This Sealed AGM (Absorbed Glass Mat) Battery has a capacity of 55 Ampere Hours. AGM batteries are designed with just enough liquid to keep the mat wet with electrolyte, ensuring that no free liquid is available to leak out in the event of a breakage. This makes the battery spill-proof, completely maintenance-free, and easy to transport safely. It meets the quality standards of BS EN ISO 9001:2000. With a capacity to provide up to four hours of machine use, this battery is specifically designed for deep cycle applications.