Charging us iPad in Japan

Can I use the us charger in Japan?

Yes, iPad was desinged to operate from 100V to 240V. What you will need however, is a plug adaptor that will let you plug your US based plug into an outlet in Japan. Just a plug adaptor is all you need. You do not need a voltage adaptor.

Similar Messages

My iPad 3 is not charging on my macbook pro mid-2012. It was working yesterday and it is not working now, and I'm trying to transfer files between them. How do I charge my iPad with my macbook without having to be a completely new computer?

I am trying to transfer files between my ipad 3 and my macbook pro mid-2012 and they will just not connect. I connected them yesterday and it worked fine. And i can not air drop these files into my ipad it has to be done through itunes. And i can not afford to buy a new computer. How do i get these two to connect without having to buy a completely new computer?

Computer USB ports, regardless of the computer maker, have a relatively low power output and thus are not good chargers. They will charge but it takes a long time. You should be charging your iPad from wall power, or a more powerful source like an in-car charger.
Buying another computer will not change that.

Any ideas on how to fix ipad after the new iOS 7 update? My battery will not charge, my ipad is hot to the touch, the iTunes Store won't open, and my messages on Facebook aren't showing up when I chat and pintrest won't pin to my boards.

Any ideas on how to fix ipad after the new iOS 7 update? My battery will not charge, my ipad is hot to the touch, the iTunes Store won't open, and my messages on Facebook aren't showing up when I chat and pintrest won't pin to my boards.

If you have all your music on the cmputer then i would connect up my phone uncheck the Sync Music option and apply.
This should take all the music off your phone .Then you can resync the music back on to it.
If this doesn't work maybe a restore to factory settings and start from scratch is the way to go

Re: Mifi and Charging - does this work for charging the iPad?

I found the following post on here - but it is too old for me to reply directly to it - however, this was a very good post and it worked for me and I would really like to get in touch with mikebob to see if the same thing would work for charging the iPad - his ideas really work. And does he or anyone know how to charge the iPad from batteries?
thanks a lot
mikebob
Contributor
http://community.vzw.com/t5/user/viewprofilepage/user-id/28840
Posts: 3
Registered: 08-25-2009
Device: mifi 2200
0
Re: MiFi and Charging
Options
10-01-2009 07:38 PM
I finally managed to figure out the proper cabling to get the Verizon Mifi 2200 to charge using a generic USB charger. To recap the problem... The mifi device will only charge when using the supplied micro usb charger, or when connected to a computer USB port using the supplied micro USB cable. When connected to a computer, the device reverts to it's connected data mode, which turns off the wifi ssid broadcast and requires the Verizon access manager application to be launched. Most third party chargers will not work... including most 12V lighter to USB adapters, and most backup battery solutions.
Here is what is going on... Per the USB specification, Pins 1 and 4 are 5V power and ground respectively. Pins 2 and 3 are data+ and data-. In most chargers, pins two and three are tied via a pullup resistor to the 5V line. If you measure the voltage on 2 and 3 you will see around 3V, equivalent to a logic high state. This has something to do with allowing the device being charged to identify whether it should be in a fast or slow charging mode. More importantly, it is what the Apple iPod expects to see . So, anyone wanting to build generic USB chargers will probably implement this way in order to tap into the single largest device market around. Unfortunately, the mifi does not like the logic high on pins 2 and 3. I haven't yet sorted out why, but when it sees logic high on pins two and three, it refuses to go into charging mode.
The solution is to use a cable where pins 1 and 4 (5V and GND) are carried straight through. Pins 2 and 3 need to be disconnected from the charging source and shorted together at the Mifi end. If this was a miniUSB instead of a microUSB, it would be what is called a "charge only" cable. I have not found any vendors yet for a charge only microUSB cable so I went ahead and performed surgery on a standard microUSB cable. I took a standard USB cable, cut it and then connected it to a microUSB connector from an old Motorola bluetooth headset charger. Interestingly, the microUSB connector from the Moto charger already has pins 2 and 3 shorted together internally so all I had to do was connect 5V and ground and heat shrink tube the whole thing. With this cable I can charge the mifi from any generic USB port, including those on 12V lighter adapters, and rechargeable backup batteries. In addition, I can also connect the Mifi to my laptop to charge while continuing to access the Mifi via wifi.
Only word of caution... You really need to connect the Mifi to your computer using the standard data cable on occasion, say once per month. The reason is that it is only in this mode that you will receive notifications of S/W updates and/or the need to update your PRL. (preferred roaming list).

Connect to iTunes on the computer you usually Sync with and “ Check for Updates “...
If an Update Appears Install it... if not... you are up to date for your particular Device...
Also see the very end of this Linked page...
Apple - iOS 6 Whats New

HT4060 I would lke to use an iPAD with chart plotting programmes. Is it possible to charge the iPAD from a 12Volt supply or do I have to use an inverter to get mains Voltage first?

I like offshore sailing which means that I am without mains electricty for extended periods. I am considering the use of an iPAD 4th generation with a download of iNAVX which would appear to give an iPAD excellent chart plotting capeabilities. But how to keep it charged after the battery runs out? It seems very inefficient to have to use an Inverter to get a mains voltage, only to reduce it again to the level of a USB output!

Long time sailor but never tried charging an iPad aboard away from dock power.
Try this forum > Ipad 12v charging issues. - Cruise

Unable to charge my Ipad 4 with my Laptop (HP 7010tx) USB . I am Getting error message as "Not Charging" . Please give a solution for this ...???

Unable to charge my Ipad 4 with my Laptop (HP 7010tx) USB . I am Getting error message as "Not Charging" . Please give a solution for this ...???

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- 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
Best Practices for iPad Battery Charging
http://www.ilounge.com/index.php/articles/comments/best-practices-for-ipad-batte ry-charging/
Tips About Charging for New iPad 3
http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
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

Charging an iPad Air in the US via a plug adapter

Hello everyone,
I have a question about charging my European-bought iPad Air in the US.
I am using the original iPad Cable and a socket adapter from SKROOS to charge my iPad and I've noticed that it takes much longer to charge the device compared to Europe. To illustrate I left it completely discharge and then plugged it in in airplane mode and after 4 hours the battery is only 50% full. I do not have another cable to try charging it with, but I've tried two different sockets (at home and at work) and in both cases it takes longer than usual. Hence, I was wondering if taking longer to charge is normal given that I'm using a socket adapter.
Any advice on how to improve the battery charging? Would it be OK if I bought a US charger from Apple? From what I understand my EU-device should hadle the voltage?!
Great many thanks!
Robert

All Apple chargers work from 100-240VAC, 50-60Hz power. All you will need is a plug adapter for the country you are in.
See the various plug configurations for different countries at http://support.apple.com/kb/ht4341
Using US power vs European power shouldn't make a difference.
Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.) No data/files will be erased. http://support.apple.com/kb/ht1430
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
The Ultimate Guide to Solving iOS Battery Drain
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
Charging Tip - Switching to airplane mode turns off battery-draining wireless and cellular access, allowing your iPhone/iPad to recharge up to twice as fast.
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

HT4060 My ipad mini wont charge I bought a new charger since the old one didn't charge my ipad and the same problem is happening i charged it over night and when I woke up it said 50% soo can someone help me this is my first apple product a

Well my ipad mini isn't charging.. I with the original charger it didn't show the charging sign when plugged in.. And I bought a new one a 12:00 one from bath bed and beyond. Now it ain't charging again even thought it did a few days ago.. Now I don't know what to do.. I don't wanna keep buying chargers..

Could be the charger, cable or iPad. Plug the USB cable into your computer. It may say "Not Charging", however, it is charging slowly and will verify that the cable is good.
Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.)
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/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.htmlhttp://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.htmlhttp://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-abouhttp://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-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-ipahttp://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.htmlhttp://www.apple.com/batteries/ipad.html
iPhone: Hardware troubleshooting (Power/Battery section also applies to iPad)
http://support.apple.com/kb/TS2802http://support.apple.com/kb/TS2802
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30https://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/http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/
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.htmlhttp://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/HT4060http://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/http://www.ilounge.com/index.php/articles/comments/best-practices-for-ipad-batte ry-charging/
Tips About Charging for New iPad 3
http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-iphttp://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
How to Save and Prolong the battery life of your new ipad
https://discussions.apple.com/thread/4480944?tstart=0https://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-ipadhttp://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
iPhone, iPod, Using the iPad Charger
http://support.apple.com/kb/HT4327http://support.apple.com/kb/HT4327
Install and use Battery Doctor HD
http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8http://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/b67c7xzhttp://tinyurl.com/b67c7xz
iPad Battery Replacement
http://www.apple.com/batteries/replacements.htmlhttp://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

Hi, my iPad dies in the middle of a purchase for a game add on, when I charged the iPad and reloaded the game a box is on the screen that says " cannot complete your purchase" I can't slope this box, and cat play the game while it is there, I have tried r

Hi, my iPad dies in the middle of a purchase for a game add on, when I charged the iPad and reloaded the game a box is on the screen that says " cannot complete your purchase" I can't slope this box, and cat play the game while it is there, I have tried removing the game several times and reinstalling but the box still appears, I even tried installing the game on a different apple I'd, and still the box is there, do you k ow how to fix this?

Hi Bev076,
I would try these ideas first:
iPhone, iPad, iPod touch: Turning off and on (restarting) and resetting
http://support.apple.com/kb/HT1430
If that doesn't resolve the situation, I would suggest reporting it:
How to report an issue with your iTunes Store, App Store, Mac App Store, or iBookstore purchase
http://support.apple.com/kb/ht1933
Take care,
- Ari

Charge new ipad on macbook pro (mid 2010)

I have a Macbook Pro MID 2010. When I connect my new ipad using MAC OS X Lion it charges normally, but when I connect it on my Windows 7, it doesn’t.
does any of you guys know how to make it work?

Newer mac books have USB ports that provide sufficient wattage to charge an iPad. Very few windows laptops have high powered USB ports so they can only trickle charge an iPad when they can easily charge an iPhone.
It is because the iPad, as has been mentioned, needs to pull 10 watts through the charging system to do a normal charge. This is why the iPad comes with a dedicated 10 wall charger and not the standard 2.5 watt wall charger that comes with the iPhone and iPod.
If you need to buy an extra wall charger for your iPad for when you are on the road or to keep at work make sure it is truly iPad compatible. I found a really nice two port charger that provides high (10 watts) capacity on one port and low (2.5 watts) on the other. So I can charge both my iPhone and iPad at the same time without damaging my devices or the charger.

Ipad 4 not charging with the ORIGINAL Power adapter that came in the box. Can't charge my iPad. I plugged in on PC all night and has been charged to 7%

Yesterday, as usual was going to charge my iPad, it was at 1%. Well, I took my ipad charger (original Apple official, I want to clarify that as a first step, I'm using the brand products than Apple) and plugged into an outlet ... The ipad began loading the first two minutes , then I got a notification telling me that the iPad could not charge with the charger.
I was quite surprised by the announcement. I disconnected and reconnected it .... again, I received the same notification. Then I disconnected and tried it on another outlet ... anything, yet. then I tried it on another outlet and ipad started charging. but after a while I had the same notice, not paying attention to that. I left it charging and I removed roughly 25% that of fear for something to happen. also remembered that situation (made 2-3 months ago where the iPad was not charging but after waiting a while disconnected, reconnected it and loaded normally).
so I decided to wait to re-connect the iPad to the outlet. This time, I plugged it into the outlet (fully discharged) at night and expected to find it loaded in the morning. But my surprise is that it still is off, it did not load anything.
I Bought the iPad in December 2012. Do you think that my iPad is hurt?
What can I do? Ay recommendation?
Please, HELP ME!

Try giving your iPad a reset. Hold down the sleep and home keys until you see the silver apple. Let it reboot and try again. You may also want to swap out the cable, just to confirm or rule out that it's bad.
If none of those fixes work, make the appointment at your apple store and have them check it out.

HT4060 Is it normal for someone to have general diffuculty charging an ipad? I see the "not charging" message even when I am using the charger and cord that came in the original box, plugged into a wall socket directly. It just seems to be exceedingly f

Is it normal for someone to have general diffuculty charging an ipad? I see the "not charging" message even when I am using the charger and cord that came in the original box, plugged into a wall socket directly. It is normal for me to plug it in overnight and to see no charge whatsoever the next day. I have never had so much trouble using a friggin charger in my life. It just seems to be exceedingly finicky. What am I missing?

Charging your iPad should not be problematic. It should be an easy thing to do using the charger provided with your iPad connected to a known good wall outlet.
The charging problem you are experiencing is most like caused by:
1. A faulty charger
2. A faulty cable
3. A bad wall outlet
4. A problem in the iPad.
The first three of these are easiest to eliminate. Try a for ends charger and cable. Make absolutely sure your outlet is good. Try other outlets.
If the charger, cable and outlet a proven to be good then the problem lies in the iPad.
Make an appointment at an Apple Store to have your device examined by a technician. Or contact Apple Support.

What adapter do I need to use for charging my iPad in Greece?

what adapter do I need to use for charging my iPad in Greece?

The iPad charger can be used in any country.
it's rated 100V to 240V 50/60 Hz
You only need a plug adapter to suit the wall socket.

Why won't a apple usb cable charge my ipad?

So I left town for work and forgot my ipad charger. I've tried a generic once for ipods that didn't work and I also tried an offical apple usb cable direct to the computer and that didn't work. Anyone have any suggestions on why those don't work other than buying an ipad specific one?

The USB ports on most computers are too low power-out to charge the ipads with them powered up. They will slowly charge the ipad with the ipad sleeping.
It will say "not charging" when awake, but it may very slowly charge.
The ipad supplied charger is 10 watts (5 Volts at 2 amps)
The iphone/ipod chargers are typically 5 watts (5 volts at 1 amp)
The typical computer's usb port is 2.5 watts (5 volts at 0.5 amps)
Note: Some of the newer mac's have a higher powered usb port and will give a good charge indication on the ipad.
Hope this helps...

Can i use a 5 watt charger on ipad retina?

Have an ipad retina display ( not mini) my charger got ruined and bought a 5 watt charger, can i use it?, will it ruin my ipad? Will it reduce the overall batrery life. Thank you for support

No, the iPads use chargers that are either 10 or 12 watts...a 5 watt charger is not powerful enough to charge an iPad.

Charging us iPad in Japan

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