Common uses for the YT12B-4 GEL: ATVs, Motorcycles, Personal Watercraft, Jet Ski's, Snowmobiles and more.YT12B-4GEL 12V 10Ah GEL Replacement Battery compatible with UltraMax YT12B4 YT12-B4 - 4PK When a Gel Cell battery is charged, no hazardous fumes escape the battery case, gases are processed within the battery itself.