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Hogwash |
2009-10-11
, 00:29
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Posts: 369 |
Thanked: 191 times |
Joined on Sep 2009
@ Virginia
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#21
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I don't see any reason why another charger - same voltage, with USB adapter - shouldn't work. The power line is all that is being used, not the data lines.
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2009-10-11
, 06:26
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Posts: 1,258 |
Thanked: 672 times |
Joined on Mar 2009
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#22
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The issue is that from USB you are not allowed to draw more than 100mA without negotiating with the host first, asking permission to draw full 500mA. If the host computer give permission for this, the device can then start consuming more power.
For "dumb" chargers, I believe they added a way to signal to the device, that the other end is a charger, by shorting the data lines together. In that case the device can pull as much power as it can get.
There's probably a million metric tonnes of chargers and devices manufactured before USB Charging was standardized. They are not USB Compliant, and might or might not work, might fry your computer's USB port, etc...
Last edited by shadowjk; 2009-10-11 at 06:31.
For "dumb" chargers, I believe they added a way to signal to the device, that the other end is a charger, by shorting the data lines together. In that case the device can pull as much power as it can get.
There's probably a million metric tonnes of chargers and devices manufactured before USB Charging was standardized. They are not USB Compliant, and might or might not work, might fry your computer's USB port, etc...
Last edited by shadowjk; 2009-10-11 at 06:31.
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2009-10-11
, 07:14
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Posts: 3,159 |
Thanked: 2,023 times |
Joined on Feb 2008
@ Finland
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#23
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Originally Posted by ysss
Actually you can. I have couple of smaller ones i think. Shape is exactly same as the smallest nokia wall chargers plug (comes with e71) so it is probably same size but thinner..
You can't get any smaller than this... and it's only $5 each. Multi voltage to boot:
e: and price was $2 or $3.
Last edited by ossipena; 2009-10-11 at 07:18.
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2009-10-11
, 07:29
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Posts: 4,384 |
Thanked: 5,524 times |
Joined on Jul 2007
@ ˙ǝɹǝɥʍou
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#24
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@ossipena: the smallest nokia wall charger is at least about 1.5x larger than that.
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2009-10-11
, 07:49
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Posts: 10 |
Thanked: 3 times |
Joined on Jul 2008
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#25
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Originally Posted by ysss
Are you sure about that...
@ossipena: the smallest nokia wall charger is at least about 1.5x larger than that.
http://europe.nokia.com/find-product...a-charger-ac-5
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2009-10-11
, 08:07
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Posts: 4,384 |
Thanked: 5,524 times |
Joined on Jul 2007
@ ˙ǝɹǝɥʍou
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#26
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I'll take a picture of them side by side later..
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2009-10-12
, 18:55
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Posts: 1,259 |
Thanked: 1,341 times |
Joined on Oct 2009
@ Germany
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#27
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I've bought this one for my N95 and could also use it with the N900 (i hope):
Power Guy SPX.1100
You have your extra Power with you, you can load it over USB and during charging the Powerguy you can Charge also your Mobile. Expensive but great!
Last edited by Helmuth; 2009-10-12 at 19:00.
Power Guy SPX.1100
You have your extra Power with you, you can load it over USB and during charging the Powerguy you can Charge also your Mobile. Expensive but great!
Last edited by Helmuth; 2009-10-12 at 19:00.
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2009-10-12
, 19:27
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Posts: 1,338 |
Thanked: 1,055 times |
Joined on Oct 2009
@ California, USA / Jordan
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#28
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Well as far as I know.. this won't happen at all... Since on my N97 when I connect the microUSB onto any computer it will instantly start charging.. and then it will ask you what type of connection do you want it to connect (PC Suite, Data, or media).. But if you leave it on that screen or press cancel it won't do anything except charge the phone.. so I expect the N900 to do the same exact thing..
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2009-10-12
, 20:05
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Posts: 3,404 |
Thanked: 4,474 times |
Joined on Oct 2005
@ Germany
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#29
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Originally Posted by Hogwash
It seems to be a firmware issue. With OS 37.x I was able to charge from a USB car adaptor, since OS 39.x it doesn't want to charge anymore.
I don't see any reason why another charger - same voltage, with USB adapter - shouldn't work. The power line is all that is being used, not the data lines.
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2009-10-14
, 15:17
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Posts: 4,384 |
Thanked: 5,524 times |
Joined on Jul 2007
@ ˙ǝɹǝɥʍou
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#30
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Originally Posted by jodyfanning
Check it out..
Are you sure about that...
http://europe.nokia.com/find-product...a-charger-ac-5
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