I have a 901 usb pass through and it is causing my laptop to shut off, so I bought a usb adapter for the wall plug in and that is not strong enough for the ecig. It lights up but it won't smoke. Is there an adapter for the wall plug in I can buy that will be strong enough? I have bought several usb pass through 901s AND I would like to use them but not at the expense of my lap top. Any suggestions