I have a 98 Jeep TJ with a plow. I put a brand new optima 750 cca battery last year. I didn’t use the Jeep for about a month in Sept and the battery was dead. After jumping it, it never got back to a full charge. Auto zone replaced it 3 weeks ago. I didn’t drive the Jeep for 5 days and now the new battery is dead also. I don’t know what is draining the battery. The plow switches are all off. Need help.