When a Gel Cell battery is charged, no hazardous fumes escape the battery case, gases are processed within the battery itself. YTZ7SGEL 12V 6AH GEL Replacement Battery compatible with High Performance Power Sports - 10PK Common uses for the YTZ7S GEL: ATVs, Motorcycles, Personal Watercraft, Jet Ski's, Snowmobiles and more..