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-   -   Standardized mobile phone charger coming to EU—iPhone, too (https://talk.maemo.org/showthread.php?t=29987)

GeraldKo 2009-06-29 19:53

Standardized mobile phone charger coming to EU—iPhone, too
 
http://arstechnica.com/telecom/news/...rger-in-eu.ars

I'm glad to see it.

Baloo 2009-06-29 20:13

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
We are pretty much there already. The last 4 phones I have had have had micro-usb chargers.

lma 2009-06-29 20:59

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
And apparently your next 4 are going to have micro-usb.

JustNick 2009-06-30 07:42

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
I simply hate the idea...
1) Charging via USB will probably turn into "we provide you with a cable to use you computer" a la Apple, no wall plug... you want it, you buy it for extra 30$ (or 30€)
2) The same USB port will be used to charge and to transfer data, the problem I see is that batteries will be more stressed... I don't trickle charge a lithium battery, my N800 is 2 years old and the battery has the same capacity as its first day of life, while I can't say the same for my smartphone which charges every time i connect it to the PC (and it is six month younger than my tablet...)
3) Some devices need more current than others, so to make each and every charger work with each and every device it will be necessary to fix a minimum current which will be higher than the higher current needed by those devices. Switching regulators work at their best when the load current is precisely the erogated one, so loss of efficiency could be there too...

They think that having a standard way of charging devices will result in less e-waste, I say that given the number of devices (and consequently the number of chargers) and the normal lifespan of a charger (given it is no-user serviceable) nothing will change...
It would have been a smarter move to push recycling and creating collecting point for specific appliances...

twaelti 2009-06-30 14:39

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by JustNick (Post 301037)
I simply hate the idea....

You are a pessimist :)
Here some advantages:
  • Forgot your charger on a trip? Running low on batteries? Chances that someone else has a charger that you can use raise to 99.9%
  • Need multiple chargers (home, work)? Whatever charger you find, it will be ok.
  • Chances increase that other gadget makers will adapt to such a standard (digital cameras, USB disks, wireless mice, bluetooth headsets etc.)
  • (Everybody using the same voltage to charge might reduce the number of different battery types)

attila77 2009-06-30 15:33

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by JustNick (Post 301037)
I simply hate the idea...
3) Some devices need more current than others, so to make each and every charger work with each and every device it will be necessary to fix a minimum current which will be higher than the higher current needed by those devices. Switching regulators work at their best when the load current is precisely the erogated one, so loss of efficiency could be there too...

Exactly, but this is an advantage ! Since the USB standard defines the exact voltages and currents, it's the *chargers* (=devices) who must expect those currents. That's why the choice is that important to manufacturers (the USB standard was already extended to accomodate for larger currents on the bus needed for device charging).

Quote:

They think that having a standard way of charging devices will result in less e-waste, I say that given the number of devices (and consequently the number of chargers) and the normal lifespan of a charger (given it is no-user serviceable) nothing will change...
A couple of EE notes on this. The actual 'charger' is already in the phone - the current 'brick' is just a (pretty dumb) current limited power supply most of the time. USB is pretty smart and exact with regard to power specs (and reporting it's abilities), so it depends entirely on the charger whether how it will charge (or not).

lma 2009-06-30 23:37

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
FYI, the Openmoko wiki has a lot of information on USB charging. I wish we had that level of documentation and detail here...

GeraldKo 2009-07-01 05:51

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by JustNick (Post 301037)
I simply hate the idea...
1) Charging via USB will probably turn into "we provide you with a cable to use you computer" a la Apple, no wall plug... you want it, you buy it for extra 30$ (or 30€)
...

How about $1.90 instead of $30? Standardizing makes getting these things cheaper.

JustNick 2009-07-01 08:26

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
@ Twaelti: pessimist or realist? :D
@ Attila77: to have an entire computer on just to charge a cell phone... how convenient and environmentally friendly :D I usually charge my devices at night when I sleep, there's no way I'm leaving my pc on to do that! :D And the USB standard really applies only to computers, because the only thing I've seen until now on so called USB-wall plugs is the connector (and believe me, I opened many of them...)
@ GeraldKo: sure, too bad that thing is not going to work for many power-hungry devices (for example the NITs charger is rated 890mA, to charge the battery while powering them) or "magic" devices from a known company who I believe sells some kind of fruit that requires precise differential voltage on signal pins to start charging (and many of the cheap USB chargers don't even connect D+ and D- ).
I have this http://www.boxwave.com/products/bund...phone_2661.htm but you need this http://www.boxwave.com/products/ipho...phone_2661.htm to charge this crap http://www.apple.com/ipodtouch/... 24.40$ for nothing...

Yes, maybe I am a pessimist, still I think that the main goal of a company is profit and I can't believe that in the future this will change...

attila77 2009-07-01 10:04

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by JustNick (Post 301327)
@ Attila77: to have an entire computer on just to charge a cell phone... how convenient and environmentally friendly :D I usually charge my devices at night when I sleep, there's no way I'm leaving my pc on to do that! :D And the USB standard really applies only to computers, because the only thing I've seen until now on so called USB-wall plugs is the connector (and believe me, I opened many of them...)

Why on Earth would you need a computer ? We're talking about USB power outputting wall-warts, extenders and bricks here (the ability to plug into computers and HUBs is a bonus). As there would be one unified standard, the extra few cents of extra electronics cost would be more than offset with the orders of magnitude more units that would be produced (also, being ubiquitous would mean that basically all DC equipment that fits in a few watts would sooner or later end up using it).

Having ONE powered hub style extender is far-far better (even ecologically) than a 220/110 V extender that has a bunch of bricks in it. For example at home I now have a brick-heap by the wall. WRT54GS brick, NSLU2 brick, ADSL modem brick, Nokia charger brick, ground line phone brick, AA battery brick charger... Plus the tetris challenge to fit the above mentioned bricks into extenders... Ugh.

JustNick 2009-07-01 12:09

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by attila77 (Post 301334)
Why on Earth would you need a computer ?

I don't :D Still, if companies stop shipping a wall charger with the purchased device and leave customers with just a cable (à la Apple, as I stated before) hiding behind the "every USB charger will work, even your PC port", what do you think the average dumbling (half man, half dumb, a lesser inabitant of the Shire...) will do?
I've already seen it with my sister's iTouch, she left the PC running overnight to charge it (and then I built her a wall charger out of a Nokia one, and God blesses Nokia and Pinouts.ru :D).
My sister is smarter than me, I have no problem admitting it, she's a very good medical student with good grades and reads a lot, so this pretty much proves my point :D

Don't get me wrong, I love standards, but I don't trust companies too much when it comes to using them :D

Quote:

Originally Posted by attila77 (Post 301334)
Having ONE powered hub style extender is far-far better (even ecologically) than a 220/110 V extender that has a bunch of bricks in it. For example at home I now have a brick-heap by the wall. WRT54GS brick, NSLU2 brick, ADSL modem brick, Nokia charger brick, ground line phone brick, AA battery brick charger... Plus the tetris challenge to fit the above mentioned bricks into extenders... Ugh.

I like tetris, but not playing it under my desk with potentially lethal current :D
I found a way to avoid it: most of the devices you listed work with a 12V DC and are network related, so I build adapters (a cable with female D-connector and round plug) to power them via a standard 200W AT power supply :)

Lord Raiden 2009-07-01 12:16

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by JustNick (Post 301327)
Yes, maybe I am a pessimist, still I think that the main goal of a company is profit and I can't believe that in the future this will change...

Profit *is* the goal of every company. But sometimes being a team player, or at least appearing as such, carries more financial benefit than looking like a pompous prick who wants you to do everything their way while they rob you blind. That may be their goal, but they're not exactly going to advertise it. Especially if it risks their loosing business.

attila77 2009-07-01 13:13

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by JustNick (Post 301347)
I don't :D Still, if companies stop shipping a wall charger with the purchased device and leave customers with just a cable (à la Apple, as I stated before) hiding behind the "every USB charger will work, even your PC port", what do you think the average dumbling (half man, half dumb, a lesser inabitant of the Shire...) will do?

You can't really make industry-wide conclusions on a (currently not even existing) situation based on a single company's policy. Say, the new Nokia's can also be charged via USB but still ship with a classic wall-plug, too.

Quote:

I've already seen it with my sister's iTouch, she left the PC running overnight to charge it (and then I built her a wall charger out of a Nokia one, and God blesses Nokia and Pinouts.ru :D).
ARRGH ! Shooting a flea with a shotgun... Buy her a powered USB hub !

Quote:

I found a way to avoid it: most of the devices you listed work with a 12V DC and are network related, so I build adapters (a cable with female D-connector and round plug) to power them via a standard 200W AT power supply :)
Yes, yes, but that's not really a system solution for the general population, is it ? :)

JustNick 2009-07-01 13:20

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by attila77 (Post 301357)
You can't really make industry-wide conclusions on a (currently not even existing) situation based on a single company's policy. Say, the new Nokia's can also be charged via USB but still ship with a classic wall-plug, too.

Mine was a (hopefully) worst case scenario analisys ;)



Quote:

Originally Posted by attila77 (Post 301357)
ARRGH ! Shooting a flea with a shotgun... Buy her a powered USB hub !

Many powered HUB don't really work without a root device connected, it was faster and cheaper the DIY alternative (and it comes with a green led, too :D)



Quote:

Originally Posted by attila77 (Post 301357)
Yes, yes, but that's not really a system solution for the general population, is it ? :)

No, it isn't :D

Lord Raiden 2009-07-01 17:26

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
Quote:

Originally Posted by attila77 (Post 301357)
ARRGH ! Shooting a flea with a shotgun... Buy her a powered USB hub !

Nah, get her something like this. I never knew they existed until one came with my Sansa Connect. When that got handed over to my mother to charge her player, I went to find a new one and, interestingly enough, stumbled onto a dual usb charger that worked perfectly, even though it was originally designed to charge the wireless controllers (via usb) for a playstation 3.

JustNick 2009-07-01 17:59

Re: Standardized mobile phone charger coming to EU—iPhone, too
 
That won't never work :D First of all iPhone/iTouch need at least 500mA, that one is rated 300mA (what a piece of ... for 9.99$ :() and second I bet it doesn't have the right differential voltage across the signal pins...
Anyway I've already found and built my solution, thanks ;)


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