USB chargers/sockets are supposed to provide 5v ±5% = 4.75-5.25v and this is a standard... if the voltage is not in this range then it isn't in the USB spec. From many reports around here, it seems as tho' there is considerable variance in actual USB PSUs working. Check what others and try out any you've got. they'll either work or not but if genuine USB PSU then even if not working, they can't do any damage...
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Originally Posted by MerLock
I've also read that some people have had success using a micro-usb wall charger to charge the 650. Is their voltage limits to these micro-usb chargers or do they all provide the same voltage? If there is a voltage limitation, does anyone know what the correct voltage would be?
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