Quote:
Originally Posted by ProDigit
Then let me ask you why one is able to charge the device on a pc?
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Because that level of connection is managed by the generic drivers, perhaps?
Quote:
Originally Posted by ProDigit
Normally if you connect only the reader to your USB port, and that USB port is the only port used in the USB hub of the pc, your pc should give 5V 500mA output.
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Not necessarily - could, but not should - See the
Battery Charging Spec v1.0 Spec and Battery Charging Adopters Agreement for details.
Quote:
Originally Posted by ProDigit
I believe that just applying the right voltage to the right pins,with enough powerful poweradaptor should charge your batteries.
The reason being that there is no battery data transferred over USB connection
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Yes, but only as long as the "right voltage to the right pins" matches the requirements of the Sony (which might or might not be what the spec requires, as I think the spec was agreed after the 505 was designed.)
'Should' notwithstanding, the fact is that in practice, at least in my experience & other reports, 505's don't charge from your basic "wall-wart" USB chargers...