In order to use a winch successfully, you should learn about its parts.
Sometimes you may need two batteries to operate a winch. Be sure to check the amp and voltage rating information for your winch to find out if one battery will be enough. Also make sure all electrical connections are clean and tight.
If the ORV engine is idling during winching, the battery may be draining faster than it is charging. Always pay close attention to your voltage gauge to make sure your battery will have enough power to start your ORV.