USB Battery Charger

I own an iPod Touch 4th Gen, 32 GB, and would like to know if I can charge it with a nine volt battery. What I did was to secure a female USB port to the contacts of a nine volt and plugged in a USB cable. I wanted to test it, so I plugged it into my Motorola Talkabout walkie talkie, which then said it was charging. Then, I tried my Alcatel clamshell mobile phone, same result; it said that I'd connected a charger and started charging. I have not tried my $300 iPod because I don't want to waste 300 bucks. I know that if it does end up charging, it would drain the battery very quickly, so I also want to know if I could use 4 AA bateries wired + to - to obtain the same results. This would be much better because nine volts are hard to come by here and when you do, they are expensive and I've only got one.

Welcome to Apple Discussions.
Actually, it isn't the battery charge feature that's draining the iPod -- because a laptop won't usually supply enough power and because syncing an iPod eats up a tremendous amount of power that's probably the problem here.
Your best bet is to get and use the three way cable that lets you plug one end into AC power at the same time it's attached to your laptop.

Similar Messages

Disable USB battery charge

Hi.
I think that my question is very simple. I want to connet my iPod Nano to my computer via USB port, but I don't want to charge it (I just want to transfer data). This way I make full charge cycles, avoiding charges of little time when I transfer data. Is there some way to disable USB battery charge while my iPod is plugged in an USB port?
Thank you in advance.
Víctor
iPod Nano Windows XP Pentium III 866 GHz HDD 320 GB, 384 MB RAM

I don't think there is. Only thing I can think of is disabling the USB port which would defeat the purpose since then you wouldn't be able to transfer data. You do realize that "full charge cycles" are determined not only in one continous use and discharge, but also 2 or more small charges that equal one full charge cycle. (example: allowing your battery to hit the 50% mark, charging it to full capacity and then allowing it to drain back down to the 50% mark before recharging equals 1 charge cycle, not 2). This is info explained below in the info that I pasted from iPod Battery FAQ's .
Question: What is a "charge cycle"?
Answer: Lithium-ion batteries can be charged a finite number of times, as defined by charge cycle. A charge cycle means using all of the battery's power, but that doesn't necessarily mean a single charge. For instance, you could listen to your iPod for a few hours one day, using half its power, and then recharge it fully. If you did the same thing the next day, it would count as one charge cycle, not two, so you may take several days to complete a cycle. Each time you complete a charge cycle, it diminishes battery capacity slightly, but you can put your iPod's battery through many charge cycles before it will only hold 80 percent of its original battery capacity.

Ipod usb battery charger

Is there any way to disable the battery charge feature for the 4g ipods when connected with the usb cable? i have a laptop and the ipod keeps draining the battery. i really need help this, so any kind of help would be much appreciated

Welcome to Apple Discussions.
Actually, it isn't the battery charge feature that's draining the iPod -- because a laptop won't usually supply enough power and because syncing an iPod eats up a tremendous amount of power that's probably the problem here.
Your best bet is to get and use the three way cable that lets you plug one end into AC power at the same time it's attached to your laptop.

Connecting Bionic to PC with USB - Battery charges, no data storage icon

When connecting to my PC with the USB cord, the battery icon changes and indicates the connection is made. No USB storage symbol appears so that I can transfer files to the phone. Is there a setting somewhere I need to change?

Enable USB Mass Storage
Connect the device to a computer using the supplied USB cable.
Touch Menu.
Touch Notifications.
Touch USB connection.
Touch USB Mass Storage then touch OK.
Disable USB Mass Storage
Connect the device to a computer using the supplied USB cable.
Touch Menu.
Touch Notifications.
Touch USB connection.
Touch any of the following options then touch OK.
PC Mode
Windows Media Sync
Charge Only

USB Battery Charging, et.

So I was reading the manual of my new zen Micro (dark blue, baby!), and I found out that it's better for the battery if you unplug it after it's finished charging. then i started wondering...when you plug in the usb cable, does the micro start charging? so would it be a bad idea to keep the thing plugged into the computer?
Another thing: I know you can't rate songs on the micro like you can on the ipod mini (boo), but i was thinking that if i rated the songs on the creative media source program, and then somehow figured out a way to keep synching the auto playlists that it creates to a playlist on the micro, this would sorta work around the issue (though not in a cool way, and i haven't tried it yet (don't want to screw the batteries, see above, by keeping it hooked up and snching all the time)).
Finally, wouldn't everything be a bit cooler if they could keep track of how many times you've played a song on the micro? i think the media source sorta does this. Also, why does the media source organizer look so terrible? maybe i've been spoiled by using media monkey (check it out, it was my life, until I thought of the "Another thing" above.
Oh, last thing, i swear, because I said this somewhere else, but does anyone have any idea why Creative decided to limit the amount of the micro you could use as a portable hd to 2 gigs?
I love the little guy, if you don't have one, and you can find one, get it.

USB charging is a lower voltage charge but I think you should still unplug the player after it's been fully charged. While tranferring tracks or organizing the music it won't really make a difference. I know that a couple nights ago I charged a player over night (Meaning it was plugged in for like 5 hours with a full charge) and the battery's charge seemed to drain a little more quickly. I know this is highly anecdotal but just some thoughts.
I don't see the need to rate the music on the player (most of my music is ripped straight from CD so it's all pretty good) and for what most people use a Mass Storage Device for personal files or maybe a few movies and 2 gigs is more than enough.

Any USB Battery Charging (BC 1.1) compliant Nokia ...

There are begining to be a good selection of USB hubs and chargers which support the USB-IF BC 1.1 standard, which finally defines a standard way of using USB to do higher power (~3x faster) charging.
USB 2.0 to this point has been limited to 500mA. BC 1.1 supports up to 1800mA dedicated (1500mA while in low/full speed mode; 900mA at high speed).
BC 1.1 is the basis of the GSMA Universal Charging Solution.
But I can't find a list of Nokia devices which support BC 1.1. Are there any at all, or is Nokia not supporting a standard they helped create?
Is there a complete list anywhere?
Thanks!

I'd really like to know that as well. I'm using a Nokia N8 and have a motherboard with BC 1.1 support. How odd you haven't gotten a reply to your question yet.

Battery charging by usb port on PC and adapter which is better

Please help me
Battery charging by usb port on PC and adapter (enclosed with IPHONE box )which is better?
Regards

Adapter is probably quicker as you have slightly better power than from a USB socket

N86: charging using external usb battery

Hi all,
I was wondering if anyone found a solution for charging the N86 using an external USB battery. I have two such batteries and my N86 refuses to charge from either of them. One of them works flawlessly with the iPhone so I know it's supplying at least 1000mA.
I was wondering if we need a special USB cable other than the one supplied by Nokia.
Any pointers would be appreciated.

USB charging is a lower voltage charge but I think you should still unplug the player after it's been fully charged. While tranferring tracks or organizing the music it won't really make a difference. I know that a couple nights ago I charged a player over night (Meaning it was plugged in for like 5 hours with a full charge) and the battery's charge seemed to drain a little more quickly. I know this is highly anecdotal but just some thoughts.
I don't see the need to rate the music on the player (most of my music is ripped straight from CD so it's all pretty good) and for what most people use a Mass Storage Device for personal files or maybe a few movies and 2 gigs is more than enough.

Yoga 3 Pro Battery Charging Problems

I've combined several discussions into one because there are multiple cross-overs of symptoms.
After reviewing all the posts, I see there are two types of problems discussed:
Battery charging but only to a certain percentage
Battery intermittently charging
Several people have reported success with their limited battery percentage problem by following the solutions suggested by MarinM and Vladtech.
For the intermittent charging, several people have reported that sometimes the battery charges, sometimes it doesn't. I'd like to dig into these reports. I have a few questions I'd like to ask.
When does it charge, when does it not?
Are there any patterns to this?
Does swapping electrical outlets make a difference?
Does the USB 2.0 charging port appear loose?
Does the cable show any signs of damage?
Does the AC adapter show any signs of damage?
When a second device is plugged into the extra USB port on the AC Adapter, does this impact Y3P charging?
Are there any battery error messages?
Thank you for your help,
4/6/15 EDIT: Moved message for escalation purposes. Amy_Lenovo
Amy Tupper
Technical Resolution Lead, Pervasive Issues
Lenovo US
ThinkPad T431s, S3 Yoga 14, Helix, Edge 11 & 14, E431, IdeaTab A1107, IdeaPad A1-07, IdeaCentre Horizon, Yoga Tablet 2 10 1051
First computer was a 1980 Commodore 64 from Radio Shack/ GEnie SFRT member from 1993-1996

I'd like to hear more about what happened to your Yoga 3 Pro not charging.
Did you call Lenovo Service or find another solution?
Thank you,
Amy Tupper
Technical Resolution Lead, Pervasive Issues
Lenovo US
ThinkPad T431s, S3 Yoga 14, Helix, Edge 11 & 14, E431, IdeaTab A1107, IdeaPad A1-07, IdeaCentre Horizon, Yoga Tablet 2 10 1051
First computer was a 1980 Commodore 64 from Radio Shack/ GEnie SFRT member from 1993-1996

First battery charge

Plugged my Ipod shuffle (512mb) into my USB to charge for the 1st time and it blinks for about 10 seconds....it stops blinking or charging after I start using the computer...any ideas what i am doing wrong?

It doesn't have to be fully charged the first time; this is a myth promulgated by the uneducated. To calibrate your battery meter (make it more closely reflect the actual state of charge), charge it up by connecting it to your peecee for 3-4 hours, then start it playing and put the hold switch on. Then leave it alone until the battery finally dies.

Right way for battery charging

Hi everybody! I bought an iPad Air when he was released. Surfing on Internet, I've heard conflicting opinions about the right way to charge the iPad (or the iPhone) to increase its battery life. What I want to ask is this: iit is true that once a month you have to bring the battery to 0% and then charging it?

The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W (5W on Mini) USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- %20beyond-100-battery-level/
New iPad Takes Much Longer to Charge Than iPad 2
http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
iPhone: Hardware troubleshooting (Power/Battery section also applies to iPad)
http://support.apple.com/kb/TS2802
http://www.overthought.org/blog/2014/the-ultimate-guide-to-solving-ios-battery-d rain
http://www.overthought.org/blog/2014/the-ultimate-guide-to-solving-ios-battery-d rain
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30
iOS 7 Battery Life Draining Too Fast? It’s Easy to Fix
http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/
Poor battery life after installing iOS 7.1? Try these simple tips
http://www.zdnet.com/poor-battery-life-after-installing-ios-7-1-try-these-simple -tips-7000027348/
New iPad Slow to Recharge, Barely Charges During Use
http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
iPad: Charging the battery
http://support.apple.com/kb/HT4060
Best Practices for iPad Battery Charging
http://www.ilounge.com/index.php/articles/comments/best-practices-for-ipad-batte ry-charging/
How to Save and Prolong the battery life of your new ipad
https://discussions.apple.com/thread/4480944?tstart=0
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
iPhone, iPod, Using the iPad Charger
http://support.apple.com/kb/HT4327
Install and use Battery Doctor HD
http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8
To Extend a Device’s Battery Life, Get to Know It Better
http://tinyurl.com/b67c7xz
iPad Battery Replacement
http://www.apple.com/batteries/replacements.html
In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
 Cheers, Tom

HT4310 why can I see a battery charging icon on one computer when my 4th generation ipod is connected, but not on another computer ?

I have a fourth generation ipod. when I plug it into my windows 7 pc at work, the battery charge icon appears. when i plug the same ipod into my windows 7 pc at home, no battery charging icon appears. any way to get it to show?

Are you plugging the iPod into a high powered USB 2.0 port at home? Do you have any other devices that are connected via USB on your PC at home?
I assume you are using the same cable you used to plug the Shuffle in at work?
B-rock

Random drop in battery charge while using plugged-in computer

Hey everyone,
I bought my Macbook Pro a couple weeks ago and have generally used it while it is plugged in. Recently I've noticed that while I am using it, the battery charge will suddenly drop from 100% to around 50-60% and the MagSafe adapter will change from green to amber and begin charging the battery until it reaches 100% again. I calibrated the battery the day that I got it and I have never had a problem like this until now. CoconutBattery even says that my battery capacity is more than 100% of what it should be. Please let me know if this is something I should worry about!

I just noticed it happening again.
very strange.
AC Adapter connected and green
icon in menu bar shows AC is connected, not charging.
system profiler shows -1900 to -2500 mA
system profiler shows Fully Charged: No
system profiler shows Charging: No
I am starting to suspect it's related to the ipad being connected, as that takes a good chunk of power to charge.
I wonder if what's happening is that that with everything powered up on the macbook (External display, external Firewire hard drive, USB keyboard, Screen lit up, iPad connected) if it's somehow exceeding the capacity of the magsafe 85W power supply.
to test this out,
I've disconnected the ipad, firewire hard drive, and second display,
done a SMB and PRAM reset
and am charging the battery now.
after that I'll do a calibrate and try to avoid connecting things for the next few days to see what happens.

My iPod displays black & white battery charge icon and sad iPod face. help!

I plugged my iPod into an older iMac; it froze and had to be restarted.
I restarted it and started listening on shuffle.
It would skip through all of my songs without me pressing any buttons.
I restarted again and it worked fine.
I came home and plugged it into my 10.3.9 iMac and the tracks started skiping and barely playing on iTunes.
I tried to eject it, but it wouldn't...so I unplugged it.
I then restarted it, but after the silver-on-black iMac icon came up, the sad iPod face showed.
So I pluged it back into the computer. It spontaniously restarted when I tried all of the steps of restarting and reinstalling.
Then it just displays a black& white old battery charge icon with a thunder bolt that flickers on the screen now and then.
And continues to restart itself with first the apple icon turning into the sad ipod face and then into the battery charge icon.
I really do not want to restore my iPod. I am hoping to keep my files but at this point, my future is bleak.
This happened last night. They said it might just be my battery so I kept it plugged in for about 10 hours. Nothing.
What can I do?
Please, please help.

Hello,
If a sad iPod icon or an exclamation point and folder icon appears on your iPod’s screen, or with sounds of clicking or HD whirring, it is usually the sign of a hard drive problem and you have the power to do something about it now. Your silver bullet of resolving your iPod issue – is to restore your iPod to factory settings.
http://docs.info.apple.com/article.html?artnum=60983
If you're having trouble, try these steps at different levels one at a time until the issue is resolved. These steps will often whip your iPod back into shape.
Make sure you do all the following “TRYs”
A. Try to wait 30 minutes while iPod is charging.
B. Try another FireWire or USB through Dock Connector cable.
C. Try another FireWire or USB port on your computer .
D. Try to disconnect all devices from your computer's FireWire and USB ports.
E. Try to download and install the latest version of iPod software and iTunes
http://www.apple.com/ipod/download/
http://www.apple.com/itunes/download/
F. Try these five steps (known as the five Rs) and it would conquer most iPod issues.
http://www.apple.com/support/ipod/five_rs/
G. Try to put the iPod into Disk Mode if it fails to appear on the desktop
http://docs.info.apple.com/article.html?artnum=93651
If none of these steps address the issue, you may need to go to Intermediate level listed below in logical order. Check from the top of the lists to see if that is what keeping iPod from appearing on your computer in order for doing the Restore.
Intermediate Level
A. Try to connect your iPod with another computer with the iPod updater pre-installed.
B. Still can’t see your iPod, put it in Disk Mode and connect with a computer, instead of doing a Restore on iPod Updater. Go and format the iPod instead.
For Mac computer
1. Open the disk utility, hope your iPod appears there (left hand side), highlight it
2. Go to Tab “Partition”, click either “Delete” or “Partition”, if fails, skip this step and go to 3
3. Go to Tab “Erase” , choose Volume Format as “MAC OS Extended (Journaled), and click Erase, again if fails, skip it and go to 4
4. Same as step 3, but open the “Security Options....” and choose “Zero Out Data” before click Erase. It will take 1 to 2 hours to complete.
5. Eject your iPod and do a Reset
6. Open the iPod Updater and click “Restore”
For Window computer
Go to folder “My Computer”
Hope you can see your iPod there and right click on the iPod
Choose “Format”. Ensure the settings are at “Default” and that “Quick Format” is not checked
Now select “Format”
Eject your iPod and do a Reset
Open the iPod Updater and click “Restore”
In case you do not manage to do a “Format” on a window computer, try to use some 3rd party disk utility software, e.g.“HP USB Disk Storage Format Tool”.
http://discussions.apple.com/thread.jspa?threadID=501330&tstart=0
C. Windows users having trouble with their iPods should locate a Mac user. In many cases when an iPod won't show up on a PC that it will show up on the Mac. Then it can be restored. When the PC user returns to his computer the iPod will be recognized by the PC, reformatted for the PC, and usable again. By the way, it works in reverse too. A Mac user often can get his iPod back by connecting it to a PC and restoring it.
Tips
a. It does not matter whether the format is completed or not, the key is to erase (or partly) the corrupted firmware files on the Hard Drive of the iPod. After that, when the iPod re-connected with a computer, it will be recognized as an fresh external hard drive, it will show up on the iPod updater.
b. It is not a difficult issue for a Mac user to find a window base computer, for a PC user, if they can’t find any Mac user, they can go to a nearest Apple Shop for a favor.
c. You may need to switch around the PC and Mac, try to do several attempts between “Format” and “Restore”
http://discussions.apple.com/thread.jspa?messageID=2364921&#2364921
Advance Level
A. Diagnostic mode solution
If you have tried trouble shooting your iPod to no avail after all the steps above, chances are your iPod has a hardware problem. The iPod's built-in Diagnostic Mode is a quick and easy way to determine if you have a "bad" iPod.
You need to restart your iPod before putting it into Diagnostic Mode. Check that your hold switch is off by sliding the switch away from the headphone jack. Toggle it on and off to be safe.
Press and hold the following combination of buttons simultaneously for approximately 10 seconds to reset the iPod.
iPod 1G to 3G: "Menu" and "Play/Pause"
iPod 4G+ (includes Photo, Nano, Video, and Mini): "Menu" and "Select"
The Apple logo will appear and you should feel the hard drive spinning up. Press and hold the following sequence of buttons:
iPod 1G to 3G: "REW", "FFW" and "Select"
iPod 4G+ (includes Photo, Nano, Video, and Mini): "Back" and "Select"
You will hear an audible chirp sound (3G models and higher) and the Apple logo should appear backwards. You are now in Diagnostic Mode. Navigate the list of tests using "REW" and "FFW". The scroll wheel will not function while in diagnostic mode. For further details on Diagnostic mode can be found at http://www.methodshop.com/mp3/ipodsupport/diagnosticmode/
Try to do the 5in1, HDD R/W and HDD scan tests. Some successful cases have been reported after the running the few tests under the Diagnostic mode. In case it does not work in your case, and the scan tests reports show some errors then it proves your iPod has a hardware problem and it needs a repairing service.
B. Format your iPod with a start disk
I have not tried this solution myself, I heard that there were few successful cases that the users managed to get their iPod (you must put your iPod in disk mode before connecting with a computer) mounted by the computer, which was booted by a system startup disk. For Mac, you can use the Disk Utility (on the Tiger OS system disk), for PC user, you can use the window OS system disk. Try to find a way to reformat your iPod, again it does not matter which format (FAT32, NTFS or HFS+) you choose, the key is to erase the corrupted system files on the iPod. Then eject your iPod and do a Reset to switch out from Disk Mode. Reboot your computer at the normal way, connect your iPod back with it, open the iPod updater, and hopefully your iPod will appear there for the Restore.
If none of these steps address the issue, your iPod may need to be repaired.
Consider setting up a mail-in repair for your iPod http://depot.info.apple.com/ipod/
Or visit your local Apple Retail Store http://www.apple.com/retail/
In case your iPod is no longer covered by the warranty and you want to find a second repairing company, you can try iPodResQ at your own risk
http://www.ipodresq.com/index.php
Just in case that you are at the following situation
Your iPod warranty is expired
You don’t want to pay any service charges
You are prepared to buy a new one
You can’t accept the re-sell value of your broken iPod
Rather than leave your iPod as paper-weight or throw it away.
You can try the following, but again, only do it as your last resort and at your own risk.
Warning !!!! – It may or may not manage to solve your problem, and with a risk that you may further damage your iPod, which end up as an expensive paper weight or you need to pay more higher repairing cost. Therefore, please re-consider again whether you want to try the next level
Last Resort Level
1. . Disconnecting the Hard Drive and battery inside the iPod – Warning !! Your iPod warranty will be waived once you open the iPod.
In Hong Kong there are some electronic shops offering an iPod service for Sad iPod, the first thing they do is to open up the iPod’s case and disconnecting the battery and the Hard Drive from the main board of the iPod. Wait for 5-10 minutes and reconnecting them back. The reason behind which I can think of is to do a fully reset of a processor of the iPod. In case you want do it itself and you believe that you are good on fixing the electronics devices and have experience to deal with small bits of electronic parts, then you can read the following of how to open the iPod case for battery and HDD replacement (with Quicktimes)
http://eshop.macsales.com/tech_center/index.cfm?page=Video/directory.html
2.Press the reset button on the Hard Drive inside the iPod – Suggestion from Kill8joy
http://discussions.apple.com/thread.jspa?messageID=2438774#2438774
Have I tried these myself? No, I am afraid to do it myself as I am squeamish about tinkering inside electronic devices, I have few experiences that either I broke the parts (which are normally tiny or fragile) or failed to put the parts back to the main case. Therefore, I agree with suggestion to have it fixed by a Pro.
2. Do a search on Google and some topics on this discussion forum about “Sad iPod”
What should I do with my iPod? Send it or keep it?
http://discussions.apple.com/thread.jspa?threadID=469080&tstart=0
Strange error on iPod (probably death)
http://discussions.apple.com/thread.jspa?threadID=435160&start=0&tstart=0
Sad Face on iPod for no apparent reason
http://discussions.apple.com/thread.jspa?threadID=336342&start=0&tstart=0
Meeting the Sad iPod icon
http://askpang.typepad.com/relevanthistory/2004/11/meeting_thesad.html#comment-10519524
Sad faced iPod, but my computer won’t recognize it?
http://discussions.apple.com/thread.jspa?messageID=2236095#2236095
iPod Photo: unhappy icon + warranty question
http://discussions.apple.com/thread.jspa?messageID=2233746#2233746
4th Gen iPod Users - are we all having the same problem?
http://discussions.apple.com/message.jspa?messageID=2235623#2235623
Low Battery, and clicking sounds
http://discussions.apple.com/thread.jspa?messageID=2237714#2237714
Sad faced iPod, but my computer won’t recognize it
http://discussions.apple.com/thread.jspa?messageID=2242018#2242018
Sad iPod solution
http://discussions.apple.com/thread.jspa?threadID=412033&tstart=0
Re: try to restore ipod and it says "can't mount ipod"
http://discussions.apple.com/thread.jspa?threadID=443659&tstart=30
iPod making clicking noise and is frozen
http://discussions.apple.com/thread.jspa?messageID=2420150#2420150
I am not suggesting that you should follow as well, but just read them as your reference. You are the person to make the call.

IP4 Charging..USB to PC (MAC) vs USB Wall Charger??

Could there be a difference in the way the battery is recharged when charging the IP4 using a USB cable connected to a USB dock, which is connected to a Mac Mini vs charging the phone using the USB wall charger?
Couple days ago my IP4 battery drained normally, indicator went red since it was less that 20% capacity, so I plugged it into a USB cable that I had been using to charge my IP 3G. That cable goes to a USB dock connected to my Mini, my 3G always seemed to charge fine using same calbe...seems the IP4 charged ok as well...though it did seem to take longer for a full charge. I briefly used the phone that evening. When I went to bed, battery was at about 90% charged, almost full charge. Next morning, it was down below 20%. Charged it again next day using USB wall charger, used the phone more last night, but phone was close to 90% available this morning.
I don't believe the previous evening I ran any wacky app or process that could have been running overnight, I checked that first, same few apps I normally used showed.
So, does how the IP4 get charged, USB to PC vs USB to wall outlet make a difference in how the battery charges?

it will take longer to charge on a computer because there is less power going to the phone thats just the way it works
however no matter where you charge it and how long it takes to charge its not going to deplete quicker based on one source or another there must have been something that drained your battery

USB Battery Charger

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