Charging With USB Port

Will a device charge using a USB Port even if the computer is in sleep mode?
Dicecounter
Atlanta GA
Intel iMac & Intel MacBook Mac OS X (10.4.8)
Intel iMac & Intel MacBook Mac OS X (10.4.8)

Probably not. The USB ports usually shut off when the computer is put to sleep. However, some USB devices will prevent the computer from sleeping.

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My iphone5 wont charge with usb port but works fine with wall plug... Infact computer. Doesn't recognizes the iphone

Battery not charging with usb port but works fine with wall plug.. So the prob is computer is not detecting the iphone5 . This problem started after upgrading to 6.1.3 version

Try to see what happens on another computer. If it works on another computer, the issue is not at the iPhone.

I can't sync with FireWire port and I can't charge with USB port!!

Hi. I've a old model of iPod (M9244Y). After the last update, my iPod does sync with the FireWire port.
I tried with another PCs and Mac but it does work. Finaly I buyed an USB cable and this one syncs but not charge.
I've restored to early versions of iPod Updaters but it does not work again. Can I do somethig to fix it?
Why I can't sync with the FireWire port?
Please help me, I can't live without iPod, I can't live without music!!!

Do you have other Firewire devices? Do they work? Could be the FW ports are not working right.
First thing to do is reset the FW chip set on the mother board. Unfortunately, when you power down the computer there is always a bit of power still applied to the motherboard to keep things alive and this usually includes the ports to do stuff like detect when a device wants to wake up the computer. The downside of this is when a bus/port chipset goes into a weird state, power cycling the computer won't work.
So first thing to try is resetting the chipset and to do this you have to power down the computer and completely unplug the computer from the wall power (unplug the power cord to your Mac). Also unplug everything from the Mac's ports (USB, FW, Ethernet, etc.) to make sure no parasitic power is still there to keep the chip alive. Now let it sit for ten minutes (give those big power caps in there time to discharge). Now plug it back in, start up the Mac and see if your FW ports and the drive work any better.
Patrick

Is it safe to use the Belkin power strip with USB ports to charge my iPad? Or is the iPad USB adapter the safest route to take when traveling with device?

Is it safe to use the Belkin power strip with USB ports to charge my iPad?
Or is it better to travel with the Wall Charger provided with iPad?
Concerned about safety of the device. Thanks for your thoughts.

The quickest way (and really the only way) to charge your iPad is with the included 10W 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 (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- beyond-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
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30
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
Tips About Charging for New iPad 3
http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
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

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

Why MY ipad don't charge on usb port, on Macbook pro

why MY ipad don't charge on usb port, on Macbook pro

Because the port you're using just isn't putting out enough juice. The Power Adapter which came with your iPad puts out 2A of charging current, while the most powerful USB port on any computer is going to be putting out 500mA at most (and many brands, especially PC laptops, put out considierably less).
That's why your User's Guide recommends you use the Power Adapter.

HT1688 I have a honda civic with USB port which allows play back of my old iPhone 4 and 4s. With the new iPhone 5 the radio shows the phone is conected but does not show any music content.

I have a honda civic with USB port which allows play back of my old iPhone 4 and 4s. With the new iPhone 5 the radio shows the phone is conected but does not show any music content. Any Suggestions?

You should be syncing your contacts with an app on your computer or cloud service (iCloud, Gmail, Yahoo, etc), and not relying on a backup. If you haven't been doing this, start now and then restore your old backup. You will then be able to sync the new contacts back into the phone. However, you will lose all messages, etc newer thant the backup.

Only charge with USB to PC

The phone does not charge when using the wall or the car charger. It charges with USB plug to a PC. This happened after OS4 upgrade. Does anyone have the same issue? Ken

Same here. Any solution?
3G - OS 4 - Windows xp
Message was edited by: Tato_c

I got an Ipod shuffle because I have two cars with USB port for mp3. It doesn't work. Can it ever?

I got an Ipod shuffle because I have two cars with USB port for mp3. It doesn't work. Can it ever?

im not shure but if you get an 3.5 mm sterio headphone jack and plug that in your car and shuffle it should work just as good

Why does my ipod not charge with usb hub in wall outlet?

why does my ipod charge on my computer
not charge with usb hub in wall outlet?

Because the hub is not compatible with the iPod.
Just use your computer or purchase a wall charger.

Get "using too much power" message when charging with USB

I have a 4th gens iPod Touch that appears to have a number of issues:
1. get "using too much power" message when charging with USB
2. can't re-boot
3. unable to access iCloud Backup, Ignore and Settings button inactive
4. unable to unlock unit when using the Home button to turn the unit on

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar

Print not response when i connect T1100 Epson to router RT-N16 ASUS with USB port???

For my macbook pro that I brought July 2010. I can print with T1100 Epson printer connect directly to my mac but when I connect T1100 to ASUS Router RT-N16 with USB port and I assign print to T1100 pass through wireless It's not response. How do we do please ???
Many Thanks for your answer...

Hello Shawnondrums,
Welcome to the HP Forums.
I see that you are having an issue with the printer shutting down when attempting to connect to the wireless network.
A very important step that gets easily over looked is, please make sure that you have the printer power cable connected directly to a wall outlet and not a power bar/strip. Here is a document that uses a LaserJet printer as an example but it is meant for HP products in general. Please click on the following link that explains the Issues when Connected to an Uninterruptible Power Supply/Power Strip/Surge Protector.
Once the printer is back on, please use the on/off button to do a proper shut down and restart. This will also do a semi power reset on the printer.
If the troubleshooting does not help resolve your issue, I would then suggest calling HP's Technical Support to see about further options for you. If you are calling within North America, the number is 1-800-474-6836 and for all other regions, click here: click here.
Thanks for your time.
Cheers,
Click the “Kudos Thumbs Up" at the bottom of this post to say “Thanks” for helping!
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
W a t e r b o y 71
I work on behalf of HP

My iPhone 5 suddenly stopped getting charged via USB port.

Does anyone know how to reset this so I can start charging via USB port again?

Hello beenafromgbr,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Troubleshooting iPhone, iPad, and iPod touch accessories.
http://support.apple.com/kb/ts2634
Best of luck,
Mario

My laptop macbook pro has a problem with usb port they are not working.

hi there i have a late 2011 mac pro, its been 2 years of purhase however reary used, now it has a problem with usb port are drawing too much power and usb ports are dissabled from the system. now i can not use usb ports. do yo have solution for it??? cheers

Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Best.

HT5868 My iphone 5 with ios 7 stopped promting me to "trust this computer" and wont charge from USB ports now

My iphone 5 with ios 7 stopped promting me to "trust this computer" 1 day ago after doing it everytime i plugged it in to a USB port on my work laptop. It will now no longer charge from any of the USB ports. The USB ports work fine on the laptop for other devices and my phone will prompt me and charge at any other computer in my office. I possibly hit do not trust by accident which may have caused this. I reset all settings on the phone and rebooted my laptop and none of this fixed the issue. Phone syncs and charges fine at home and there were no issues with my work laptop up until 2 days ago with prompts or charging. Any ideas??

Hi,
I'm new on this forum and with my iphone 5c.
'Till some days ago I had a Windows Vista pc and when I connected the iphone, it was recognized.
Yesterday I decided to change my SO in Linux Ubuntu 13.04 but now my iphone isn't recognized and I'm not able to use it.
This message appears on my iphone
"Trust This Computer? Your settings and data will be accessible from this computer when connected via USB or Wi-Fi. [Trust] [Don't Trust]"
I clicked Trust but the iphone buzzes twice, then repeats the prompt. This will repeat endlessly.
I read a lot about the bug, but is there any solutions waiting for the resolution of bug?
I can't use my iphone!!!!

Charging With USB Port

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