Odyssey PC2150 Batteries with metal jacket to withstand higher operating temperatures. Manufactured to military specs and with a life expectancy of 6-12years when maintained and charged correctly. The Odyssey PC2150 is a maintenance free battery and is spill proof making it possible to mount it upside down or on its side. They are extremely resistant to vibration and can cycled over 400+ times up to 80% depth of discharge. Details   Case Flame retardant cell containers Terminals SAE and 3/8" Stud (Pos.),  5/16" Stud (Neg.) Colour Cover: Odyssey Red Case: Black   Dimensions   Length 330.2 Width 172.7 Height 240.5 Weight 35.3   Power Figures   PHCA 2150 CCA 1150 HCA 1545 MCA 1370 Capacity @ 20 Hour Rate (Cap) 100 Reserve Minutes (RM) 205 Internal Resistance 2.2 milli ohms Short Circuit Current 5000A   Life Cycle   Design Life 8-12 years Cycles @ 80% D.O.D. 500 cycles Cycles @ 100% D.O.D. 400 cycles Operating Temperature -40°C to 80°C Specifications subject to change without notice