E3.401 - 320 CCA LiFePO4 Lithium BatteryDollar for dollar E3 Lithium is the lightest, most powerful, most economical battery on the market today. E3. 401 delivers 680 Pulse Cranking Amps with a capacity of 12. 4 amp hours and weighs in at just 3. 9 pounds. Some of the performance benefits include: 80% Lighter than traditional batteries 3x Longer life than traditional batteries Charges faster than traditional batteries Delivers much quicker starts than traditional batteries IP 66