110V vs. 220V, which is better?

I'm going to be living for the next several months where I can use either 110V or 220V power. I know the charger is dual voltage, and I can use it with either voltage with a simple plug adapter. My question is, which is preferable? Will the battery charge twice as fast at 220V? Will using 220V create other issues like excessive heat in the charger or laptop? Any other reasons I'm not thinking of? I know the simple Watts = Volts x Amps, but I think that's more for DC current, and I suspect there are other more complex issues with how the charger handles voltage. Since I am not an electrical engineer I'm not really sure how it works. Thanks!

Dear Lee,
As I live in Europe, I can share some additional advice: I'm running the MBP here on the standard 230 V without any problems; given the fact that it's the same model you get in the US (power supply wise, of course keyboards differ), there shouldn't be ANY issues.
With regards to leakage current, they should be within safety limits either way and - as usual - the voltage does not say anything about it, it is a question of total power; you can find some interesting reading here: http://books.google.com/books?id=h1YDVXADtiQC&pg=PA365&lpg=PA365&dq=IEC364Art.707.471.3.3.1&source=web&ots=6qb9-F0HLF&sig=fLlCqM9pU48pXc6WRWQ0SF8A8Wk&hl=e n&sa=X&oi=book_result&resnum=1&ct=result#PPA365,M1)
Best regards,
Michael
P.S.: When you're there, you can just meter the leakage between case an Earth in either case...

Similar Messages

  • 110v and 220v?

    We're getting ready to buy our new iMacs, which we'll buy here, but we thought of buying the Airport Extreme in the US next month while we're there (it's cheaper).
    Does it automatically switch from 110v to 220v or do we have to buy it here? (Israel)
    Thanks!
    susan

    The previous post was wrong about the voltage . The power unit for the stations sold in the US are in fact 110-250v. In the US the cable has a US plug but all you need do is cut it off and replace with a plug that works in your 240 v country or use an adaptor.
    I have done this with a US bought station now used in the UK.
    I can't comment on the channel issue but voltage is no problem - I think that is now true for all Apple products as I also have a US bought Apple TV that works fine on 240v with a new plug
    With the weak dollar they are a good buy !!!

  • Which is better to use: BEx query or Web Application as an iView in portal?

    Hi gurus!
    Are there any experienced opinions, which is better - publish a BEx query in portal or publish a BEx Web Application in portal? Is it easier to alter the layout attributes etc. if I create a BEx Web Application first before publishing?
    What is the way of fixing for example filter item height if I publish BEx query in portal - is there a Web Application that it uses anyhow which I can fix? Or can I use in that case iView -properties in portal?
    Thankful for advice
    Sari

    ok, means i can use jsp:useBean tag for all my
    classes that are not actually bean. so it will be
    instantiated at run time and provide efficiency .No. Jsp:useBean is used for java bean components.
    >
    but when should i use import statement in my jsp and
    it happen at translation time so will it create any
    type of burden for my code if i import multiple
    classes.For non-java beans, you need to import the classes, period.
    It's not a burden, it's a necessity.

  • What is the voltage of ipadmini retina? is it 110v or 220v? I bought in US and would like to use it in Indonesia

    What is the voltage of ipadmini retina? Is it 110v or 220v? I bought in US and would like to use it in Indoensia

    Thanks, I saw that number in the charger, but what I meant Is what is the volatge in the equipment (the ipadmini) itself? because if the equipments only accept/ built for 110v can be charged with 220v. Indonesia all the voltge using 220v

  • Which is better for performance Azure SQL Database or SQL Server in Azure VM?

    Hi,
    We are building an ASP.NET app that will be running on Microsoft Cloud which I think is the new name for Windows Azure. We're expecting this app to have many simultaneous users and want to make sure that we provide excellent performance to end users.
    Here are our main concerns/desires:
    Performance is paramount. Fast response times are very very important
    We want to have as little to do with platform maintenance as possible e.g. managing OS or SQL Server updates, etc.
    We are trying to use "out-of-the-box" standard features.
    With that said, which option would give us the best possible database performance: a SQL Server instance running in a VM on Azure or SQL Server Database as a fully managed service?
    Thanks, Sam

    hello,
    SQL Database using shared resources on the Microsft data centre. Microsoft balance the resource usage of SQL Database so that no one application continuously dominates any resource.You can try the 
    Premium Preview
    for Windows Azure SQL Database which offers better performance by guaranteeing a fixed amount of dedicated resources for a database.
    If you using SQL Server instance running in a VM, you control the operating system and database configuration. And the
    performance of the database depends on many factors such as the size of a virtual machine, and the configuration of the data disks.
    Reference:
    Choosing between SQL Server in Windows Azure VM & Windows Azure SQL Database
    Regards,
    Fanny Liu
    If you have any feedback on our support, please click here. 
    Fanny Liu
    TechNet Community Support

  • Which is better??????

    which is better?Dam really confused which speaker to buy??
    i currently have a creative m2600.but am not getting enough performance or that feel while watching movies like avatar,step up 3 etc......so am planning to buy a 5.1.......not planning but i have decided to buy a 5.1....so..
    which is better? the 6160 or 6060 or 6100.
    which of these will provide me relly great exprience while playing games and most importantly while whatching hd movies and while listening to music.......
    and other than this what i have to ask is...what is this "db" in speakers. i mean while looking at a speaker specs we can see it..like 65db,85db,75db..etc........
    and when i compared specs of the three speakers i mentioned above i saw that the 6160 has low "db"........why is that?

    The specs is just a guide, you won't be able to tell the slight difference in db using just your ears. Besides, it is just a comparison between the level of a music to the level of background noise, it does not necessary mean which speaker sounds better. If possible, please make a trip to your local electronics store and try out the speakers system yourself.

  • Which is better, Photoshop or Corel?

    Which is better, Photoshop or Corel? I am finding the best one to use for my website [link removed]. Let me know your opinion. Tks all.

    Thank you! I am trying to find the best one for the site [Link removed].
    I used to use Corel before, but now, I am trying to use Photoshop.
    Tk you anyway
    [Removed link]
    Message was edited by: sinious

  • Which is better software for brochures and PDF forms ? Photoshop or InDesign ?

    Which is better software for brochures and PDF forms ? Photoshop or InDesign ? and why ?

    If you are going to be making a lot of brochures, with photos, you probably want both. Photoshop to edit the photos, and InDesign to assemble and layout images with text.

  • Which is better an android or apple

    Which is better getting an android smart phone or an Apple I Phone?

    As the poster Horses 547 said its a matter of personal preference. However I own and use both. Printing via air print is smooth and easy on an iphone. Printing on a android phone is iffy and tedious and you will have to find an app to print since there is no native app to do so. I purchased http://www.printhand.com which costs around $12 from the app store. but it is in my opinion the best printing app out there for android. I use it on my android tablet as well and its great. This company is the maker of the print app on iphones.
    The iphone is a little harder to put your own ringtone on the device. However very easy from the Itunes you put on your computer and hook into.
    Another thing an iphone does is if you use their cloud service or pay for a song it is available on all your ios devices. Iphone, ipad, or ipod or up to five computers registered through itunes on those computers.
    Google play music also can sync with all your android devices.
    Iphone don't have external Micro SD card slots, so the storage on the phone is all you have.
    Iphones use imessage which does not count against your text allotment  to another iphone or ipad user. it send regular text to non iphone users.
    Another thing is Face Time but I found a better program called oovoo at http://www.oovoo.com or in the Google Play Store for free.
    Iphones are paper thin but I have an android that has a larger view area and is also paper thin and light. Depending on the android phone it may have a removable battery, whereas iphones are sealed as are some new androids. I have found the sound for music better on my iphone, and videos are crystal clear. Again on some better androids the music and video is comparable .
    There is really not many differences but it up to the user.
    One last good thing is iphones are updated via Apple, no long waits for OS updates like is done with Android devices, and android devices on Verizon.

  • Which is better for doing animation? Flash 4, 5, MX, CS, or others?

    Which is better for doing animation? Flash 4, 5, MX, CS, or
    others?
    I am used to using brush function more conveniently in Flash
    4 than the other versions I ve tried. However, Flash 4 doesn't have
    pen tool.
    Free News Reader
    http://put.hk
    http://put.hk/reader/forums.macromedia.com/macromedia.flash.html

    1Evan2Wing3 wrote:
    > Which is better for doing animation? Flash 4, 5, MX, CS,
    or others?
    >
    > I am used to using brush function more conveniently in
    Flash 4 than the other versions I ve tried. However, Flash 4
    doesn't have pen tool.
    all pretty identical tho I would go with cs, just because I
    like the GUI much
    more than other versions...
    Best Regards
    Urami
    "Never play Leap-Frog with a Unicorn."
    <urami>
    If you want to mail me - DO NOT LAUGH AT MY ADDRESS
    </urami>

  • Which is better for bulk message scenario in sap xi RFC or Proxy

    which is better for bulk message scenario in ( RFC or Proxy ) ?
    Edited by: prabhatxi on Aug 6, 2010 4:44 PM

    Proxy will alwaays be better option in this case, as it is adapter less framework, and communication happens directly with XI central integration engine. So it is always fast communication and gives good performance.
    But still you should consider other factors, you may consider using RFC as well, as sometime we go for RFC/IDOC as this are the standard interfaces already available rather than creating structure...
    May be you can share more info on what type/volume data are you planning to send via XI?
    Hope this cleart your doubt..
    Divyesh

  • Which is better - Add a dimension or create more members in an existing

    Which is better - Add a dimension or create more members in an existing dimension?
    We are trying to figure out which can give us better performance in terms of calculations and retrieving reports - to add another dimension (entity/country) or add about 500-800 more members in an existing location/division dimension?
    Thank you!

    If you have BSO cube i would recommend to add in the same dimension where as ASO you can add members in a new dimension. Adding a new dimension is like creating a new cube you have to change each and every single calc scripts,report scripts,FR reports,Webforms and your rule files .... all the dependencies has to be changed manually . I think 500 members in the exsting BSO dimension will not impact the calc or retrieval times that much .

  • Which is better for servers, Apache or Tomcat?

    Which is better for servers, Apache or Tomcat?

    For some reason that link I gave you isn't working right now, but it was today, weird. I would get Tomcat simple because sun uses it in its examples and recommends it. Here's sun's link then, it's probably more useful anyway. http://java.sun.com/products/jsp/

  • Which is better sockets/socketchannel why

    which is better java.io.Socket / java.nio.channel.SocketChannel

    Better for what? They both work. Sockets are simple but only support blocking operations. SocketChannels are about ten times as complex to use but they support non-blocking and multiplexed I/O and also various types of direct and mapped buffering so they can also imply less data movement.

  • Which is better for newbies?

    Which is better for newbies, Jgrasp or Netbeans? I need something that explains errors more thoroughly than Jgrasp.

    Here's my code with 3 errors. Now bear in mind that my program has compiled completely and ran correctly up to this method. All I'm trying to do with this method is get the average of all grades in a multi-array. I researched and found some code that was similar to what I needed to do but it's not working out yet. All other methods in my program work perfectly but I can't get this one to compile.
    public double getMean(int allGrades[][])
              int total = 0;
              for (int grade : allGrades)
              total += grade;
         System.out.println("Total is "+getMean(grades));     
              return total/allGrades.length;
    } // end class GradeBookGradebook.java:100: illegal start of type
              return total/allGrades.length;
              ^
    Gradebook.java:100: <identifier> expected
              return total/allGrades.length;
              ^
    Gradebook.java:100: <identifier> expected
              return total/allGrades.length;
              ^
    3 errors

Maybe you are looking for