Champion AGM Power Sport Batteries are constructed with lead calcium alloy and Absorbed Glass Mat (AGM) technology to provide you with a fully sealed - maintenance free operation. This means No spills, no leaks, and no water to check. This design provides you with the most powerful, vibration resistant, highest amp hour capacity, and longest cycle-life battery on the market so you can power even more accessories and ride harder and longer. The fiberglass mat separators and high cell compression extend battery life by delivering superior vibration resistance from engine abuse, extreme terrain conditions.