Super B Mason 12V25AH (formerly SP25P-JC) batteries are based on Lithium Ion technology which enables them to generate a large power output with the fraction of the weight of a traditional lead acid battery. The technology used by Super B makes the batteries the safest Lithium Ion versions available. This particular model features an integral battery management system (BMS) which ensures the highest level of safety during use.Huge weight saving compared to a traditional batteryHuge cranking current, ideal for large capacity and high compression enginesIntegral battery management system provides constant optimal performance and safetyLow self discharge, ideal for vehicles which are not used all the timeThe Super B Mason 12V25AH battery is designed to provide a long, maintenance free service life. It can produce large cranking power making it suitable for race engines up to 6 litres in capacity. It has a stable and flat discharge meaning you will always have over 80% of the battery capac