MobileRead Forums - View Single Post - PRS-350 Sony PRS350 charger

delphin · 02-24-2011, 01:17 AM

The 'micro-usb' plug is standardized voltage and pin arrangement wise, so it shouldn't hurt anything to try.

Most modern cellphone style chargers should work. Since a charger is not a computer, most of these newer chargers short together the unused 'data' pins as a simple way to tell the device that it is a charger not a computer.

This is what the Sony PRS-x50 style readers expect.

Some older chargers designed for Apple devices used a different arrangement to signal that the usb device was a charger, and these are not detected correctly by the Sony. Doesn't hurt anything to try, it though, if the charger isn't detected properly, the Sony will simply display a text message to tell you that it can't find a proper charger.

The only other issue is that some very small devices may have low current chargers that don't fully meet the spec. Micro-USB charger devices should put out at least 1000ma or 1 Amp of peak charging current at 5 volts (some as high as 1.5 Amps). The Sony should be happy with a charger rated at 750 Ma. or higher, but I wouldn't go lower than that.

I am guessing that the charger you have should be just fine, but if not, you can find a fully Sony Compatible aftermarket charger from Amazon for less than 10 dollars total shipping included.

02-24-2011, 01:17 AM	#6
delphin Evangelist Posts: 434 Karma: 346901 Join Date: Dec 2010 Device: SONY PRS-650	The 'micro-usb' plug is standardized voltage and pin arrangement wise, so it shouldn't hurt anything to try. Most modern cellphone style chargers should work. Since a charger is not a computer, most of these newer chargers short together the unused 'data' pins as a simple way to tell the device that it is a charger not a computer. This is what the Sony PRS-x50 style readers expect. Some older chargers designed for Apple devices used a different arrangement to signal that the usb device was a charger, and these are not detected correctly by the Sony. Doesn't hurt anything to try, it though, if the charger isn't detected properly, the Sony will simply display a text message to tell you that it can't find a proper charger. The only other issue is that some very small devices may have low current chargers that don't fully meet the spec. Micro-USB charger devices should put out at least 1000ma or 1 Amp of peak charging current at 5 volts (some as high as 1.5 Amps). The Sony should be happy with a charger rated at 750 Ma. or higher, but I wouldn't go lower than that. I am guessing that the charger you have should be just fine, but if not, you can find a fully Sony Compatible aftermarket charger from Amazon for less than 10 dollars total shipping included. Last edited by delphin; 02-24-2011 at 01:32 AM.