YB9A-A 12V 9AH GEL Replacement Battery for Banshee YB9A-A Common uses for the YB9A-A GEL: ATVs, Motorcycles, Personal Watercraft, Jet Ski's, Snowmobiles and more. When a Gel Cell battery is charged, no hazardous fumes escape the battery case, gases are processed within the battery itself. Requires no addition of water during the life of the battery..