Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Mobile/8C148) I' m wondering if it is a good idea to charge an iPhone with a car plug adapter through the cigarette lighter. I don't think cigarette lighter sockets have any surge protection and the electricity going towards the iPhone may damage it. This is especially a concern if you turn on or turn off your car with your iPhone still plugged in.
I've been charging frequently my iPhone's in my truck this way for the last 3 years and have never had a problem.
the ciggarette lighter itself has little surge protection but that 12v to 5V adapter has a surger protector and an in-line fuse that will cut the current to your phone if it exceeds the specified limit of the fuse so in other words you are safe