I've recently learned that optimas/kinetic/oddesey batteries all need to be used constantly/daily. Also, once they fall to or under 11.9v, internally they begin losing its power. I trade off vehicles, one per week. I believe that added to the problem.

I'm goin to try interstates top battery. Same CCA as a red top but has more RESERVING capabilities.

 

interstate batteries are good. we used to put em in the porsches at the shop i used to work at

 

I've had 4 Red Top Optima batteries and never ran into any problems (knock on wood). The last one I had lasted me about 5 years. The guy @ Battery Bills told me that the average life for the Red Top is about 3 years. I asked him about the Yellow Tops and he recommended that I don't go with that one. He said that the Yellow Top has more reserve capacity but the Red Top has more CCA. He also told me that the Yellow Top's life expectancy is shorter than the Red Top.

Hope you get your problem fixed...