You check the fuse?
I have never seen a 12vdc usb charger take any more than 8A to run, and that's for a 65w+30w+30w usb charger, and even that one reduces total load to about 95 watts. I'm thinking the charger blew its fuse inside the unit (most have replaceable fuses), or somehow it shorted out and popped the bike's fuse. No other explanation, unless the wire connector on the back of the outlet came off, and I highly doubt that.Using a cigarrette lighter jack for a fast charger is somewhat suspect. What is the amp draw on it?
The OP is in way over his head, does he think the fuse flys out when it blows?
Fuse*What is a "teacher"? Did you mean charger, or fuse? If the fuse burned out again, did it burn out before or after you plugged the charger in? If before, then there's a short somewhere, check the socket itself to make sure nothing is in the hole. If it was after you plugged the charger in, then I'd say its the charger you're trying to use. There should be nothing else on that circuit except the outlet, unless you've installed something on that same circuit like a gps or maybe heated grips and you're overloading the circuit.
30w charger, nothing more. Not have heated seats or gripsI'll ask again, what is the amp draw of what you are plugging in? Or wattage or something. It is overloading the circuit! If it was the wiring it would blow without anything plugged in, normally.