Originally Posted by
Letitride3c
higher amp. could damage the delicate electronic boards, etc. inside the devices.
Devices will only draw as much current as they require. If a device only needs 500mA to charge and is plugged into a 1 A charger, it will still just get 500mA. The "1A" charger refers to the charger's capacity, not how much current it might force onto unsuspecting electronic devices.
Originally Posted by
Flahusky
IF I understand the OP's question correctly...
Does a USB charger output different voltage based on input voltage?
Short answer is NO, USB Standards world wide is 5 volt DC @ 500–900 mA (roughly). So the real question is, can the charger take 90-250 volts AC and convert it to 5 volts DC with out frying it self?
In other words, you should be fine plugging in your USB devices!
Yes.