Using usb power to charging

using usb power to charging ipod touch battery life will lasting long or not ?

It doesn't matter, as long as the power source provides the correct voltage, be that a USB port on a computer or USB power adapter.

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Using USB Power Adator in S. Korea

Traveling to S. Korea and wondering if I can go ahead and plug in my iPhone using the usb power adaptor that came with my iPhone. Of course, I will get a plug adaptor for their odd looking plug ins. I think I remember plugging in my MacBook Pro and iPod no problem last time.
Any good tips on what features to shut off so ATT doesn't charge me thousands of dollars during my 3 week stay?
Thanks in advance.

There is no problem using the adapter in South Korea. It is dual voltage, so it will automatically work for you.
Have a good trip and enjoy your iphone...

Using USB port to charge Pearl

I can't find the original post I wanted to comment on so I am just sharing this as a new post. Belkin and several other companies make USB hubs that have AC (110 V) adapters that power them. If you use one of these you will never have the underperformance issues with the 3 volts your PC's USB ports seem to be able to muster. I had problems powering up multiple USB drives and my two phones at the same time before I adopted this fix. Don't have a take on the laptop / phone charger scenario.

The AT300se is really recongnized by the laptop (same when using USB 2.0 or 3.0 port).
I dont have any SDHC or SDXC card on the tablet.
i see a difference with my mobile phone when it s connected i have a new window which appear withe a new letter drive for it.
Nothing happens with the tablet but when i open the explorer on the laptop i see the disk of the AT300 and a new lines appear with removable peripheral .
Thanks for your help
Message was edited by: tf

Macbook problems after using usb power

Hi, something verycstrange happened to my macbook yesterday, i bought some speakers with usb energy conection, when put in usb macbook turned off and now i cant turn it on. No way, when conect charger , not even the light turns on, absolutley nothing happens anymore. I brought the notebook into the apple store but it takes a few days. Anyone of u have an idea what that can be. I m a bit surprised that this happens to a mac, its not even 2 years old

Welcome to Apple Support Communities
Your MacBook does not turn on and even the power adapter light does not work, so it looks like the whole logic board is damaged somehow. If this is the problem, it's going to be a expensive repair for sure (unless you have AppleCare). This is not the first case I see related to Macs stopping working after connecting a USB peripheral.

My ipad is not charging with 10W usb power adaptor ? what are the causes?

My Ipad is not charging with the 10 W USB Power Adaptor Charger ? Please tell me .....What can be the issues with solutions to resolve them ? Even when the USB is connected to computer it is not charging , however , the transfer of data is taking place including Sync. Is there a problem with the charger or the ipad please isolate & inform. Thanks.

1. Clean docking port with clean paint brush
2. Try another cable
3. Try another charger

I have purchased new iphone 3gs, its usb cable and charger not working.When I plugged in usb cable to my laptop it says"usb power hub exceeded". When I use another cable I have, it works fine.But the original one not working.Any help?

I have purchased new iphone 3gs, its usb cable and charger not working.When I plugged in usb cable to my laptop it says"usb power hub exceeded". When I use another cable I have, it works fine.But the original one not working.Any help?

Are you connecting your iPhone directly to your PC or to a USB hub?

Do I have to have an apple USB power adapter to charge the ipod or can i use one for a htc phone?

Must I have an Apple USB power adaptor to charge an ipod or can I use the power adaptor from my htc cell phone?

Read the cell phone user manual to see if the charger can charge an iPod Nano.
FYI the usb power charger (AC) does not have to come from Apple. I purchased mine from Macmall.com

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

Can i use my blackberry torch charger to charge my iPod4s? The charger looks very similar to the 5W USB power adaptor that Apple sells to charge the iPod?

can i use my blackberry torch charger to charge my iPod4s? The charger looks very similar to the 5W USB power adaptor that Apple sells to charge the iPod?

Actually, the bb charger is a 5V, 750 mA charger (which would make it a 3.75W charger vs the 5W that Apple sells for the iPod). Therefore, I would think that my bb charger should work for both bb and iPod, but would charge the iPod at a slower rate, with little harm done to the gadget, but I defer to any opinion that would suggest otherwise?

Hi- Iphone 5 wont charge using power cable or USB...I am using a genuine apple charger/cable..this started after I was prompted with new update for IOS 7.

Hi- My Iphone 5 wont charge using power cable or USB...I am using a genuine apple charger/cable..this started after I was prompted with new update for IOS 7 yesterday. My phone is dead and wouldnt power up ..have tried resetting using itunes but i doesnt detect the phone and..pressing sleep/home button doesnt do anything

Update
I guess that it just had a bad connecting port on the phone itself, no clue why it wouldn't work when plugged in both ways other than there is actually some differentiating between the two sides.

HT4060 Can I use the power cord (30-pin and USB) that came with iPad 2 to charge it in my car's USB port?

Can I use the power cord (30-pin and USB) that came with iPad 2 to charge it in my car's USB port? Or do I need to purchase one of those cigarette lighter charging devices? Thanks!

You'd have to read your car manual but chances are it won't put out enough power for the iPad. The car is likely set up to charge a phone, most of which typically want half the power an iPad wants.
I think your options are to get a cigarette lighter looking charger, making sure it's powerful enough for an iPad...or you can get power inverters for about $25, where they plug into the cigarette lighter/power point and have a normal household type outlet on the other end. Then you'd just plug your charger in like you would at home.
Another option would be to look for something like a Zagg Sparq, which is a battery operated charger...plug the Sparq into the outlet at home. Its battery holds a charge and you can use that to charge your device. (zagg isn't the only manufacturer of such a device, Targus has one as well). Just look for portable chargers.
The key to remember is to make sure it's rated for an iPad, which will want more power than a cell phone.

I bought a usb power adapter for my ipod nano so I can plug inti a power outlet. Will this take less time to charge my ipod or same amout of time if using the computer?

I bought a USB power adapter for my ipod nano so i can take it camping and use an outlet. Will this take less time for charging or the same amount as the computer?

Hi, Atcandela.
I've a Macally external fire/usb enclosure that powers up and mounts directly on to my PB Aluminum 1.67 laptop but the USB portion doesn't draw power.
Do you mean it mounts and works OK when connected via FireWire, but not when connected via USB? If so, that's unsurprising. I would be surprised to hear that it doesn't mount when you use the FireWire connnection, because most drives are able to get enough power from that port.
Does MacAlly not offer a cable for your drive that allows it to draw power from both your USB ports? Some manufacturers of external drives or enclosures do offer such a cable, and it's well worth buying because it's much smaller and more portable than an AC adapter. Have a look at this one from Western Digital — it might fill the bill for you.

HT1476 Can i use wall power charger 5v 1A to charge Ipod touch5 or only via usb?

Can i use wall power charger 5v 1A to charge Ipod touch5 or only via usb?

5volt 1amp charger is standard for charging the iPod (5watts). Using a USB port can take longer because the charging current can be somewhat less than 1amp. So you are better off using the wall charger.

Why is it that my iPod only charges while its off when I use my power bar that has a USB thing for my iPod 4g 6.1 When it's on it doesn't charge, but if its turned off completely it charges what has happend?

Why is it that my iPod only charges while its off when I use my power bar that has a USB thing for my iPod 4g 6.1 When it's on it doesn't charge, but if its turned off completely it charges what has happend?.

.

HT1665 Can I use a 10 W USB power adapter from an IPad to charge an iPhone 5s.

I have 10 W. USB power adapter that I bought for my iPad. Can I plug my iPhone 5s into it to charge? I see that the adapter that comes with the 5s is listed at 5 watts.

volts are pushed amps are drawn
if a charger provide the 5volts ios devices were meant to be charged by it does not matter
if it can provide 1000 amps making it a 5000W device because of ohms law which state W = Amps * Volts

Using usb power to charging

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