what i did was buy a car adapter usb one and just take it apart and run the wire leads to the battery. If you get a good car adapter it will already have a fuse in it. the car adapters take 12v down to 5v which is standard USB /phone charging. is yours just rated for 5 v?
if so you probably fried it because you ran 12v (battery) to it.
mine works fantastically never had a problem with it. I then wired it all the way up to the frame of my bike. It also has an additional USB port to attach something other than my phone.
1984 Honda Shadow VT500c
Last edited by computerfixit524; 12-06-2012 at 03:51 PM.