After some testing I have found out that it is not the battery. I have found out through some testing that the load on my battery is about 7.8 amps. My mechanic and another master mechanic suspect the alternator is drawing current. They said it can't be a smaller switch or light because the load is too high. I agree, because my car dies in a matter of a couple hours not weeks or days. It's rare but current can actually flow back to the alternator. I guess I will find out Monday or Tuesday.
For now I will keep the neg cable off the battery.