If the remote takes batteries, then it may need new batteries.If it is a controller that has a rechargeable battery, then it might need some charging. Another suggestion is, open the back of the Wii remote and go to your console and open the compartment that has the plug-in areas. Then, press the sync button on both the remote and the console and hold it down and see if it comes on. If not, after you have been holding it down, stop pressing the sync button and then press A. If this doesn’t resolve your problem, then I suggest either reading the manual for the Wii or contact the company. Hope this helped!