Thread: PRS-600 Any Reason to have an AC charger?
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Old 12-06-2009, 02:48 PM   #30
Haesslich
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Join Date: Sep 2009
Device: Kobo Touch,Glo,Mini,Aura/HD/One,H20, Sony PRS-300/600, Kindle 3-PW
Quote:
Originally Posted by Bilbo1967 View Post
Not sure about that - I have never installed the Library software and my reader charges just fine from the USB port on my laptop

Having said that, I have recently purchased an AC charger and it undoubtedly charges quicker, is more convenient and allows you to read whilst the 505 is charging.
Given that these charge only in USB HOST mode, this means that the USB port not only has to have power, but the USB port has to be actively in use by the host computer for it to charge - in other words, the OS has to see the device, not just have the device plugged into a free USB port (which is what most USB chargers basically offer - a connection to the power leads only). So most USB chargers will not work right with the Sony as a result... and if the USB port goes idle for any reason (like the drives in the OS the reader represents becoming unmounted), it stops the charging process... but leaves the USB port on the reader powered on, which could result in a drain.

I suspect the arguments for the PSP charger being good for 'being able to read while charging' are more of a consideration for many, though... since plugging into USB means you lose all control over the device.
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