T1 USB vs Wall charger - Page 2

bla · 01-03-2013, 02:46 PM

My reference to it lasting longer was "tongue in cheek" lol... what is true is that the a/c charger takes less time to fully charge... I am using a smart phone charger btw... I use dropbox to add books and only plug it in to the pc when I want to upgrade the firmware... I have had far less trouble since doing so

rupor · 01-03-2013, 03:05 PM

The only requirement for wall chargers to be compatible with all Sony devices - x50 and Tx is that chargers have to be complaint with EU cell phone charging standard. As part of the standard 2 middle wires (out of USB four) should be short circuited, so device will recognize that this is charger and not a computer. Most of the phones today have complaint chargers - most, but not all. As it was mentioned here Apple uses those wires differently - it puts some voltage between wires, so device will know how much current to draw and chargers from iPad are different form chargers for iPod in this sense - or at least they used to be. Blackberry chargers often do not bother with standard at all - since Blackberry devices (at least the ones I have) could charge from anything. So for myself I bought usb extension cable, cut it to short length, shorted 2 middle wires on the device end, left 2 middle wires on the charger end isolated and put everything back together. Now when inserted between reader and charger this thing allow me to charge from any charger - complaint or not. It works with all chargers I tried for all my x50, T1 and T2.

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01-03-2013, 02:46 PM	#16
bla E bookworm Posts: 358 Karma: 2013666 Join Date: Jul 2010 Location: Ontario, Canada Device: Sony PRS T1,Android Tablet, I phone	My reference to it lasting longer was "tongue in cheek" lol... what is true is that the a/c charger takes less time to fully charge... I am using a smart phone charger btw... I use dropbox to add books and only plug it in to the pc when I want to upgrade the firmware... I have had far less trouble since doing so

01-03-2013, 03:05 PM	#17
rupor meat popsicle Posts: 225 Karma: 100000 Join Date: Jul 2007 Location: USA Device: Kindles, Pixels, iPads	The only requirement for wall chargers to be compatible with all Sony devices - x50 and Tx is that chargers have to be complaint with EU cell phone charging standard. As part of the standard 2 middle wires (out of USB four) should be short circuited, so device will recognize that this is charger and not a computer. Most of the phones today have complaint chargers - most, but not all. As it was mentioned here Apple uses those wires differently - it puts some voltage between wires, so device will know how much current to draw and chargers from iPad are different form chargers for iPod in this sense - or at least they used to be. Blackberry chargers often do not bother with standard at all - since Blackberry devices (at least the ones I have) could charge from anything. So for myself I bought usb extension cable, cut it to short length, shorted 2 middle wires on the device end, left 2 middle wires on the charger end isolated and put everything back together. Now when inserted between reader and charger this thing allow me to charge from any charger - complaint or not. It works with all chargers I tried for all my x50, T1 and T2.

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