I have one cranking battery for my motor and two deep cycle for my trolling motor. I would like to hook another battery to my cranking so Ill have more running time on my live wells and fish finder. Do I hook up the positive to the negitive or positive to positive? Do I hook up a deep cycle or cranking battery? After a long day of fishing the aireator shows signs of weakness and when it kicks on my graph fades in and out. I think it is to much draw on that one battery. Can anyone help?
#2323, "RE: Battery set up" In response to Reply # 0
If you were to do this, connect the positives and negatives together so they are hooked up in parallel, 12 Volts (versus in series, 24 Volts). However, do not hook together a deep cycle to a cranking battery, very dangerous. You shouldn't even hook up a new and an old battery together. If I needed more juice I would buy a deep cycle battery and run my live well and electronics off of it. Leave your cranking battery for just your motor and then it should provide enough power.