I have to support the previous review, although my problems with it were different. Mine didn't have instructions either and so I put the remote in one way and the nunchuck on it. There was a green light if nothing was in or if the nunchuck was on the remote. The light turned red if just the remote was set in. I tried both ways to see if it would charge with no change. I looked up the company online and saw no reference to instructions or common problems.I took it back to the game store, which usually counsels against buying non-certified products. They were happy to exchange it and recommended NYCO's charger.