I have one battery that never gets disconnected from the motor and a second one on a battery switch that powers electronics and the like. The last battery (on the motor), an Interstate starting battery (888 cca, 1000 mca), I took out after 8 years and put it in my camper. I replaced it with another of the same which is now 4 years old. I have bought other Interstates with not so good results. One lasted 1 month after the warranty ran out(1 year).
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