fish1050
Headphoneus Supremus
Yes but that's not true for all devices, they have to have a smart component that limits the actual consumption.
Also it doesn't seems to be that common. Take a smartphone for an example, they don't control the electric flow when charging, the power that you supply with your charger is what you get (although i don't know if they limit at some point, never tried it with such higher currents, can't assure you 100%).
I don't know if that's the case on the X1, though![]()
A high quality usb charger will have surge and overcurrent protection circuitry to prevent overcharging the connected devices. You get what you pay for, buy a cheap $2.00 charger or do some research and buy a high quality one that has built in protection. I don't want to have to carry around multiple chargers all the time. I use my charger to charge everything from my Sony A17 to my Nikon digital camera, and cellphone and I have used it to charge my girlfriends tablet. Never had a single problem damaging any of these devices.