I never like to get caught with my pants down so I swap all batteries every 5th season. Trying these Cummins batteries this time around. 4x group 31, 1000 CCA for starting and thrusters and a 925CCA for the generator. Have 2 L16's on order for the house bank for a total of 430AH @ 20hr rate. Around $1700 boat bucks for all 7.
