Introducing the new ODYSSEY Performance Series battery Model 31-925T (Group 31, SAE Lead Posts) Designed to handle the increased use of onboard accessories in today’s vehicles, ODYSSEY Performance Series batteries combine long service life, high reliability and deep cycle capabilities. The ODYSSEY Performance series batteries provide all the reliability of the ODYSSEY Extreme Series batteries but without the high cold cranking amps (CCA) or reserve capacity (RC) that many people may not require.