Hi I’m new here but I have a 2005 Polaris predator it was working great a friend drove it and it was fine and I go to start it and there’s no power… Battery is good and connections are tight… Where do I go from here? I can turn the key and no lights but I can hook a battery charger up and I have lights I tested the battery it tests out good it won’t start on the battery charger? What’s my next step?