FIXED!!!!! First off thanks for yalls help. So here's the fix. The first thing I checked was my connection which was fine. I took apart everything connected to the second battery. I decided to check the washers. On the f16 non conductive washers on terminals cause issues. The washers I had was from a local car shop. I shot the washers with my meter all the washers ranges from 5ohms to 300ohms!!! Wtf!! I had 6 washers totals 3 on the positive and 3 on ground. I replaced the washers with good conductive ones. Works like a champ!14.6 volts. My battery is indeed wired in parallel. I don't know what I was thinking earlier I guess because I was so frustrated I wasn't thinking straight. So moral of the story don't use washers from local shops and always make sure its conductive!