Hi Fanus, Here is some basic physics:
Devices draw a certain current which is measured in Amps. Adapters are rated to operate at a certain power (Watts) and deliver a certain voltage (Volts). The calculation goes like this: Power (W) = Current (Amps) times Voltage (V). So, if you had Apple's full-size universal adapter which is rated to operate at 12 Watts maximum and to deliver 5 Volts DC (direct current), you can now take the amount of current iDevices use and figure out the values. The iPhone, iPod Touch and iPad Mini all draw 1 Amp. The adapter delivers 5 Volts hence 1 Amp times 5 Volts = 5 Watts. The full-size iPad draws 2.4 Amps hence 2.4 times 5 Volts = 12 Watts. This means you can use the adapter from a full-size iPad to charge an iPhone or iPad Mini, it will simply use only 5 Watts of the 12 Watts the adapter is capable of. You can also use a 5 Watt adapter to charge the full size iPad, but it will charge very slowly. It is, however, not unsafe to do that. Here is a link to the Apple Store where a number of charging devices and adapters are listed. these also include 30-Pin to Lightning, Battery Cases and so on, but the 3 primary chargers Apple sells are on that page: The 12 Watt adapter which is the one which comes with any full-size iPad and which is compatible also with iPhones, iPad Mini and iPod Touch The 5 Watt adapter which comes with any iPhone 5S, 5C, 5, 4S and 4, iPad Mini and iPod Touch (not recommended for full-size iPad) Lastly, the Apple World Travel Adapter Kit includes a 12 Watt adapter, a 30-pin to USB cable, and a set of six AC plugs with prongs that fit different electrical outlets around the world. Interestingly enough Apple has not yet released a World Travel Adapter Kit with a USB to Lightning Cable, this way people who buy the kit and are now fully invested in newer devices with Lightning ports and who want an extra Lightning cable get a useless 30 Pin cable and have to buy another cable separately. I guess we know why Apple has now 158 Billion Dollars in cash! Here is the link to that page: http://store.apple.com/ca/iphone/iphone-accessories/power?f=iphone5s&fh=35f9 %2B3ea8#! Best regards, Sieghard -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Fanus Sent: Tuesday, February 04, 2014 8:51 AM To: [email protected] Subject: iDevice chargers Hello list I notice that the charger of the iPhone 5S looks exactly like that of the 4S while the charger of the new iPad mini looks like the charger of the iPhone 3GS and the first iPad. I am just curious whether these chargers are interchangeable because I remember something about the iPhone 3gS charger should not be used to charge the iPad 1. Regards Fanus -- You received this message because you are subscribed to the "VIPhone" Google Group. Post a new message to VIPhone by emailing [email protected]. Search and view the VIPhone archives by visiting http://www.mail-archive.com/[email protected]/. Reach the VIPhone owner and moderators by emailing [email protected]. Unsubscribe and leave VIPhone by emailing [email protected]. More VIPhone group options can be found by visiting http://groups.google.com/group/viphone?hl=en. --- You received this message because you are subscribed to the Google Groups "VIPhone" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the "VIPhone" Google Group. Post a new message to VIPhone by emailing [email protected]. Search and view the VIPhone archives by visiting http://www.mail-archive.com/[email protected]/. Reach the VIPhone owner and moderators by emailing [email protected]. Unsubscribe and leave VIPhone by emailing [email protected]. More VIPhone group options can be found by visiting http://groups.google.com/group/viphone?hl=en. --- You received this message because you are subscribed to the Google Groups "VIPhone" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
