make the battery last longer. Your Wi-Fi® connection, data traffic and unused applications are then paused when the phone is in standby. You can still receive phone calls, text and multimedia messages. Once the phone is used again, all paused functions are resumed.
You can enable/disable Extended standby mode via Settings > Power management. (Depending on model)
STAMINA mode
It has already been mentioned a couple of times that Smartphone’s use a lot of power, even when you’re not actively using them. All those app’s that you have on your phone may still be running in the background, draining your battery. STAMINA mode is a further development of Extended standby mode and saves wasted battery drain by recognizing when your display is off and turning off functions you don’t need, while keeping the notifications you want. As soon as you wake up your Android Smartphone, everything is up and running again.
Get only the important notices.
With Battery STAMINA mode, Wi-Fi® and data traffic are disabled during standby, but you still receive incoming calls, texts, and alarms. And since everyone has different needs, you can easily customize which app's you want to receive push notifications from even in standby mode. Facebook notifications on or off? It’s up to you.
The STAMINA mode will constantly re-evaluate your usage and update the expected standby time accordingly.
This standby time will completely vary depending on your own personal usage. You may see that when you first start using your handset, the Standby time will be higher than what is expected after you have used the handset for a few days. This is due to STAMINA mode having no previous usage history to estimate from.
If you have a very high usage level, you may only see a slight improvement between having STAMINA enabled and disabled. STAMINA mode is more effective the more often the display is turned off as this is when the power saving features kick in. If the display is rarely turned off, you may not see much improvement in the battery performance.
You can enable/disable STAMINA standby mode via Settings > Power management. (Depending on model)
- Community Manager Sony Xperia Support Forum
If you're new to our forums make sure that you have read our Discussion guidelines.
If you want to get in touch with the local support team for your country please visit our contact page.

To turn sound off (and on) try holding the lowest right button (#) for a bit longer time. Works with most phones.

Satellite Pro L40 - What is a average battery runtime?

Hi there,
I just recently received my Satellite Pro L40 and am just wondering what the average battery runtime is? Once fully charged it only seems to be able to handle 1hour max. Is this normal?
The laptop I had before was the same, but my friends laptop, which is more than a year older than mine, runs for more than 3 hours on a fully charged battery.
Is there a fault??
Thanks

Hi
It is not easy to answer this question because the battery working time depends from the notebook usage. You should know that you will be able to run the notebook much longer on battery power using only some common applications like Word or Internet Explorer.
Playing games, watching DVDs or burning the CD/DVD waste more battery power because the performance of the single devices is much higher!!!!
Fact is that the Pro L40 notebook was equipped with high-tech parts and devices. The notebook supports a strong Intel Pentium Dual-Core CPU, huge HDD, nice GPU and and and
Furthermore you should know that the preinstalled Vista OS eats many resources and waste more battery power as the Win XP!!!
All this factors has a influence on the battery working time.
Last but not least you should know that there are different batteries on the market.
If you want to increase the battery performance buy a stronger battery!!!
regads

Battery consumption in power supply operation

Hello there.
i have a Problem with my MacBook Pro 15 i5 using Windows 7 with Bootcamp:
If i start my Mac with Windows 7 ( Power Supply and FULL Battery ) and start play a game ( for 2 or 3 hours ) the Battery is almost empty (Windows Info: "Power Supply Operation - Battery charing - 15% left") after quitting this game. So my Macbook has a Battery consumption during power supply operation. Why my Macbook is using the Battery instead of Power Supply ?
If i use Mac OS i dont have this problem. Just with Windows 7.
Why the Battery is almost empty after playing a game although i used Power Supply ?
Any ideas ?
Thanks

no ideas ? i really need help !

HT1222 Has anyone else noticed much greater battery consumption since iOS 5.1.1 update for iPhone?

Since iOS 5.1.1 update has anyone else noticed a much greater battery consumption on all fronts? My phone used to rock steady all day and know is around 47% 12 noon to 1 pm with the same amount of usage.

Heres a support question... how the **** do I fix the dramatic battery drain problem that came about after installing 5.1.1? Suggestions for fixing problems on iTunes did not work.

Bluetooth Mighty Mouse battery consumption

I have a Bluetooth Mighty Mouse and have had it for 3 months (Christmas present). Last week, I noticed one bar had disappeared in the mouse battery life window in System Prefs - "wow" I thought "only lost 20% charge in just under 3 months".
However, yesterday, I got a "Low Battery" warning and noticed that only two bars were remaining. A couple of hours later I got a "Critical battery level" warning and only one bar remaining.
I don't use my mouse all that much - probably at most 6 hours per day (in short-ish intervals, turning it off in between) and I can't remember accidentally leaving it on. I'm using it with the two original AA batteries it shipped with.
Is this normal battery consumption? I find it strange that from "Low battery" to "critical battery" would be a couple of hours and that it would suddenly lose almost 50% of its charge in a week.
Do these mice eat AA batteries? Is it a good idea to get some rechargeables to use instead?
Cheers for the help

Hello thomasp:
In answer to your question, the battery life of a wireless mouse is mostly dependent on usage. When not in use, the wireless devices go to a very low power mode. IMHO, it is a waste of time to turn mice/KBs off. I would postulate that your experience is about normal.
I use rechargeable batteries (2500 mAh) in all my wireless devices. They do not last quite as long as the Lithium batteries - they have a lower voltage. However, I use an Energizer recharger that recharges batteries in 15 minutes - very little waiting time. In addition to being less expensive in the long run, rechargeable batteries are environmentally friendly! I bought a bunch of them on eBay. By the by, the rechargeables lose some charge every day - even if they are not in use.
Barry

Blackberry Torch 9810 battery life and build quality

I'm going to be getting a new Blackberry soon and I wanted to know what the 9810 was like. Can someone please tell me how it compares the the other Blackberry 7 devices, especially the battery life and the build quality of the handset?? I'd also like to know what the call quality of the handset is like, through the earpiece and the loudspeaker.
Thanks to anyone who replies.

Matt_G wrote:
Thanks for replying,
Were you a heavy user of your 9810 (i.e. leaving the phone signed into Facebook, twitter, etc... and heavy use of BBM)?
How long did the battery last on average?
And how strong and sturdy was the slider mechanism??
I use twitter all day long, facebook set to evey 3 hours, and have 11 BBM groups.
Usage is tough to measure as there are many factors. I can go a whole day or mabye need to change once during the day when too active on it.
my 9800 not 9810, lasted me very well and the slider was still like new. it is built well. I sold it to a friend so i could have a 9810.
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Power consumption and on/off status?

Greetings!
One: I am trying to find out what the power consumption is for the iPod Hi-Fi in watts.
Two: Is the Hi-Fi drawing power if the Hi-Fi is plugged into the wall but the iPod is not in the dock?
These questions are not covered in the literature nor on the website. When I called the Helpline, six different customer service and technical support staffers didn't know either answer. The Apple Store employees in San Diego also didn't know.
A suggestions for the next generation of Hi-Fi: Make it so the unit does not draw power unless an iPod is in the dock or an auxiliary input plug is not connected.
This would allow my Hi-Fi to be placed in a bookcase in a semi-permanent installation not requiring the need to be unplugged everytime the iPod was not in use.
Thanks,
Ralph
iPod 30GB & iPod Hi-Fi

One: I am trying to find out what the power
consumption is for the iPod Hi-Fi in watts.
Are you interested in the sound output, as specified by many loudspeaker makers? Or did you only want to know the drain from the mains supply, for cost or environmental reasons?
If the latter, finding someone with a watt meter would be the easiest way. Apple do not specify the power consumption. I would guess they didn't want to get into a competition about whose loudspeaker has the most music power (since everyone lies).
If I had to guess, I would think around 25 watts peak when running on batteries, around 80 watts peak when running on AC. That is a very rough guess based on how long batteries last (5 hours), the sound output difference between battery (102dB) and AC (108dB), and the likely efficiency of their amplifier (80%).
Testing with a watt meter would be a much better way to come up with a figure. I gather they are cheap and readily available in the USA (scarce and expensive here).
Two: Is the Hi-Fi drawing power if the Hi-Fi is
plugged into the wall but the iPod is not in the
dock?
Yes. Any device with a soft power switch draws power when not physically unplugged. However I would imagine in that state consumption would be less than one watt. Apple would almost certainly have used the same methods they use to reduce power on sleeping computers (when there is no input signal for a while).

Keeping your battery lengthy and healthy

This might seem repetitive but what are the absolute best ways to extend life:
I have it set to better energy savings no bluetooth and low display backlight (half way)
Am I missing something out?
2. I've read the battery callibration sheet but nothing is specified about what power settings should be used ? Does it matter? It could take a while to drain fully therefore I would Crank up the brightness
Thanks in advance for your help
Ben

Set your brightness as low as you can stand it - the difference between 1 bar of brightness and 8 bars will have a significant impact on your battery. I don’t know if he is correct, but the head tech where I work told me that the ethernet port can be turned off in the Network Control Panel to reduce power consumption and that the sound circuit can be turned off by turning sound down all the way which also reduces power consumption. Make sure you don’t have a disk in the optical drive and if possible launch all the programs you’ll use before disconnecting the power adapter. Doing all this I’m getting better than 4 hours on a charge even though WiFi is on all the time.
The same head tech told me that while calibrating the battery you should not drain it as quickly as you can but, just the opposite, you should drain it as slowly as you can. Again, I don’t know if he is correct but over the years I’ve known him to be correct more than not.

Average Battery Consumption and Maintenance

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