Slashdot Mirror
Universal Phone Charger Approved By UN Body
andylim writes "Plans for a universal mobile phone charger have been approved by the International Telecommunication Union (ITU), a United Nations body. The charger has a micro-USB port at the connecting end, using technology similar to what is commonly used with digital cameras. It is not compulsory for manufacturers to adopt the new chargers, but the ITU says that some have already signed up to it. 'We are planning to launch the universal charger internationally during the first half of 2010,' Aldo Liguori, spokesperson for Sony Ericsson told the BBC."
Now all we need is a universal standard of (in the words of Douglas Adams) 'little dongly things' for everything else:
http://www.douglasadams.com/dna/980707-03-a.html
'The little dongly things I am concerned with (and they are by no means the only species of little dongly things with which the micro-electronics world is infested) are the external power adaptors which laptops and palmtops and external drives and cassette recorders and telephone answering machines and powered speakers and other incredibly necessary gizmos need to step down the mains AC supply from either 120 volts or 240 volts to 6 volts DC. Or 4.5 volts DC. Or 9 volts DC. Or 12 volts DC. At 500 milliamps. Or 300 milliamps. Or 1200 milliamps. They have positive tips and negative sleeves on their plugs, unless they are the type that has negative tips and positive sleeves. By the time you multiply all these different variables together you end up with a fairly major industry which exists, so far as I can tell, to fill my cupboards with little dongly things none of which I can ever positively identify without playing gizmo pelmanism. The usual method of finding a little dongly thing that actually matches a gizmo I want to use is to go and buy another one, at a price that can physically drive the air from your body...It's hard to imagine that some of the mightiest brains on the planet, fuelled by some of the finest pizza that money can buy, haven't at some point thought 'Wouldn't it be easier if we all just standardised on one type of DC power supply?'...I strongly suspect that if you stuck a hardware engineer in a locked room for a couple of days and taunted him with the smell of pepperoni, he'd probably be able to think of a way of making whatever gizmo (maybe even the new gizmo Pro, which I've heard such good things about) it is he's designing, work to a standard DC low-power supply.'
Apple have already signed an agreement and stated they will be using a standard micro-usb socket on the iPhones in the future. I believe Apple will introduce this socket in 2010.
Source: http://uk.reuters.com/article/idUKTRE55S1XZ20090629
By using micro USB, they did paint themselves in a corner for the 5 volts. However, the current provided has to be a minimum of 500mA according to the USB specs.
Having a power adapter able to supply more than 500mA won't blow up anything since the device should also work within spec and work with a minimum of 500mA.
Chargers being able to supply 5 volts at 2A won't blow up anything and recharge devices four times faster, if required/supported by the device. If not, the device will only take 500mA and the charger just won't be working at its full capacity of 2A.
I wonder if the new phone charger standard mentions a "from 500mA up to X amps" specification or not.