Re: Battery charging : 1A from PC?

2008-11-04 Thread Xavier Cremaschi
arne anka a écrit :
 -- but i am sure, trying to _charge_ with 500 is  
 asking too much.

Thanks for your answer.
Xavier.


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Re: Battery charging : 1A from PC?

2008-11-04 Thread arne anka
 Does someone know if this kind of cable could be used to double-charge

it might work -- but the usb spec does not specify that kind of thing.
and, there's no guarantee that indeed 2x500 is drawn -- it might as well  
be 1x1000 and 1x0.
those external harddisk usually only pull more then 500 for a very short  
time at startup (if at all). so, it's either up to the fuse or the usb  
host to allow that -- but i am sure, trying to _charge_ with 500 is  
asking too much.

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Battery charging : 1A from PC?

2008-11-03 Thread Xavier Cremaschi
Hi folks,

I have an external 2.5 hard disk drive which could be used without any 
external power supply.
To achieve this, it was shipped with a 'Y' USB cable :
- on one end it has a mini USB connector
- on the other end it has 2 USB connectors
So you have to use 2 USB plugs to power the disk.

Does someone know if this kind of cable could be used to double-charge 
the FreeRunner ? Because naively I think that 2*500mA (maximum per plug) 
= 1A, but if the FreeRunner asks for 1A on 1 plug my laptop is dead...

Xavier.


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